User`s guide

Troubleshooting 265
Synapse User’s Guide
Unable to make outside calls. An outside phone number
cannot be accessed through
the Gateway.
 Ensure that you enter a 9 before the telephone number
to indicate this is an outside call. For example,
9-1-555-0123.
 If you see All Phone Lines Busy on the Deskset screen,
try again later because all outside lines may be in use.
 Ensure that a Gateway is connected to the network and
that it resides on the same subnet as the Deskset.
Deskset does not receive
incoming calls.
Incoming call notifications
have been suppressed or are
unable to reach the Deskset.
 Ensure that the Ethernet cable is securely plugged into
the network port beneath your Deskset and that the other
end is plugged into your office LAN.
 Verify that Do Not Disturb is off. Make sure that DND is
not in the top right corner of the Deskset display. Turn this
feature off by using the Deskset Idle screen soft keys.
 Verify that Call Forward All is off. Make sure that
is not in the top right corner of the Deskset display. Turn
this feature off by using the Deskset Idle screen soft keys.
 If the Deskset does not ring on an incoming call, press the
VOL+ key to increase ringer volume.
 Incoming calls may be directed to a Ring Group that you
are not part of.
Excessive echo heard at the
Deskset on outside calls.
The automatic line
calibration did not run
properly.
 There may be non–system equipment connected in
parallel to the telephone line. See “To resolve audio echo
issues:” on page 241.
Symptom Probable Cause Corrective Action Deskset Troubleshooting