DP752/DP730/DP722 - User Guide

WELCOME

Thank you for purchasing Grandstream DP752 DECT Cordless VoIP Base Station and DP722/DP730 DECT Cordless HD Handsets.

The DP752 is a powerful DECT VoIP base station that pairs with up to 5 of Grandstream’s DP series DECT handsets to offer mobility to business and residential users. It supports a range of up to 400 meters with DP730 and up to 350 meters with DP722/DP720 outdoors and 50 meters indoors to give users the freedom to move around their work or home space, delivering efficient flexibility. This DECT VoIP base station supports up to 10 SIP accounts and 5 concurrent calls while also offering 3-way voice conferencing, full HD audio and integrated PoE. A shared SIP account on all handsets will add seamless unified features that gives users the ability to answer all calls regardless of location in real-time. The DP752 supports a variety of auto-provisioning methods and TLS/SRTP/HTTPS encryption security. When paired with Grandstream’s DP720, DP722 or DP730 handsets, the DP752 offers a powerful cordless DECT solution for any business or residential user.

The DP730 is a DECT cordless IP phone that allows users to mobilize their VoIP network throughout any business, warehouse, retail store and residential environment. It is supported by Grandstream’s DP750 and DP752 DECT VoIP base stations and delivers a combination of mobility and top-notch telephony performance. Up to five DP730 handsets are supported on each base station while each DP730 supports a range of up to 400 meters outdoors and 50 meters indoors from the base station. It touts a suite of robust telephony features including support for up to 10 SIP accounts and 2 concurrent calls per handset, full HD audio, a 3.5mm headset jack, push-to-talk, a speakerphone and more. When paired with Grandstream’s DECT Base Stations, the

DP730 offers a powerful cordless DECT solution for any business or residential user.

The DP722 is a DECT cordless IP phone that allows users to mobilize their VoIP network throughout any business, warehouse, retail store and residential environment. It is supported by Grandstream’s DP750 and DP752 DECT VoIP base stations and delivers a combination of mobility and top-notch telephony performance. Up to five DP722 handsets are supported on each base station while each DP722 supports a range of up to 350 meters outdoors and 50 meters indoors from the base station. It touts a suite of robust telephony features including support for up to 10 SIP accounts and two concurrent calls per handset, full HD audio, a 3.5mm headset jack, push-to-talk, a speakerphone and more. When paired with Grandstream’s DECT Base Stations, the DP722 offers a powerful cordless DECT solution for any business or residential user.

PRODUCT OVERVIEW

Feature Highlights

The following tables contain the major features of the DP752 / DP730 / DP722:

DP752 Features at Glance

DP722 Features at Glance

DP730 Features at Glance

DP752 Technical Specifications

The following table resumes all the technical specifications including the protocols / standards supported, voice codecs, telephony features, languages and upgrade/provisioning settings for the Base station DP752.

Table1: DP752 Technical Specifications

DP730 Technical Specifications

The following table resumes all the technical specifications including the protocols / standards supported, voice codecs, telephony features, languages, and upgrade/provisioning settings for the DP730 handsets.

Table 5: DP730 Technical Specifications

DP722 Technical Specifications

The following table resumes all the technical specifications including the protocols / standards supported, voice codecs, telephony features, languages and upgrade/provisioning settings for the DP722 handsets.

Table 6: DP722 Technical Specifications

GETTING STARTED

This chapter provides basic installation instructions including the list of the packaging contents and also information for obtaining best performance with the DP730/DP722 DECT Cordless HD Handsets and the DP752 DECT Cordless VoIP Base Station.

Equipment Packaging

DP752

1 Base unit 1 Universal power supply 5V 1 Bracket 1 Ethernet cable 1 Quick Installation Guide 1 GPL Statement

DP730

1 Handset unit 1 Universal power supply 5V 1 Charging station 1 Handset Belt 1 Rechargeable Li-ion battery 1 Quick Installation Guide

DP722

1 Handset unit 1 Universal power supply 5V 1 Charging station 1 Handset Belt 2 Rechargeable batteries 1 Quick Installation Guide

Connecting DP752

To setup the DP752 DECT Cordless VoIP Base Station, please follow the steps below:

You have two options for power and network connection of the base station: AC power or Power over Ethernet (PoE).

Connecting via AC power

1. Connect the micro-USB connector into the related port on the base station and connect the other end of the power adapter into an electrical power outlet.
2. Connect the supplied Ethernet cable between the Internet port on the base station and the Internet port in your network or the switch/hub device port.

Connecting via PoE

To connect the base station using PoE, you need to connect the Ethernet cable provided (or 3rd party network cable) between the Network Socket on the base station to Ethernet port of your PoE switch/hub.

Setting up DP730/DP722 Handsets

Please follow below steps to insert batteries into the Handsets:

• Open the battery compartment cover.
• For DP730: Inset Li-ion battery with the electrodes in the bottom left corner.
• For DP722: Insert AAA batteries with correct polarity (+ / -).
• Close the battery compartment cover.

Battery Information

DP722 Batteries Specifications	DP730 battery specifications
Technology: Nickel Metal Hydride (Ni-MH) Size: AAA Voltage: 1.2V Capacity: 800mAh Charging time: 12 hours from empty to full Standby time: up to 250 hours Talk time: up to 20 hours’ active talk time	Technology: Li-ion Nominal Voltage: 3.8V Capacity: 1500mAh Charging time: 12 hours from empty to full Standby time: up to 500 hours Talk time: up to 40 hours’ active talk time

In order to get the best performance of your DP730/DP722 Handsets, we recommend using original batteries provided in the package or batteries compliant with above specifications.

Setting up the Charge Station

Please refer to the following steps for setting up the charge station and charging the Handsets:

1. Connect the DC plug on the power adapter to the micro-USB connector on the charge station.
2. Connect the other end of the power adapter into an electrical power outlet.
3. After setting up the Handsets and the charge station, place the Handsets in the charge station.

DP752 LED Patterns

The DP752 has 5 LED lights on it. Please refer to the following table for the meaning of each light.

LED Light	Status
	Indicates Power ON/OFF.
	Indicates status of SIP account registration and network Solid ON: SIP account registered. Blinking: SIP account not registered or network error
	Indicates status of the DECT handset registration: Solid ON: Handset registered to base. Fast Blinking (0.25s ON/0.25s OFF): Paging handset. Blinking (0.5s ON/0.5s OFF): Pairing mode.

DP730/DP722 Handsets Description

The LCD screen and the Keypad are the main hardware components of the DP730/DP722.

