The main performance? With incoming and outgoing calls to answer voice channel switching function of the headset;? Chinese menu 128 × 64 dot matrix LCD with backlight LCD display;? Available in English and receive SMS, access, edit, send function;? Contacts function, can store telephone numbers and names can be found in and directly allocated;? with Caller ID, call record (call history, missed records to electronic records);? with wireless networks and fixed-line network to answer calls feature to support the Calling Number Display and Call Routing tips. ? With automatic routing based on number, select the wireless network and fixed network dial phone. ? Support switch access users as fixed line extension applications. ? With SMS, clock, phone book, call history, polyphonic ring music and other functions. ? LCD display - 128 * 64 dot matrix LCD, Chinese menu, with backlight. ? Sensitivity - antenna signal strength with signal strength display, support for internal, external, car antenna. ? A breath restriction, call waiting, call forwarding, call timer function. ? Support multiple wireless network call forwarding function. ? With hands-free or handle dial-up, call, call volume adjustment function, a redial, flash, chasing dial function? A lock card, lock machine, machine card interlock, lock network lock position function. ? Via the serial port or wireless remote network management software to upgrade the product features or set parameters change. ? High-capacity rechargeable backup battery, with battery power display, in case of power failure 50 hours standby time (with the conditions of the local network)