Thank you for purchasing Grandstream GRP26XX Carrier-Grade IP Phones. The GRP26xx Professional Carrier-Grade IP Phones offer top-notch HD audio quality...

Overview All Grandstream products’ firmware are improved and updated on a regular basis. Latest firmware versions are available in http://www.grandstream.com/support/firmware...

Grandstream GRP26xx Carrier-Grade IP Phones, support multiple display languages for better user experience using Grandstream products. Users can change the...