	Key	Description
1.	Earphone	Delivers audio output.
2.	LED Indication	Red: Charging. Green: Charge completed. Blinking: Missed call(s) or Voice Mail received.
3,5	Left and right softkeys	Correspond to functions displayed on the LCD. These functions change depending on the current context.
4.	LCD display	Shows call information, handset status icons, prompt messages, etc.
6.	4 Arrow key combination	Permits navigation of the cursor through the displayed menu options.
7.	Men/Ok key	Selects the option chosen by the cursor. (Enters the main menu from the home screen.)
8.	Off-hook / Dial key	Enters dialing mode, or dials number entered.
9.	On-hook / Power key	Terminates calls, or turns the handset on / off.
10.	Alphanumeric Keypad	Provides the digits, letters, and special characters in context-sensitive applications. For + sign, press and hold key 0.
11.	# / Lock key	Locks keypad against unintentional entries when keep pressing #. Press and hold # key for approximately 2 seconds to lock the keys. Press Unlock softkey and then # to unlock the keys.
12.	Mute key	Activates or deactivates the mute feature.
13.	Hands-free / Speaker key	Switches between handset and hands-free / speaker modes.
14.	Microphone	Picks up audio earpiece and hands-free calls.

	Key	Description
1.	Proximity sensor	The proximity senor can detect and measure gravitational acceleration, tilt, vibration, altitude changes, and static position.
2.	Earphone	Delivers audio output.
3,4	Volume up / Down Keys	Configure the handset and ringtone volume.
5.	PTT Key	PTT (Push-to-Talk) button, to initiate PTT call.
6.	Hands-free / Speaker key	Switches between Handset and Hands-free / Speaker modes.
7.	Arrow key combination (Up, Down, Left, Right)	Allows navigation of the cursor through the displayed menu options.
8.	Off-hook / Dial key	Enters dialing mode, or dials number entered.
9.	Alphanumeric Keypad	Provides the digits, letters, and special characters in context-sensitive applications. For + sign, press and hold key 0.
10.	* / Silent Mode key	Activates or deactivates the silent mode (no ringtone heard during incoming call) when keep pressing on * in idle screen.
11.	LED indicator	1dual-color LED indicator indicating power, call, battery, message waiting…
12.	3.5 mm headset jack	Phone connector for the headphones/headsets.
13.	Color LCD Screen	2.4-inch (240×320) TFT color LCD
14.	Softkeys	Correspond to functions displayed on the LCD. These functions change depending on the current context.
15.	Mute	Mute microphone during conversation.
16.	Menu/OK key	Selects the option chosen by the cursor or enters the main menu from the home screen.
17.	On-hook or Power key	Terminates calls or turns the handset on / off.
18.	# / Lock key	Locks keypad against unintentional entries when keep pressing #. Press and hold # key for approximately 2 seconds to lock the keys. Press Unlock softkey and then # to unlock the keys.
19.	Microphone	Picks up audio earpiece and hands-free calls.

DP730/DP722 Icons Description

The following table contains description of each icon that might be displayed on the LCD screen of the DP730/DP722 Handsets.

Table 14: DP730/DP722 Icons Description

	Battery status Not equipped with battery
	Battery status Battery empty
	Battery status Battery low
	Battery status Battery normal
	Battery status Battery full
	Battery status Charging
	Signal status Not subscribed
	Signal status Not in range
	Signal status Signal very low
	Signal status Signal low
	Signal status Signal normal
	Signal status Signal good
	Signal status Signal very good
	Microphone MUTE Status OFF – Not muted ON – Muted

	Speaker status OFF – Speaker is inactivated ON – Speaker is activated
	Headset icon
	Missed Call icon
	Voicemail icon
	Ringtone status OFF – Ringtone off (Silent mode) ON – Ringtone on
	Keypad Lock status OFF – Keypad unlock ON – Keypad locked
	DND Status. OFF – Do Not Disturb disabled ON – Do Not Disturb enabled
	Call forward
	Call waiting
	Information
	Account not registered
	Account Registered
	Error message
	Handset number
	Incoming Call notification
	Outgoing Call notification
	Missed Call notification
	Voicemail notification
	Contacts
	Call History
	Registration
	Voice Mail
	Preferences
	Shortcut
	Call Features
	Status
	Settings

DP730/DP722 Handsets Menu

The Handsets has an easy-to-use menu structure. Every menu opens a list of options. To open the main menu, press “Menu” (left softkey) when the Handsets is on and in standby mode. Press Arrow keys to navigate to the menu option you require. Then press “Select” (left softkey) or OK/Selection key to access further options or confirm the setting displayed. To go to the previous menu item, press “Back” (right softkey). You can press Power key at any time to cancel and return to standby mode. If you do not press any key, the Handsets automatically reverts to standby mode after 20 seconds.

BASIC OPERATIONS

Turning the Handsets ON / OFF

To turn ON the handsets

• Long press on Power key until the LCD screen lights up.

To turn OFF the handsets

• Long press on Power key again when the handsets is idle until the display turns off.

Setup Wizard

Setup wizard shows at first access to DP722/DP730 or factory reset allowing users to configure handsets language and date/time. Users can quit at any time by pressing “Skip” (left softkey).

Register DP730/DP722 Handsets to DP752 Base Station

1. On DP752 Base station, press and hold the Radio/Page button for 4 seconds until the Radio icon starts blinking to start Subscription process. Or Access web UI, and press Subscribe icon to Open Subscription.
2. On DP730/DP722, press “Subscribe” softkey if available on the main screen or access Menu 🡪 Registration 🡪 Register while the DP752 Radio icon is blinking.
   Note: “Subscribe” softkey appears only if DP730/DP722 is not registered to any DP752 base station.
3. Select BaseX (X=1-4) corresponding to the desired base station DP752, then press Subscribe.
4. The DP730/DP722 will search for nearby base stations and will display the RFPI code and Base station name of the discovered DP752.
5. Press Subscribe to pair with the displayed DP752.
6. The DP730/DP722 will display Easy Pairing on the LCD and play an audible buzz when successful. Then it will return to the home screen, displaying the Handsets name and number assigned by the registered base station.

Using DP730/DP722 with Multiple DP752 Base Stations

DP730/DP722 is able to be registered to up four different DP752 base stations.

Registering DP730/DP722 to an additional DP752 base station

Considering DP730/DP722 is previously registered to an initial base station, please follow below steps to register a Handset to an additional base station:

1. Press Menu (left softkey or the selection key) to bring up operation menu.
2. Use arrow keys to reach Registration and select Register.
3. Navigate to an unsubscribed base using arrow keys, and click on Subscribe.
4. Make sure that the subscription is opened on the new base station.

