1. Based on GSM 900/1800MHz or 850/1900MHz
2. Support reverse polarity
3. Can connect to PBX.
4. With PSTN port
5. Support GPRS (optional)
6. Support Call-transfer PSTN<->GSM

Main Functions:

1. Using SIM card

2. Making & answering calls after connecting to telephone set

3. Available to connect with telephone set, Billing machine, etc

4. Supports the functions of redialing and hands-free

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

6. Caller ID

7. Featured with signal intensity indicator, working status indicator, breakdown indicator, etc

8. Built-in PIN code protection featured with locking device/card/network

9. Able to select calling out by GSM or PSTN.

10. Support call-transfer PSTN to GSM or GSM to PSTN: auto-transfer or by hand

11. Support connect Internet by GPRS. (optional)

 

Technique Parameters:

Working Frequency

Rx (EGSM 900): 925~960MHz

Tx (EGSM 900): 880~915MHz

Rx (DCS 1800): 1805~1880MH

Tx (DCS 1800): 1710~1785MHz

Power Consumption: <=5W

Working Voltage: DC12V

User Access Port:

Dialing tone frequency: 450Hz continued

Busy tone frequency: 450Hz 0.35s/0.35s