Yealink T4 series Expansion Module EXP40 Business Phones replacement headset is the GN

replacement headset is the GN Netcom/Jabra Biz 2300 2003-820-105

Electronic Hook Switch Cable for remote desk phone call control (answer/end)

9224 IP Phones

MANY DESIGNS

Allworx 9212L

Yealink T4 series Expansion Module EXP40 Business Phones replacement headset is the GNExpansion module for the YEA SIP T48G and T46G models Rich visual experience with 160x320 graphic LCD 20 physical keys each with a dual color LED 2 independent control keys are used for fast switch pages Stand with 2 adjustable angles Wall mountable 160x320 graphic LCD with 16 level grayscales LCD Backlight Two page views are possible Different icons for each function shown on the LCD 20 physical keys each with a dual color LED 20 additional keys