Frequency: GSM 900/1,800/1,900MHz

4-port GSM FWT

GSM gateway

Mainly for VOIP call terminations and originations

FWT have standard FXS (RJ11) connect to many kinds of VOIP gateway such as Quintum gateway, Cisco gateway, Newrock Gateway, Asterisk, IP PBX, PBX and more

Standard RJ-11 (FXS) to telephone or VOIP gateway and PABX

Radio bases changing automatically to simulate movement

Provide accurate anti-polarity signal

Precise reverse polarity

Caller ID

Callback function

Support DTMF

Support 2nd stage dialing

Can dial number including*#

Lock network

Support CLIR (calling line identity restriction)

Forbid incoming call

Set IP number before the number

Set the number can not be dialed

Can set auto dial till connect call

1 U rack size

Supply DTMF dialing interface (RJ-11 phone interface)

Standby voltage: 45 to 50V

Hanging voltage: 9 to 14V

Ringing voltage: 75V

Call connected voltage: 9 to 12V

Dialing tone frequency: 420Hz

Busy-tone and disconnect tone with 0.35 seconds on/off

DTMF on/off interval: 100 minutes

Picking current: 23/43mA