Pub. 42004-456B
Model 352-701 and 352-703 Division 1 VoIP Telephones
Page 18 of 20
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Troubleshooting
Table 4. Troubleshooting Chart
Problem Possible
Solution
Low volume in handset
or headset
Increase the volume setting using the Volume Adjust button on the front
panel.
N
OTE
:
There is no external speaker adjustment.
High volume in handset
or headset
Decrease the volume setting using the Volume Adjust button on the front
panel.
N
OTE
:
There is no external speaker adjustment.
Front panel push buttons
are not operational
Verify the push buttons are properly configured.
Inputs not operational
Check the input connections.
Verify the inputs are properly configured.
Outputs not operational
Check the output connections.
Verify the outputs are properly configured.
Cannot make or receive
calls
Check the connection of the LAN cable.
Verify that power is applied to the unit.
Verify the LAN parameters have been configured properly.
Verify the telephone has been set up on the network.
No power indication
Check the power connections.
If using POE, check the operation of the POE equipment.
