The GXP1620/25 is a reliable Basic IP phone for the user who requires standard features for a light to medium call volume. Stay in touch with others with its 2 lines/SIP accounts, enjoy crystal clear HD audio and utilize its dual-switched 10/100 mbps ports (with integrated PoE on the GXP1625) for a flexible deployment. Maximize your productivity with essential supported features such as 3-way conferencing and 3 XML programmable soft keys. Together, these featuresmake the GXP1620/25 an easy-to-use and effective Basic IP phone.
As all Grandstream IP phones do, the GXP1620/1625 features state-of-the-art security encryption technology (SRTP and TLS). The GXP1620/1625 supports a variety of automated provisioning options, including zero-configuration with Grandstreams UCM series IP PBXs, encrypted XML files and TR-069, to make mass deployment extremely easy.
- 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 500 contacts, call history up to 200 records
 
-Touchscreen: N
 -Display: LCD
 -Display resolution: 132 x 48 pixels
 -Display diagonal: 7.49 cm (2.95")
 -Backlight display: Y
 
 Audio
 
-Speakerphone: Y
 -Voice codecs: CNG,G.711Mu,G.711a,G.722,G.723,G.726,G.729A,G.729B,VAD,iLBC
 
 Ports & interfaces
 
-Ethernet LAN (RJ-45) ports: 2
 
 Weight & dimensions
 
-Width: 209 mm
 -Depth: 184.5 mm
 -Height: 76.2 mm
 -Weight: 730 g
 -Package weight: 1.1 kg
 
 Power
 
-Power over Ethernet (PoE): Y
 -AC adapter input voltage: 100 - 240
 -Input frequency: 50/60
 -Power consumption (typical): 6.49 W
 
 Operational conditions
 
-Operating temperature (T-T): 0 - 40 °C
 -Operating
Features