Expand certain models of Grandstream IP Phones with these extension modules for more LED/Speed dials and BLF (Busy Lamp Forwarding) indicators. Replacement handsets for the GXP21xx series phones are also available here.
The Grandstream GXP2200EXT extension modules allows you to expand functionality on certain IP Phone models.
Design for receptionists, call centers, and executives who need to see what's going on in their office at a quick glance. These extension modules are easy to install / set-up and can be provisioned directly through the phone's web interface, or by using the Zero-Config provisioning through Grandstream's IP-PBX phone systems.