Switching Between Different Base Stations

1. Press “Menu” (left softkey or the selection key) to bring up operation menu.
2. Use arrow keys to reach Registration.
3. Navigate to Select Base using arrow keys.
4. Select the desired base station and press Select.

Unregister the DP730/DP722

• Using DP730/DP722 Handsets:

1. On DP730/DP722, press “Menu” (left softkey or the selection key) to bring up operation menu.
2. Press arrow keys to move the cursor to Registration, then press “Select” (left softkey).
3. Navigate to Deregister.
4. Select the Handsets to be unregistered and press “Deregister” (left softkey).
5. Enter the system PIN code (default: 0000).
6. Press “Done” (left softkey) to confirm or “Back” (right softkey) to cancel.

• Using DP752 Base Station UI:

1. Access DP752 Web Interface.
2. Go to Status 🡪 DECT Base Status.
3. Locate the Handsets to unregister and press “Unsubscribe” button.

Setting the Key Lock

You can lock the keypad against unintentional entries. It is, however, still possible to pick up incoming calls even with the keypad locked.

• To enable the Keypad Lock

1. Press the Pound key “#” and hold for approximately 2 seconds.
2. The display shows Keypad Locked briefly and the key lock icon appears in the display.

• To disable the Keypad Lock

1. Press and hold Pound key “#” to unlock the keys.
2. Keypad Unlocked appears briefly in the display and a windows prompt will be displayed to confirm that the keypad is unlocked.

Locating a DP730/DP722 Handset from DP752 Base station

In some situations, you may have a DP730/DP722 Handsets incorrectly positioned and you don’t know its current location. You can locate a DP730/DP722 Handsets from his registered DP752 base station using below steps:

Locate via DP752 Web UI

1. Access the Web GUI of your DP752 using the admin’s username and password.
2. Press Login to access your settings and navigate to Status 🡪 DECT Base Status tab.
3. Choose which Handsets to locate and press its corresponding Page button.
4. A paging call will be received on the selected DP730/DP722 Handsets.
   Note: If you press Page All icon , all registered DP730/DP722 handsets will be receiving paging call.
5. Once located, you can press End Softkey to end paging call.

Locate via DP752 Base station

1. On DP752 Base station front side, press Radio/Page button.
2. All registered Handsets will receive Paging call.
3. Once located, you can end the paging calling by pressing any key on the Handsets or by pressing again Radio/Page button.

Checking System Status

You can view the system status on your handsets including the following information of the system:

Item	Description
Firmware	Current firmware version installed on DP722/DP730.
IP Address	IP address of the base station DP752 if registered.
Subnet Mask	Subnet Mask of the base station DP752 if registered.
Gateway	Gateway IP of the base station DP752 if registered.
MAC address	MAC address of the base station DP752 if registered.

Item	Description
Model (RF)	Displays the product model, hardware version and DECT region of DP722/DP730. i.e.: DP722/DP730 1.4A (EU)
Firmware	Current firmware version installed on DP722/DP730.
IPEI	International Portable Equipment Identifier. Unique “serial number” for DECT handsets.

• To check the Handsets Status

1. Press Menu to bring up operation menu.
2. Use arrow keys to reach Status menu , then select Handset Status.

• To check the Base Status

1. Press Menu to bring up operation menu.
2. Use arrow keys to reach Status menu , then select Base Status.

Basic Network Settings

Once connected to the network, DP752 base station will attempt to contact a DHCP server to obtain valid network settings (e.g., IP address, subnet mask, gateway address and DNS address) by default.

The users could also configure basic network settings manually from a registered DP722/DP730 Handsets. In order to configure the network settings manually, please follow the steps below:

1. Press Menu to bring up operation menu.
2. Use arrow keys to reach Settings and access Network Settings menu.
3. Enter the system PIN code (default: 0000) and press the softkey “Done”.
4. To change to static IP, press ⯇ or ⯈ to select Static from the IP Settings field.
5. Enter valid values in the IP Address, Subnet Mask, Gateway, DNS Server fields.
6. Press softkey “Save” to save and apply the new changes.
   Note: A prompt message will be displayed to confirm that the new settings are saved successfully
7. The DP722/DP730 will display a reboot confirmation message, select “Yes” to apply the new settings or “No” to avoid rebooting the DP752.

Change Menu and LCD Timeout

1. Press Menu to bring up operation menu.
2. Use arrow keys to reach Settings .
3. Navigate to Display, and then press “Select” (left softkey).
4. Set desired time in seconds for Backlight timeout and for Menu timeout. Available value: 15 seconds, 30 seconds, 60 seconds or disabled. (Default is 30 seconds)
5. Press Save (left softkey) to save and apply the new settings.

Return to Idle Screen

Press the Power Key to quickly exit the menu and return back to the main idle screen.

If you do not press any key in a period of time, the LCD screen will automatically exit the menu and return to the idle screen as well.

When you are navigating on the handset’s menu, and you receive an incoming call, the LCD screen will automatically exit the menu and you can either accept or reject the call. When the call is terminated, the LCD screen will return back to the idle screen.

Register SIP Account

Register Account via Web User Interface

1. Access the Web GUI of your DP752 using the admin’s username and password.
2. Press Login to access your settings and navigate to Profiles tab and select a profile to use.
   Note: DP752 supports up to 4 profiles. A profile is a set of settings including general settings, network settings, SIP setting, audio setting, call settings and ring tones, etc.
   A profile can be used with different SIP accounts.
3. In General Settings, set the following:
   • Profile Active to Yes.
   • SIP Server field with your SIP server IP address or FQDN.
   • Failover SIP Server with your Failover SIP Server IP address or FQDN. Leave empty if not available.
   • Prefer Primary SIP Server to No or Yes depending on your configuration. Set to No if no Failover SIP Server is defined. If “Yes”, account will register to Primary SIP Server when failover registration expires.
   • Outbound Proxy with your Outbound Proxy IP Address or FQDN. Leave empty if not available.
4. Press Save and Apply to save your configuration.

5. Go to DECT 🡪SIP Account Settings

6. Configure your SIP details in desired account:

• Account: Select Account row to configure (Account 1 – Account 10).
• SIP User ID: User account information, provided by VoIP service provider (ITSP). Usually in the form of digit similar to phone number or actually a phone number.
• Authenticate ID: SIP service subscriber’s Authenticate ID used for authentication. Can be identical to or different from SIP User ID.
• Password: SIP service subscriber’s account password to register to SIP server of ITSP. For security reasons, the password will field will be shown as empty.
• Name: Any name to identify this specific user.
• Profile: Select the corresponding Profile ID (1/2/3/4).
• HS Mode: Assign the account to specific Handsets (HS1, HS2…) or hunting group mode.
• Active: Set to Yes. If set to No, account is disabled and will not register.

