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
The GXP2135 is the perfect choice for busy individuals who prioritize call control, productivity, and user-friendliness, and handle a medium to heavy volume of calls. With 8 lines and 4 SIP accounts, a 2.8 inch color LCD display, and 32 digital speed dial/BLF keys, the GXP2135 offers quick and efficient usability. Like all Grandstream IP phones, the GXP2135 includes advanced security encryption technology (SRTP and TLS). It also supports various automated provisioning options, such as zero-configuration with Grandstream's UCM series IP PBXs, encrypted XML files, and TR-069, to simplify mass deployment.