Loop Closure Detection
Loop Disconnect
Loop Reversal
Loop Voltage and Current Monitoring
On-hook and Off-hook T
Hook-flash Detection
DTMF Signaling
Programmable Audio Gain
Guarantee safe & secure checkout
Loop Closure Detection
Loop Disconnect
Loop Reversal
Loop Voltage and Current Monitoring
On-hook and Off-hook T
Hook-flash Detection
DTMF Signaling
Programmable Audio Gain
On-board Power Generation
Constant Loop Current: 20mA
Data sheet
Number of Quad Band GSM channels per module – 1
External antennas – 1
SIM Cards – 1 total
External power supply required – No
Interoperable modules – 4FXO, 4FXS, 2FXOS, 4BRI, 1E1/T1 (PRI)
Supported protocols – Voice (2G), SMS
Accessibility through Asterisk 1.8x
Each port has one LED (Light-Emitting Diodes), which is assembled on the mainboard.
The Red LED indicates port status:
Solid Red = Module loading successful
Blink Red = Channel Ringing
If the LED is off, the GSM module is loading failure.
The Red LED indicates port status:
Solid Red = TE Model
The Green LED indicates port status:
Solid Green = NT Model
If the LED is off, the module is loading failure.
