WELCOME The WP856 is a high-end mobile computing device designed for users on the go who need access to reliable...

BASIC OPERATIONS Turning the Handset ON/OFF To turn ON the handset Long press on Power Key until the LCD screen...

WELCOME Thank you for purchasing Grandstream WP820. This powerful Enterprise Portable Wi-Fi Phone features dual-band 802.11a/b/g/n Wi-Fi, supports Wi-Fi roaming,...