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7.1 Troubleshooting
If you still have difficulties after following the instructions in this section, disconnect the unit from the AC outlet,
then connect the AC adaptor again. If using PoE, disconnect the LAN cable, then connect the LAN cable again.
General Use
Problem
Cause/Solution
I cannot hear a dial tone.
• Network settings may not be correct.
• Many installation issues can be resolved by resetting all
the equipment. First, shut down your modem, router, hub,
unit, and PC. Then turn the devices back on, one at a time,
in this order: modem, router, hub, unit, PC.
• If you cannot access Internet Web pages using your PC,
check to see if your phone system is having connection
issues in your area.
• Check the VoIP status in the Web user interface and
confirm that each line is registered properly (® see To
check the setting status in the Web user interface in
this section).
• Check that the SIP server address, URLs of the
configuration files, encryption key, and other required
settings are correct.
• Check the firewall and port forwarding settings on the
router (® see 1.1.6 Other Network Settings).
• For details about the settings, consult your network
administrator or phone system dealer.
The unit will not start up correctly.
• Web user interface settings or configuration file settings
may not be correct. Perform the following procedure to
initialize the settings, and then reconfigure the unit
correctly.
1. On the Home screen, select
.
2. Press [#][1][3][6].
3. Enter the Admin Password, and then press [ENTER].
4. Select
Yes
.
Note
• After performing Factory Setting, the unit will
restart automatically.
• If settings were not initialized after performing this
procedure, consult your phone system dealer.
328 Administrator Guide Document Version 2014-05
7.1 Troubleshooting