Connects to GRP2615 Carrier-Grade IP Phone, GRP 2624 Professional IP Phone
and GXV3350 Video IP Phone
40 extensions per module with 2 page swtich keys (20 per page)
Daisy chain up to 4 models for a total of 160 extensions
4.3 inch (272×480) TFT color LCD
Local GUI: Multiple line/call appearances