Grandstream GS-GXP2200EXT Expansion Module for VoIP Phone

I'm using this expansion module on a GXP2140. It works very well, is easy to program via the phone's web interface, and is very user friendly.

Great phone. Android apps, like skype work like a charm. Touch screen make configuration even easier in this phone. Extension units work flawlessly.

Works as advertised.

This is the extension expansion Module from Grandsteam that pairs with existing Grandstream GXP2140 phones or GXP2200 phones. This module is a great price for the capabilities. It has 40 lines that are programmable; 20 lines are active at once. This allows you to program 40 extensions for monitoring and transferring calls. Note: that only 20 lines are visible at once; you use the bottom 2 buttons to switch between the active page of 20 lines. Overall great product. I had it configured with the new GXP2140 in around 5 minutes. Works as advertised and provides a needed expansion for operator/switchboard locations.

excellent and easy to program

Beware as of 1/26/16, if you're going to use this with the new Grandstream GXP2170 phones and FreePBX, the 2200 won't light the buttons! They're aware of this but haven't fixed it yet. The GXP2170 phones are beautiful and work great, so they need to fix this so the 2200 can properly integrate with the new phone as of Jan 1. Just trying to save someone the pain I've experienced.

Great product !!

Good seller. Product is just as described.