Grandstream's GBX20 expansion module delivers additional functionality, versatility and flexibility to the Grandstream GRP2615 IP Phone or GXV3350 Video Phone.
By using the GBX20 your receptionist can ensure maximum office productivity by efficiently monitoring and dispatching multiple incoming calls. The GBX20 expansion module is the ideal solution for offices that manage high call volumes, providing powerful call control and flexibility to Grandstream's new GRP2615 series IP phone.
The GBX20 features a large 480x272 graphic LCD and 20 programmable buttons (each with dual colour LED). It allows up to 40 extensions per module by using the 2 page switch keys and up to 160 buttons when 4 extension modules are daisy-chained together. The GBX20 module is connected, powered, and controlled by the GRP2615/GXV3350, providing the benefits of the additional keys instantly.
The GBX20 supports the traditional call features on each of its programmable buttons, including BLA (bridged line appearance)/SCA (shared call appearance), BLF (busy lamp field, standard or event-list), Call Park/Pick-up, Speed Dial, Presence, Intercom, and conference/transfer/forward.