User`s guide

Troubleshooting 261
Synapse User’s Guide
Deskset cannot make or
receive phone calls and the
Deskset screen displays
Synchronizing....
(Continued)
The Deskset is the only
device on the subnet.
Power cycle the Deskset by unplugging the power cord
and plugging it back in.
If power cycling does not work, back up your Deskset and
reset to factory defaults by using a paper clip to press and
hold the reset switch (located on the underside of the
unit) for more than five seconds. Restore your settings
after restart.
Gateway is not active
immediately after a power
interruption.
The Gateway needs time to
restore service.
Allow at least 30 seconds for the Gateway to boot up
again after a power failure.
Bypass jack does not work
during power failure.
The PSTN line is not in the
correct jack.
Make sure there is a PSTN line plugged into Line 4.
Make sure an analog phone is plugged into the bypass
jack (using a modular line cord).
Line-Status LEDs do not flash
red when the telephone line
cords are plugged into the
Gateway after power is
switched on.
Line calibration allows the
Gateway to adjust its
performance depending on
the phone lines’
characteristics. The Gateway
may not have performed
calibration.
Make sure an Ethernet cable is plugged into the port
marked LAN.
Unplug the telephone line and wait two full seconds for the
Gateway line LED to turn red before plugging it back in.
Symptom Probable Cause Corrective Action Gateway Troubleshooting