IP Phone User Manual
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Appendix A - Troubleshooting
Symptom 1:
My KT101 is not in the normal standby state (that is, the LCD never displays
IP Phone…), and the dial tone cannot be heard when I pick up the handset.
Solution:
1) Check to see if the LAN indicator on the rear of the base lights. If it does not, check
that:
The two ends of the network cable are completely and securely plugged into the LAN
interface of your KT101 and the corresponding port of the access device.
The network connection type is properly set (refer
to section 3.2.1 II. ―Configuring the
network connection type‖ or section 3.3.2 I. ―Configuring the LAN interface‖ for details).
You are experiencing other network problems if the above two are OK. Consult your
carrier or the administrator for help.
2) Check to see if the protocol settings are configured according to the protocol
parameters your carrier or the administrator provides. Before using your KT101, you
must configure the protocol parameters correctly to make it register with the carrier’s
server. R
efer to section 3.2.2 ―Configuring Protocol Parameters‖ or section 3.3.3
―Configuring Protocol Parameters‖ for details.
3) Check to see if the two ends of the handset cord are completely and securely plugged
into the handset and the base.
Symptom 2
: Loud noise can be heard during a call.
Solution:
Check to see if the volume is too high. Refer to section 5.5 ―Voice Settings‖ for
details on setting the volume.
Symptom 3:
The voice is too tiny to be heard.
Solution:
Increase the output volume by pressing <UP> during a call. Refer to section 5.5
―Voice Settings‖ for details on setting the volume.
Symptom 4:
With DMZ enabled, external hosts cannot access the DMZ host. Solution:
Check to see if port conflicts occur. This is caused that the port range set in the DMZ
configuration contains the port used by the services your KT101 provides. If yes, set the
range to exclude these ports.
Symptom 5:
After I enable static port mapping, my KT101 operates improperly.
Solution:
Check to see if port conflicts occur. This is caused by that the mapped port are
used by the services your KT101 provides. If yes, select an unused port.
