Equip any desktop with superior call control, network visibility and in-call flexibility. The GXP2200EXT extension module provides greater network control for high-call volume users with its backlit LCD display, BLF and Speed Dial keys and additional contacts/extensions per module. Supported by the GXP2140, GXP2170 and GXV3240. The GXP2200 Extension module is the ideal choice for providing powerful call control and flexibility to any user. The module itself boasts an intuitive and clear design, with 20 dual-colored extension keys and 2 arrow keys for page switching. Each module supports visibility for up to 40 additional contacts and extensions, while also supporting the ability to connect up to 4 GXP2200EXT modules to…. Sold and shipped by A5 IT, an authorized Grandstream partner — with US stock, live pricing, and deployment support for extension modules.