The GXP2135 is the ideal selection for busy users who value call control, productivity, and usability and manage medium to heavy call volumes. Equipped with 8 lines and 4 SIP accounts, a 2.8-inch color LCD display, and 32 digital speed-dial/BLF keys, the GXP2135 enables quick and powerful usability.

As all Grandstream IP phones do, the GXP2135 features state-of-the-art security encryption technology (SRTP and TLS). The GXP2135 supports a variety of automated provisioning options, including zero-configuration with Grandstream’s UCM series IP PBXs, encrypted XML files and TR-069, to make mass deployment extremely easy.


– 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

– Supports EHS compatible Plantronics headsets

– 4-way audio conferencing for easy conference calls