7. Press Save and Apply to save your configuration.

After applying your configuration, your phone will register to your SIP Server.

You can verify if your DECT phone has registered with your SIP server from your DP752 web interface under Status 🡪 Account Status (a green background with Yes under SIP Registration column for corresponding account indicates the account(s) has been successfully registered).

PHONE SETTINGS

This chapter will help you with the instruction for configuring and changing the settings of your DP722/DP730,

Editing the Handset Name

The procedure to change the handset name is as follows:

• Using DP722/DP730 Handsets:

1. Press Menu to bring up operation menu.
2. Use arrow keys to reach Settings .
3. Navigate to select Handsets Name, and then press “Select”.
4. Enter the desired name and press “Rename” and then the DP722/DP730 will display a confirmation message that the rename operation was successful.

• Using DP752 Base Station UI:

1. Access DP752 Web Interface.
2. Go to DECT 🡪 General Settings.
3. In “Handsets Settings” section, change Handsets Name to desired name.

Changing the Base PIN Code

Users can change their code PIN by following the steps below:

• Using DP722/DP730 Handsets:

1. Press Menu to bring up operation menu.
2. Use arrow keys to reach Settings .
3. Navigate to select System Settings, and then press “Select”.
4. Enter the current code PIN (By Default is 0000), a new window will be displayed inviting you to enter the new password, when done press “Save” (left softkey) and a prompt message will be displayed to confirm that the new code PIN has been saved successfully.

• Using DP752 Base Station UI:

1. Access DP752 Web interface.
2. Go to DECT 🡪 General Settings.
3. Set new PIN code in Admin PIN Code field.

Note: Only digits accepted. Minimum allowed length is 4 digits.

Selecting Phone Language

The DP722/DP730 supports displaying texts in different languages. The handsets supports 20 languages (see the table of the technical specifications). The default language of the handsets is English. You can change the language according to your requirement. To change the language of the handsets, please proceed as follows:

1. Press Menu (left softkey or the selection key) to bring up operation menu.
2. Use arrow keys to reach Settings .
3. Navigate to select Phone language, then select the desired language and press “Select” (Left softkey). The LCD screen prompts “Change phone language to xxx (xxx it’ the language you selected)”
4. Press “Yes” (left softkey) to accept the change. Text displayed on the handsets will change to the selected language.

Activate/Deactivate Hands-Free Mode

This function allows you to make a call without having to hold the handsets in your hand.

1. Press the Hands-free key while you are making a call or on the idle screen to activate hands free mode.
2. Press the Hands-free key again to deactivate the hands-free function.

Muting the Microphone

Press the Mute key to switch off the microphone during an established call. You can now talk freely without the other party hearing you and the icon of mute will be displayed on the screen. Press the Mute key again to switch the microphone back on.

Adjusting Speaker and Earpiece Volume

Press left key ⯇ or right key ⯈ while you are on an established call to set the volume of the earphone / speaker. You can choose between 5 different levels. The default level is 3:

Volume 1 Volume 4

Volume 2 Volume 5

Volume 3

Ringtones

Setting the Ringer Volume on the Handsets

You can adjust the ringer volume for an incoming call to one of 6 levels (level 1 to 5 and off). Level 5 is the highest level. (The DP722/DP730 Handsets are set to level 3 by default).

In order to configure the desired ringer volume, proceed as follows:

1. Press Menu to bring up operation menu.
2. Use arrow keys to reach Settings .
3. Navigate to select Audio (For DP722) and Audio & Vibration (for DP730) 🡪 Volume.
4. Press the left and right arrow keys to change repeatedly and set the desired volume.
5. Press “Save” to confirm the volume, and a message prompt will be displayed to confirm that the new volume has been successfully saved.

If you select OFF, the icon appears in the display and the handsets will not ring for incoming calls.

Setting Ringtones on the Handsets

You can change the ringtone for an incoming call. The device has 9 different ringer melodies for you to choose from (System Ring, Ring 1-8). The default setting for the ring tone for a call is melody 1.

In order to configure the desired melody, proceed as follows:

1. Press Menu (left softkey or the selection key) to bring up operation menu.
2. Use arrow keys to reach Settings .
3. Navigate to select Audio 🡪 Ringtones.
4. Press “Select” (left softkey) to confirm the ringtones selected and a message prompt will be displayed

to confirm that the new ringtones has been set successfully.

Advisory Tones

Advisory tones are acoustic signals, which inform you of different actions and states on your handsets. The following advisory tones can be configured independently of each other:

• Keypad tone: it’s played when a user presses any key of the keypad (even during calls).
• Confirmation: it’s played when a user saves settings or places the handsets in the charger cradle.
• Low battery: it’s played if the capacity of the batteries is low or the handsets requires charging.

To configure the advisory tones

1. Press Menu (left softkey or the selection key) to bring up operation menu.
2. Use arrow keys to reach Settings .
3. Navigate to select Audio 🡪 Advisory tones, and choose which tone you want to change it.
4. Press the left and right arrow keys to either enable or disable the desired tones.
5. Press “Save” (left softkey) to confirm, and a message prompt will be displayed to confirm that the new settings has been successfully saved.

Ringtones Customization

DP752/730/722 allow users to use custom ringtones. Custom ringtones will be stored on DP752 base station and only selected custom ringtone will be downloaded to specific DP722/DP730 handsets.

DP752 base station supports up to 10 custom ringtones.

Custom ringtone should be generated using GS Ringtone Tool and named ring[1-10].bin (example: ring1.bin , ring6.bin).

To use custom ringtones, follow below steps:

Step 1: Generate Custom Ringtone(s)

1. Download “Ringtone Generator” tool available at http://www.grandstream.com/support/tools
2. Run the tool and select your ringtone file to convert.

3. Press “Generate Ringfile” to finish the process. Ringtone with filename “ring1.bin” will be created at same location as ringtone tool.

