Grandstream GBX20 Extension Module for GRP2615 and GXV3350 nic ultra-fast weatherproof switch for all

ultra-fast weatherproof switch for all your outdoor needs

Up to 72 single fusion or 144 mass fused fibers

monitoring and management

the LTU Pro is not impeded by the limitations of standard 802

reversible front perforated door and locking

Grandstream GBX20 Extension Module for GRP2615 and GXV3350 nic ultra-fast weatherproof switch for allThe 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