AT&T SB67030 Administrator's Manual page 214

Symptom
On a PSTN Gateway, Line-
Status LEDs do not flash red
when the telephone line
cords are plugged into the
Gateway after power is
switched on.
I changed an extension
number, but the DID number
did not change.
My T1 trunk appears to be
locked up.
I cannot make or receive
phone calls and the
T1 Gateway RAI/LOF/LOS
LED is YELLOW (yellow).
Troubleshooting
Synapse Administrator's Guide
Probable Cause
Line calibration allows the
PSTN Gateway to adjust its
performance depending on
the phone lines'
characteristics. The Gateway
may not have performed
calibration.
DID numbers do not change
when extension numbers are
changed.
Incoming or outgoing calls
using the T1 trunk are
attempted before the
SYN/ACT LED is GREEN.
The Yellow Alarm is a
Remote Alarm Indication.
Telephone equipment
outside of your Synapse
system is sending an alarm
that signals that it is
receiving unreliable signals.
Corrective Action
Make sure an Ethernet cable is plugged into the port
marked LAN.
Unplug the PSTN telephone line and wait two full seconds
for the Gateway line LED to turn red before plugging it back
in.
Manually change the DID number. See
assign Direct Inward Dial numbers:" on page
Press the RESET button on the front panel of the T1
Gateway for less than 5 seconds.
Wait for the SYNC LED to turn
receiving any T1 calls or receiving calls on the T1
Gateway.
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.
214
Gateway Troubleshooting
"To manually
105.
GREEN before making or