Step 2: Download Custom Ringtone(s) to DP752 Base Station

1. Make generated ringtone files available in your FTP, HTTP or HTTPS server.
2. Access DP752 Web GUI and go Maintenance 🡪 Firmware Upgrade page.
3. Set “Upgrade Via” to HTTP/HTTPS or FTP/FTPS (depending on server type hosting ringtone files).
4. Set “Firmware Server Path” to IP address or the FQDN of the server.
5. Set “Firmware Upgrade and Provisioning” to “Always Check for New Firmware”.
6. Update the change by clicking the “Save and Apply” button. Then “Reboot” or power cycle the base station to download the ringtone(s).

Step 3: Assigning a Custom Ringtone for a DP722/DP730 Handsets

1. Access DP752 Web GUI and go DECT 🡪 HS Settings 🡪 HS# Settings page.
2. In Custom Ringtone, select a custom ringtone from the dropdown list.
   Note: If the list is not showing downloaded custom ringtone(s), press and check again.
3. Press “Save and Apply”. DP722/DP730 handsets will download the ringtone locally before using it. (DP722/DP730 LCD screen will display download progress at this stage).
4. On DP722/DP730 Handsets menu, access Settings 🡪 Audio 🡪 Ringtones. Select Custom Ringtone using up/down arrow keys and press “Select” softkey.

Date and Time

On the DP722/DP730, the Date and time are displayed on the idle screen and it obtains the date and time from the Simple Network Time Protocol (SNTP) server by default. If your handsets cannot obtain the date and time from the SNTP server, you need to configure the date and time manually. You can configure the time format and date format respectively. The handsets supports two formats for time (12 Hour or 24 Hour) and three date formats (DD/MM/YYYY; MM/DD/YYYY; YYYY/MM/DD).

To configure date and time manually

1. Press Menu to bring up operation menu.
2. Use arrow keys to reach Settings .
3. Navigate to Date and time. Edit the current values in the Date & Time fields (you can change the date / time format using the left key ⯇ or right key ⯈ and press “Set”.
4. Press “Save” softkey to apply your changes.

Gestures (DP730 only)

To configure Gesture options, follow instructions below:

1. On DP730 LCD Menu Settings, select Settings 🡪 Gestures.
2. Set “Close-to-Ear Backlight” to On, to enable the LCD backlight when the handset is close to ear.
3. Set “Facedown Hangup” to On, to enable the call hangup when the handset is put down on its face.

Facedown Hangup

If “Facedown Hangup” option is set to ON, if DP730 is placed face down it will:

• Reject incoming calls.
• Hang up ongoing call.

Close-to-Ear Backlight

Factory Functions

The factory functions include the following diagnostic options:

• Keypad Diagnostic (on DP730) / Diagnostic Mode (on DP722)
• Audio loopback
• LCD on / off
• LCD diagnostic
• System Monitoring
• Vibration (DP730 only)
• Acceleration Sensor (DP730 only)
• Proximity sensor (DP730 only)

1. Press Menu (left softkey or the selection key) to bring up operation menu.
2. Use arrow keys to reach Settings .
3. Navigate to select Factory Functions and choose which diagnostic, you need to perform:
   1. Diagnostic Mode (DP722) / Keypad Diagnostic (DP730)
      All LEDs will light up. All keys’ name will display in red on LCD screen before diagnosing. Press any key on the keypad to diagnose the key’s function. When done, the key’s name will display in blue on LCD with a prompt message (PASS). To exit press “Back” (right softkey).
      Note: Long arrow UP key at any time to exit diagnostic mode.
   2. Audio loopback: Speak to the phone using speaker/handsets/headset. If you can hear your voice, your audio is working fine. Press “Back” (left softkey) to exit audio loopback mode.
   3. LCD ON / OFF: Selects this option to turn off LCD. Press any button to turn on LCD.
   4. LCD Diagnostic: Enters this option and press Left/Right arrow key to do LCD Diagnostic (you will notice that the color of the LCD will be changing). Press right softkey to quit.
   5. System Monitoring: Displays RSSI, battery voltage and RPN information.
   6. Vibration (DP730 only): Press “Vibrate” key to test if device vibrates normally. Press right softkey to quit.
   7. Acceleration Sensor (DP730 only): Displays X, Y, Z coordinates. Change handset position and check new values. Press right softkey to quit.
   8. Proximity Sensor (DP730 only): Cover the proximity sensor, when the sensor is covered, the gray dot displayed on screen will become green. Press right softkey to quit.

DP722/DP730 Handsets Firmware Upgrade

The DP722/DP730 handsets can detect if a new firmware is available when it is registered to a base station.

To upgrade the firmware on your handsets, follow the steps below:

1. Press Menu to bring up operation menu.
2. Use arrow keys to reach Settings .
3. Navigate to select Firmware Upgrade and press the softkey “Select”.
4. The LCD screen will display a prompt message to confirm the firmware downloading / upgrading press the right softkey “Back” to dismiss the upgrade process.

Reboot DP752 Base Station

1. Press Menu to bring up operation menu.
2. Use arrow keys to reach Settings .
3. Navigate to select Settings 🡪 System Settings and choose Reboot Base.
4. Enter Base PIN code (by default the PIN code is: 0000).
5. The LCD screen will display a prompt message to confirm rebooting the base station, press “Yes” (left softkey) to confirm or press “No” (right softkey) to cancel.

Reset DP722/DP730 Handsets

The users can reset the new settings made on the handsets after performing factory reset. To reset your handsets to the default settings:

1. Press Menu to bring up operation menu.
2. Use arrow keys to reach Settings .
3. Navigate to select Settings 🡪 System Settings and choose Factory Reset.
4. The LCD screen will display a prompt message to confirm restoring factory settings, press “Yes” (left softkey) to confirm and then the handsets will reboot to apply the default settings or press “No” (right softkey) to cancel.

CALL OPERATIONS

Outgoing Default Line

When a Handsets is configured with more than one line, users can change the default outgoing line on DP730/DP722 handset using keypad Menu 🡪 Preferences 🡪 Outgoing Default Line.

Placing calls

To place calls, you can use the following mode:

• Earpiece mode: pressing the off-hook key to dial out.
• Speakerphone mode: pressing the speakerphone key to dial out.
• Headset mode: pressing the off-hook key to dial out using connected headset.

During the call, you can switch the call mode by pressing the corresponding keys or connecting a headset.

Make a Call using a Line

Making calls require the use of SIP lines. So, you should first register the SIP account to the handsets beforehand, after registering the SIP lines, you can assign one or more outgoing lines for the handsets. The handsets can only use the assigned outgoing line(s) to place calls.

Please refer to the following methods to make calls using a line:

Method 1:

• Via default outgoing line:

1. Enter the desired number using the keypad.
2. Press Dial key or Speaker key . The handsets will use the default outgoing line to dial out.
3. To terminate the call, press Hang-Up key .

