Grandstream GBX20 Extension Module for GRP2615 and GXV3350 UP1302C-12 Four parts can easily be

Four parts can easily be assembled after splicing by one-touch push-pull system

3 dedicated Android keys for HOME

output overvoltage

Feed Trough CAT5E 8x8 RJ45 Modular Plug

Grandstream GBX20 Extension Module for GRP2615 and GXV3350 UP1302C-12 Four parts can easily beThe Grandstream GBX20 is an Extension Module that adds functionality, versatility and flexibility to Grandstreams GRP2615 Carrier Grade IP Phone and GXV3350 IP Video Phone. It features a 272x480 LCD display that offers up to 40 contacts per module with support for up to 160 contact s by using 4 modules. The GBX20 supports a wide range of advanced call features including BLF, call park pick up, speed dial, presence, intercom, voice conferencing