Telephones & Accessories | Grandstream Grandstream Gbx20 Lcd Extension Module Black And Grey

Description

A Backlit Lcd Extension Module Supported By The Grp2615, Grp2624, Grp2650, Grp2670 Carrier-Grade Ip Phones As Well As And Gxv3350 And Gxv3450 Ip Video Phones.
•20 Dual-Colored Extension Keys And 2 Arrow Keys For Page Switching (Allowing Each Gbx20 To Support Up To 40 Contacts/Extensions.).
•Connect Up To 4 Gbx20 Modules To Compatible Grandstream Phones For A Total Of 160 Contacts/Extensions.
•Blf, Call Park /Pick-Up, Speed-Dial, Presence, Intercom, Voice Conferencing Transfer/Forward And More.