AT&T SB67030 Administrator's Manual page 216

Symptom
I cannot make or receive
phone calls and the
T1 Gateway LOOPBK LED is
RED.
I cannot make or receive
phone calls and the
T1 Gateway SYN/ACT LED is
OFF and RAI/LOF/LOS LED is
RED.
I cannot make or receive
phone calls but the T1
Gateway SYN/ACT LED is
Green.
Incoming Direct Inward
Dialing calls fail, or the caller
hears, "Invalid extension."
I cannot find the specific DID
number for assignment on
the DID Assignments
screen or the Fax
Configuration screen.
Troubleshooting
Synapse Administrator's Guide
Probable Cause
The T1 Gateway is not
synchronized.
The T1 service is not
synchronized.
There are no T1 channels
available to make the call.
There may be a DID settings
error or the Deskset is not
connected to the system.
There may be a DID range
error or the DID has been
used.
Corrective Action
Check the Ethernet Connection to your Synapse T1
Gateway.
Check the correct T1 cable is used and that it is properly
connected to the T1 Gateway.
Check the Trunk Reservation Configuration to make
sure that there are still some T1 channels or PSTN lines
available. Make sure that Number of Voice Channels
and Lowest Voice Channel have been configured
correctly.
Verify that the Deskset is connected to the system and
has power.
Verify that the DID has been assigned to the correct
extension. On the administrator WebUI, click Extension
Settings, then Basic Settings. Verify the Select
Extension number and select the DID number from the
Select DID drop-down list.
The DID is not within the DID ranges configured or the DID
has been already assigned to another Deskset. Check the
DID ranges configuration in the Admin WebUI. Click
System Settings, then Direct Inward Dial, and verify
the Current DID Ranges.
216
Gateway Troubleshooting