GSM Wireless Payphone

18)Batteries which can work 8 hours at least after power cut (optional).

17)Adjustable receiving volume in the handset.

16)External antenna to receive better signal.

15)Supports DTMF/PULSE (optional) dialing.

14)Support printing and Call ID.

13)2LCD.

12)One key go to ON/OFF.

11)Support checking the electric quantity of batteries to avoid being out of power suddenly and losing data.

10)Support choosing lines: GSM, PSTN, or automatic choose by dialing number.

9)Record the last 32 days total report and the last 12 months total report.

8)1000 outgoing/incoming bills record. Include date, time, phone number, duration, sum.

7)Can dial the appointed number as deputy (for GSM line).

6)Can add, modify and delete the tariff items by manual.

5)Support setting 2 tables tariff, one for GSM, one for PSTN.

4)Support five kinds of charge signals: polar-reverse, 16/12 kHz pulse signal (optional), voice (or push to talk), manually and delay automatically charge for PSTN line. GSM line only needs polar-reverse.

3)Supports external DISPLAY.

2)System with Power on Self Test controlled by microprocessor circuit.

1)Base on GSM, four band 900MHz, 1800MHz, 850MHz, 1900MHz.

Features:

GSM fixed wireless terminal and phone billing meter built-in, more smart and conveniencely, save your cost largely....

GSM fixed wireless terminal and phone billing meter built-in, more smart and conveniencely, save your cost largely....