Grandstream GXP2020/GXP2120 EXT Expansion Module

Description This Grandstream expansion module features 56 programmable keys, offering options like busy line appearance, busy lamp field, conference, call transfer and pick up. The module lets you monitor lines and manage high call volumes, ideal for receptionists and busy attendants. For the Grandstream GXP2020, GXP2010, GXP2110 and GXP2120 phones. Documentation Type: paper insert Programmable Keys: 56 LED Indicators: red/green Busy Lamp Fields: supported Speed Dialing: supported Stackable: up to 2 modules