Installation guide

Synapse Installation Guide Back to Contents
Troubleshooting 111
I cannot make or receive phone calls and the T1 Gateway RAI/LOF/LOS LED is flashing RED.
I cannot make or receive phone calls and the T1 Gateway AIS LED is flashing BLUE.
I cannot make or receive phone calls and the T1 Gateway LOOPBK LED is GREEN or flashing
GREEN.
I cannot make or receive phone calls and the T1 Gateway LOOPBK LED is RED.
Probable Cause Corrective Action
The Flashing Red alarm
indicates Loss of Signal
There is loss of valid signal
from the service provider.
1. Verify that your T1 cable is connected to the
equipment.
2. Check the T1 Settings to confirm that the
configuration parameters (Signaling type, Build
out) correspond to the service provider's.
3. If the problem remains, contact your T1 service
provider.
Probable Cause Corrective Action
The Blue Alarm is an Alarm
Indication Signal.
The T1 circuit is operating
correctly, but the service
provider is not sending
proper data.
 Contact your T1 service provider.
Probable Cause Corrective Action
The system is in Local
Network or Loopback test
mode.
 The LOOPBK LED should only be ON when you
have activated a Loopback test. If this test should
not be running, disable the Loopback Test in the
Admin WebUI.
a. Log on to the WebUI as administrator, click
T1 Settings, then T1 Diagnostics.
b. In the Set Loopback Mode list, select None.
c. Click .
Probable Cause Corrective Action
The T1 Gateway is not
synchronized with the
Synapse system.
 Check the Ethernet connection to your Synapse
T1 Gateway.