AT&T SB67060 T1 Installation Guide Page 165

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Troubleshooting 164
Synapse Installation Guide
I cannot make or receive
phone calls and the
T1 Gateway RAI/LOF/LOS
LED is flashing RED.
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.
I cannot make or receive
phone calls and the
T1 Gateway AIS LED is
flashing BLUE.
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.
I cannot make or receive
phone calls and the
T1 Gateway LOOPBK LED is
GREEN or flashing GREEN.
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 in to the WebUI as administrator, click T1
Settings, then T1 Diagnostics.
b. Change the T1 in loopback test mode by selecting
from the Set Loopback Mode drop-down list.
c. Select none and then to stop the test.
I cannot make or receive
phone calls and the
T1 Gateway LOOPBK LED is
RED.
The T1 Gateway is not
synchronized with the
Synapse system.
Check the Ethernet Connection to your Synapse T1
Gateway.
Symptom Probable Cause Corrective Action T1 Gateway Indicators
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