Note: To change the default outgoing line, please refer to [Outgoing Default Line].

• Selecting the outgoing line:

1. Enter the desired number using the keypad.
2. Press the left softkey “Call”.
3. Select the desired line to dial out.
4. To terminate the call, press Hang-Up key .

Method 2:

1. Press Dial key or Speaker key to enter the pre- dialing screen.
2. Enter the number to dial using the keypad.
3. Press Dial key , # key (“Use # as dial key” must be configured in web configuration) or wait for 4 seconds and the call will be initiated automatically.
4. To terminate the call, press Hang-Up key .

During the call, you can switch the call mode by pressing the corresponding keys and cancel the dialing operation by pressing the on-hook key. During the call conversations, you can press the left and right navigation keys to adjust the volume. The call duration is displayed on the LCD screen while the call is in progress and call summary will be displayed once the call is terminated.

Dialing from Call history

Users may use their call history entries to initiate calls.

1. Press Menu to bring up operation menu.
2. Use arrow keys to reach Call History Icon and then press “Select”.
3. Select the desired entry, then press Dial key to establish the call.

Note: In step 3, users can press “Options” softkey followed by “Edit Dial” option to initiate the call.

The call history list stores the last dialed phone numbers. When the memory of the redial number list is full, the handsets will automatically erase the oldest dialed number when a new number is dialed

Dialing from Phonebook

Users may use their private or shared contacts to initiate calls.

1. Press Menu to bring up operation menu.
2. Press Contacts to access phonebook menu.
3. Select the contact to call.
4. Press Dial Key to initiate the call.

Note: In step 4, users can press “Options” softkey followed by “Edit Dial” option to initiate the call.

Intercommunication

Users may make phone calls between different handsets directly without remembering each user’s phone number.

1. Go to Handset GUI -> Shortcut
2. Configure a navigation key (up, down, left or right key) to “Intercom”.
3. Press the key just configured at the idle state.
4. Choose the handset name that you want to call.

Answering Calls

When receiving an incoming call, you can answer the call using following steps:

• Earpiece mode:

Press Dial Key to pick up the call, or “Accept” softkey (left softkey).

• Speakerphone mode:

Press Speaker Key to pick up the call.

• Headset mode:

Press Dial Key to pick up the call, or “Accept” softkey using a connected headset.

Auto Answer

Users can enable Auto Answer feature to accept and automatically answer incoming calls.

If enabled, DP722/DP730 Handsets will automatically answer incoming calls using speaker mode.

To activate / deactivate the auto answer feature:

• Using DP722/DP730 Handsets Menu
  1. Press Menu to bring up operation menu.
  2. Select Preferences 🡪 navigate to Auto Answer using the up/down arrow keys.
  3. Switch between Enabled/Disabled using left/right arrow keys and “Save” after Enabling / Disabling the option.

• Using DP752 Base Station Web Interface
  1. Access DP752 Base Station Web Interface.
  2. Go to DECT 🡪 Handsets Settings 🡪 HS# Settings.
  3. Set “Enable Auto Answer” to “Yes”. (By default, set to “No”).

Off-Cradle Pickup

Users can enable Off-Cradle Pickup feature to automatically answer incoming calls after picking up DP722/DP730 Handsets from its cradle. Incoming calls will be automatically answered using earpiece mode.

To activate / deactivate the off-cradle pickup:

• Using DP722/DP730 Handsets Menu
  1. Press Menu to bring up operation menu.
  2. Select Preferences 🡪 navigate to Off-Cradle Pickup using the up/down arrow keys.
  3. Switch between Enabled/Disabled using left/right arrow keys and “Save” after Enabling / Disabling the option.

• Using DP752 Base Station Web Interface
  1. Access DP752 Base Station Web Interface.
  2. Go to DECT 🡪 Handsets Settings 🡪 HS# Settings.
  3. Set “Enable Onhook on Cradle Reposition” to “Yes”. (By default, set to “No”).

Ending Calls

To terminate the calls, press Hang-Up key .

On-Cradle Hang-up

Users can enable On-Cradle Hang-up feature to automatically end ongoing calls after placing DP722/DP730 Handsets on its cradle.

To activate / deactivate the on-cradle hang-up feature:

• Using DP722/DP730 Handsets Menu
  1. Press Menu to bring up operation menu.
  2. Select Preferences 🡪 navigate to On-Cradle Hang-up using the up/down arrow keys.
  3. Switch between Enabled/Disabled using left/right arrow keys and “Save” after Enabling / Disabling the option.

• Using DP752 Base Station Web Interface
  1. Access DP752 Base Station Web Interface.
  2. Go to DECT 🡪 Handsets Settings 🡪 HS# Settings.
  3. Set “Enable Off hook on Cradle Pickup” to “Yes”. (By default, set to “No”).

Rejecting Calls

To reject an incoming call, press Hang-Up key or “Reject” softkey (right softkey)

Direct IP Call

Direct IP calling allows two parties, that is, a handsets and another VoIP device, to talk to each other in an ad hoc fashion without a SIP proxy.

Elements necessary to complete a Direct IP Call:

• Both DP722/DP730 and other VoIP Device, have public IP addresses, or
• Both DP722/DP730 and other VoIP Device are on the same LAN using private IP addresses, or
• Both DP722/DP730 and other VoIP Device can be connected through a router using public or private IP addresses (with necessary port forwarding or DMZ).

Users can perform IP calls using Star code following the below steps:

1. Pick up the handsets and press Dial key .
2. Dial *47 followed by the target IP Address.

Examples of direct IP calls

1. If the target IP address is 192.168.0.160, the dialing convention is *47 then 192*168*0*160, followed by pressing the “#” key if it is configured as a send key or wait 4 seconds. In this case, the default destination port 5060 is used if no port is specified.
2. If the target IP address/port is 192.168.1.20:5062, then the dialing convention would be: *47 or Voice Prompt with option 47, then 192*168*0*160*5062 followed by pressing the “#” key if it is configured as a send key or wait for 4 seconds.

Call Hold/Resume

During an established call, you can put the call on hold and resume following below steps:

1. Press the left softkey to access the call Options and then navigate to Hold.
2. Press “Select”, left softkey to put the call on hold.
3. To resume the call, access the options menu again and navigate to Resume, then press Select.

Or you can press the softkey Hold to hold the call and Resume to resume it.

Call Waiting

This feature will notify you of a new incoming call during an established call and display the incoming call information visually on the LCD screen and a call waiting tone will be heard. If this feature is disabled, the new incoming call will be automatically rejected.

