7.1 Troubleshooting
Making/Answering Calls, Intercom
Problem
The unit does not ring.
I cannot make a call.
396
Administrator Guide
•
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.
•
Check [Call Control] for each line in the [Telephone] tab
in the Web user interface.
–
If [Enable Do Not Disturb] is set to [Yes], the unit does
not receive calls (→ see 3.6.3.1 Call Features).
–
If [Enable Call Forwarding No Answer] is set to [Yes],
the unit does not receive calls (→ see 3.6.3.1 Call
Features).
–
If [Enable Block Anonymous Call] is set to [Yes], the
unit does not receive anonymous calls (→ see
3.6.3.1 Call Features).
•
Check that [Enable Do Not Disturb], [Enable Call
Forwarding No Answer], and [Enable Block
Anonymous Call] are not controlled by your phone
system.
•
For details about settings, consult your network
administrator or phone system dealer.
•
The handset is too far from the base unit. Move closer and
try again.
•
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.
•
For details about settings, consult your network
administrator or phone system dealer.
Cause/Solution
Document Version: 2020-04