AT&T Synapse Installation Manual page 178

Symptom
I am unable to locate the
Cordless Handset from the
SB67030 Deskset.
Cannot make or receive
phone calls on the T1
channels.
Troubleshooting
Synapse Installation Guide
Probable Cause
The Cordless Handset's
battery is dead.
The Cordless Handset is out
of range or not registered.
You deregistered the
Cordless Handset on the
Handset, but the Deskset still
indicates it is registered.
Incoming or outgoing calls
using the T1 trunk are
attempted before the 
SYN/ACT LED is GREEN.
Corrective Action
Charge the Cordless Handset battery.

If does not appear on the Deskset Idle screen,

then the Cordless Handset is not registered. Register the
Handset at the Deskset. Press MENU –> 2 –> 6 –> 1 –>
.
Deregister the Cordless Handset on the Deskset.

On the Deskset, press MENU –> 2 –> 6. If the Handset is
registered, the screen indicates 1. Handset
(Registered). Press 1 –>
Handset.
Press the RESET button on the front panel of the T1

Gateway for less than 5 seconds.
Wait for the SYN/ACT LED to turn

or receiving any T1 calls or receiving calls on the T1
Gateway.
177
Other Deskset Features
to deregister the
GREEN before making