There are 2 ways to activate call waiting feature either using DP722/DP730 Handsets Menu or using DP752 Base Station Web Interface.

• Using DP722/DP730 Handsets Menu
  1. Press Menu to bring up operation menu.
  2. Use arrow keys to reach Call Features 🡪 navigate to Call waiting sub-menu.
  3. Select the account for which you want to enable the Call waiting feature, and then press left softkey “Select”.
  4. Choose between Enabled and Disabled options and press the softkey “Save”, a prompt message will be displayed to confirm that the call waiting is enabled / disabled.
  5. During an established call, press (dial key) to put first call on hold and answers second incoming call. If no second incoming call, pressing will give the ability to initiate another call while first one is on hold.

• Using DP752 Base Station Web Interface
  1. Access DP752 Base Station Web Interface.
  2. Go to DECT 🡪 Handsets Settings 🡪 HS# Settings.
  3. Set “Disable Call Waiting Tone” to “No”. (Default is No).
  4. Press “Save and Apply” button to confirm.

Do Not Disturb

You can activate or deactivate the DND mode for your accounts registered on the handsets under the call settings. If DND mode is activated for a specific line, all incoming calls will receive busy treatment depending on your configuration (forward to voice mail, busy tone…)

To enable or disable the DND mode, follow the next steps

1. Press Menu to bring up operation menu.
2. Use arrow keys to reach Call Features 🡪 navigate to Do Not Disturb sub-menu.
3. Select the account on which you want to enable / disable the DND mode and then press “Select”
4. Choose between Enabled and Disabled options and press softkey “Save” to accept the changes, a prompt message will be displayed to confirm that the DND is enabled / disabled.

You can navigate to Status 🡪 Line status to check if the DND mode is enabled on the base station.

You can also navigate via web interface of DP752 🡪 Status 🡪 Line Options.

Call Forward

The call forward feature will allow you to forward all the incoming calls to the desired number. Three possible call forward types are available on the DP722/DP730.

• Forward all Dest: All the incoming calls are immediately forwarded.
• Forward Busy Dest: Incoming calls are immediately forwarded if the line is busy.
• Forward No Answer Dest: Incoming calls are forwarded if not answered after a period of time.

To enable the call forward, please refer to the following steps:

1. Press Menu to bring up operation menu.
2. Use arrow keys to reach Call Features 🡪 navigate to Call Forward sub-menu.
3. Select the account on which you want to enable/disable the call forward feature and press “Select”.
4. Select the type of call forwarding and enter the number to forward the calls, and then press “Save” (left softkey) to apply the settings, a prompt message will be displayed to confirm that the new settings have been saved successfully.

Paging

The DP722/DP730 supports paging other handsets internally without having any sip Account registered. Similarly to the base station paging button, Inter-Handsets paging features enables handsets to ring other handsets. The feature can be enabled from LCD menu 🡪 Call Features 🡪 paging.

Call Transfer

The DP722/DP730 supports the Call Transfer feature, you can transfer a call to another party using one of the following ways:

• Blind transfer: Transfer a call directly to another party without consulting
• Attended transfer: Transfer a call with prior consulting.

Blind Transfer

1. Press the “Options” softkey during a call, and then select Blind Transfer, or press the softkey Transfer for DP730.

2. The initial call will be on hold, enter the number you want to transfer the call to.

3. Press Dial key . The call is connected to the number or the handsets you specified, and the LCD screen prompts Call Transferred.

Attended Transfer

1. Press Left softkey “Options” during a call, and then select Attended Transfer.

2. Enter the number you want to transfer the call to, then press Dial key or press Call Softkey.

3. Once the second call is established, press left softkey Transfer to finish the Attended transfer.

Transfer between handsets

The Call Transfers can also be done between handsets without SIP account. The DP75x can transfer a call to another handset even if it has no SIP account registered.

Speed Dial

Speed dial allows users to perform single-digit dialing to predefined numbers. This feature is particularly useful to speed up dialing frequently used or hard to remember numbers. A maximum of 8 speed dial numbers is allowed.

For example, the digit key 2 is configured as a speed dial key and assigned the number 2000, the phone will dial out the number 2000 directly when you long press digit key 2.

• To assign the frequently used numbers as speed dial keys:

1. Press Menu to bring up operation menu.
2. Access to Shortcut and then use Arrow keys to reach Speed Dial sub-menu.

Or;

Long press the representative number from 2 to 9 to set. (Note: The Speed dial number should not be already set on chosen representative number, otherwise long press will initiate a call to configured speed dial number).

1. Choose the digit key (2-9) to set and press Options or OK button. Three options will be available:

• Edit: To configure manually a contact as speed dial. Users need to enter “First Name”, “Last Name” and “Number”. (Note: First Name + Number or Last Name + Number are accepted).
• From Contacts: To set a contact from the phonebook directory to be as speed dial.
• To Modify a Speed Dial:

Repeat above 2 steps.

At step 2, re-edit /re-assign a contact from the shared or private directory as speed dial on selected key.

• To Delete a Speed Dial:

Repeat above 2 steps.

At step 2, select Clear Entry option and press OK or Select to confirm.

3-Way Conference

The DP722/DP730 supports creating a local conference with other parties (including handsets starting the conference).

To start a 3 Way conference, follow below steps:

1. Press the Dial key to place a call to the first party.
2. Press left softkey “Options”, then select Conference.
3. Enter second party number you want to add to the conference and press Dial Key .

To drop the conference call, press or “End” softkey.

Voice Mail

The voice mail feature ensures that you will never miss any important messages. It permits either to leave voice mails to someone else or receive and listen to voice mails via the handsets

Set Voice Mail Feature Code

There are 2 ways to set Voice Mail Feature Code, either using DP722/DP730 Handsets Menu or using DP752 Base Station Web Interface.

Note: The Voice Mail Feature Code depends on the service provider or IP-PBX used. For example, if UCM6xxx as SIP server, the Voice Mail Feature Code is *97.

• Using DP722/DP730 Handsets Menu
  1. Press Menu (left softkey or the selection key) to bring up operation menu.
  2. Access to Voice Mail and then select Set Voice Mail sub menu.
  3. Select the account and enter the “VM Access Number”, then press “Save” softkey.

• Using DP752 Base Station Web Interface
  1. Access DP752 Base Station Web Interface.
  2. Go to Profiles 🡪 Profile X 🡪 General Settings.
  3. Configure Voice Mail Access Number.

