
1 SIP account, up to 2 call appearances 
TLS and SRTP security encryption technology to protect calls and accounts 
3-way audio conferencing for easy conference calls 
Automated provisioning options include TR-069 and XML config files 
Full-duplex speakerphone with HD audio to maximize audio quality and clarity 
Use with Grandstream’s UCM series of IP PBXs for Zero Config provisioning

2 SIP accounts, 2 line keys, 3-way conferencing 
3 XML programmable context-sensitive soft keys
Dual-switched 10/100 mbps ports, integrated PoE on GXP1625
HD audio on speakerphone and handset
EHS support for Plantronics headsets
Up to 1000 contacts, call history up to 200 records

Supports 4 lines, 4 SIP accounts and 5-way voice conferencing 
HD audio on speakerphone and handset, 5 programmable context-sensitive soft keys 
Compatible with GXP2200 LCD extension module (GXP2200 EXT) 
4.3 inch (480x272) color-screen LCD 
Dual Gigabit ports, integrated PoE 
Integrated Bluetooth for use with Bluetooth headsets and Bluetooth-enabled mobile devices (transferring contact books and calls), USB, EHS for Plantronics headsets

8 lines, 4 SIP accounts, 4 XML programmable context-sensitive soft keys 
Dual switched, auto-sensing Gigabit ports, built-in PoE 
32 digitally programmable and customizable BLF/speed-dial keys 
Built-in Bluetooth for syncing headsets and mobile devices for contact books, calendars & call transferring 
HD audio on the handset and speakerphone; full duplex speakerphone 
4-way audio conferencing for easy conference calls 

Supports a range of up to 400 meters outdoors and 50 meters indoors when used with the DP752 (300 meters outdoors when used with DP750) 
2.4 inch (240x320) color LCD with 3 programmable soft keys 
Offers 40-hour talk time and 500-hour standby time 
Supports up to 10 SIP accounts and 10 lines per handset as well as 3-way conferencing 
Dedicated push-to-talk button, built-in proximity and accelerometer sensors for gesture control and alert notification 

Supported by Grandstream's DP750 DECT Base Station
Supports a range of 300 meters outdoors and 50 meters indoors from the DP750 base station
Supports up to 10 SIP accounts per handset
Full HD audio on both the speakerphone and handset
3.5mm headset jack, 3-way voice conferencing

Up to 20 SIP accounts per system; up to 20 lines per handset 
DECT authentication & encryption technology to protect calls & account 
3-way audio conferencing for easy conference calls 
Supports Push-to-Talk 
Automated provisioning options include TR-069 and XML config files 
Use with Grandstream’s UCM series of IP PBXs for Zero Config provisioning 
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