1.   Suitable for 900/1800 MHz public mobile telephone network, taking SIM card as wireless interface.

2.   It can be connected with the terminal of multi-channel charging counter and common phone to proceed with on-watching public phone service.

3.   Can connect with common phones to dial international, national, local network and GSM calls.

4.   It can be connected with customer exchanger and group phone as wireless relay, which is suitable for office business telephone.

5.     The communication distance between this terminal and the digital station is farther than that between the mobile and the digital station, thus the wire extension is made use of shortening the blind area and blind spot.

6.     Four channels share one antenna, multi-antenna compatible.

7.   Supply indications of the signal dactyl, working, and power supply.

8.   Detect called party answer, and provide exact polarity reversal signal for charging.

9.     To answer incoming call.

10.  Caller ID.

11.  Can provide an integrated telephone tone.

12.  Voice adjustment of calling in and out, multi-lever volume to be chosen.

13.  Wireless signal indicator available.

14.  Support the functions of handfree and redialing.

15.  Local area phone number and the long distance phone number can be auto-distinguished, and the IP connecting number is auto-added before the long distance phone call. It also offers double IP switch for choice.

16. Dialer function inside, programmable call routing (such as you can set 193 or 17911 IP phone when launching long distance call).

17. Output the counter-electrode signal to set up the charging of calling in and out.

18. The terminal can be matched with all kinds of antennae such as omni-directional antenna, beamed antenna, high plus antenna.

19.  Possess an agile function for setting up parameters. Through the phone set, the management system or the PC can process the setting up and modification of parameters.

20.  The power supply of DC12V and AC220V are both OK.

21.  Standby battery supported (optional).

22.  With PIN code protection function inside, double security by phone password and start-up PIN code.

23.  Ingenious outside appearance is the standard 1U 19 inches.