ITS Telecom CGW-T Installation And Programming Manual page 22

5.1.2 CGW-T/D Diagnostics
Perform the diagnostic procedure as follows:
Connect an analog telephone directly to the trunk (T/TS) or Phone/PBX (D) connector
(RJ-11) on the unit front panel.
Pick up the receiver and listen to the dial tone:
- A continuous tone indicates that the unit is working correctly and ready for
programming.
- A busy tone indicates that there is a fault. Check the LCD display for a message.
NOTE
If there is no SIM card in the device, or if the card is not installed properly, there will
be no tone on the CGW-T, whereas on the CGW-D the tone will be that of the PSTN
line.
On the CGW-D, the dial tone does not serve as an indication that the device is in
order! Even if the unit is not powered, the user will hear the PSTN dial tone.
16 CGW-T/TS/D Installation and Programming Manual