Play Voice Mail Messages

1. Press “Menu” to bring up operation menu.
2. Access to Voice Mail and then select Play Message sub menu.
3. Select the account to retrieve your voice messages saved on your voice mail.

Or;

Long press digit “1” key to dial configured Voice Mail feature code using Default Line.

PTT (Push-To-Talk)

The DP730/DP722 support the Push to talk (PTT) features which is a technology based on the instantaneous communication commonly employed in wireless cellular phone services using a button to switch the device from voice transmission mode to voice reception mode. This feature is similar to “walkie talkie” used and the PTT mode switches a phone from full duplex mode, where both parties can hear each other simultaneously, to half duplex mode, where only one party can speak at one time. Multiple parties to the conversation may also be included.

1. Users could press and hold the Push-to-talk key from any screen to quickly initiate PTT call.

2. Available handsets (subscribed to the same base station) will receive the PTT call.

3. Keep holding PTT key while speaking.
The channel status will change to Sending PTT to indicate that you are transmitting as displayed on the following screenshot.

To terminate PTT call, press button.

Configuration:

PTT feature is always enabled on the base station, to use this feature, users need to enable the PTT on handset at: Handset Menu -> Preferences -> PTT -> set “Enabled”.

Also, to use PTT, the DP722 needs a dedicated button to push and then to talk, user can choose to use either LSK (Left Softkey) or RSK (Right Softkey) in Shortcuts settings. (If you forgot to enable the PTT, when you press the PTT softkey, it will redirect you to the setting to enable it before you can use it.)

Users can configure “DECT PTT Silence Timer” on the Web UI at -> DECT -> General Settings. When a PTT call established, any handset who enabled PTT feature will automatically join the PTT call. if there is no one talking, after certain time, the PTT call will be closed. This timeout setting is to determine how long the PTT call will be closed after being idle status. If set to 0, the timer will be disabled, and the PTT will be remaining forever until all party exit the PTT call.

Call Features

The DP752/DP722/DP730 supports traditional and advanced telephony features including caller ID, caller ID with caller Name, call forward and etc.

*30	Block Caller ID (for all subsequent calls) Off hook the phone; Dial *30.
*31	Send Caller ID (for all subsequent calls) Off hook the phone; Dial *31.
*67	Call with Caller ID Blocked (per call) Off hook the phone; Dial *67 and then enter the number to dial out.
*82	Call with Caller ID Enabled (per call) Off hook the phone; Dial *82 and then enter the number to dial out.
*72	Unconditional Call Forward. To set up unconditional call forward: Off hook the phone; Dial *72 and then enter the number to forward the call; Press OK softkey or SEND key.
*73	Cancel Unconditional Call Forward. To cancel the unconditional call forward: Off hook the phone; Dial *73; Hang up the call.
*90	Busy Call Forward. To set up busy call forward: Off hook the phone; Dial *90 and then enter the number to forward the call; Press OK softkey or SEND key.
*91	Cancel Busy Call Forward. To cancel the busy call forward: Off hook the phone; Dial *91; Hang up the call.
*92	Delayed Call Forward. To set up delayed call forward: Off hook the phone; Dial *92 and then enter the number to forward the call; Press OK softkey or SEND key.
*93	Cancel Delayed Call Forward. To cancel the delayed call forward: Off hook the phone; Dial *93; Hang up the call.

RESTORE FACTORY DEFAULT SETTINGS

Please follow the instructions below to reset the phone:

1. Press MENU button to bring up the keypad configuration menu;
2. Select Settings and enter;
3. Select System Settings 🡪 Factory Reset;
4. A warning window will pop out to make sure a reset is requested and confirmed;
5. Press Yes softkey to confirm and the phone will reboot.
6. To cancel the Reset, press No softkey instead.

Users also can perform factory reset using combo keys on DP722/DP730 during booting up prior it’s fully booted, to give DP722/DP730 the ability to recover from some extreme cases like self-reboot or stuck right after booted up.

Please refer to following procedure for DP722/DP730 factory reset using combo key:

1. Connect the USB cable and power off DP722/DP730.
2. Power on DP722/DP730 and wait for Green LED.
3. Press 3 times Central Key (OK/Selection Key) quickly after Green LED on.
4. Press Speaker Key (left bottom) first and then Mute Key (right bottom) after Red LED on.
5. DP722/DP730 LED will start blinking in 3 colors: Green, Red and Orange if factory reset successful triggered.
6. Wait for about 1-3 minutes, the DP722/DP730 will boot up with setup wizard for initial language and date format settings.

CHANGE LOG

This section documents significant changes from previous versions of user guide for DP752/DP722/DP730. Only major new features or major document updates are listed here. Minor updates for corrections or editing are not documented here.

Firmware Version 1.0.21.4

• No Major changes

Firmware Version 1.0.21.2

• No Major changes.

Firmware Version 1.0.19.8

• No Major changes.

Firmware Version 1.0.19.6

• No Major changes.

Firmware Version 1.0.19.5

• No major changes.

Firmware Version 1.0.19.4

• No major changes.

Firmware Version 1.0.19.3

• No Major changes.

Firmware Version 1.0.19.2

• Added option to use # as Redial key. [Redial key]

Firmware Version 1.0.17.8

• No Major changes.

Firmware Version 1.0.17.4

• No major changes.

Firmware Version 1.0.17.3

• Added ability to manage 3-way conference from handset. [3-way conference]

Firmware Version 1.0.17.1

• No major changes.

Firmware Version 1.0.15.15

• No major changes.

Firmware Version 1.0.15.6

• No major changes.

Firmware Version 1.0.15.3

• No major changes

Firmware Version 1.0.15.2

• Add support to input provisioning server username and password on handset UI when base station is trying to download a config file from a password protected server.
• Added support to delete a paired base station from the handset.

Firmware Version 1.0.13.8

• Added support for handsets to internally page other handsets without accounts registered. [Paging][Call Features]
• Updated the CPE to 1.0.1.141 to better support GDMS.

Firmware Version 1.0.13.0

• No major changes

Firmware Version 1.0.11.12

• Added support for intercom feature without SIP account. [Intercommunication]
• Added support for transfer between HS internally without SIP. [Transfer between handsets]
• Add handset option for blind transfer and attended transfer. [Call Transfer]

Firmware Version 1.0.11.4

• No major changes

Firmware Version 1.0.11.2

• Added Chile time zone.

Firmware Version 1.0.9.9

• No major changes.

Firmware Version 1.0.9.1

• Added support for Intercom feature. [Intercommunication]

Firmware Version 1.0.7.5

• This is the initial version for DP752/DP730/DP722.