Making/Answering Calls, Intercom
Problem Cause/Solution
The unit does not ring.
• 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 4.6.2.1 Call Features).
– If [Enable Call Forwarding No Answer] is set to [Yes],
the unit does not receive calls (→ see 4.6.2.1 Call
Features).
– If [Enable Block Anonymous Call] is set to [Yes], the
unit does not receive anonymous calls (→ see
4.6.2.1 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.
I cannot make a call.
• 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.
Password for Web User Interface Programming
Problem Cause/Solution
I have lost the login password of the Web
user interface for the Administrator or
User account.
• Consult your network administrator or phone system
dealer.
For security reasons, it is recommended that the
passwords are set again immediately (→ see 4.4.3 Admin
Password Settings or 4.4.2 User Password Settings).
8.1 Troubleshooting
Document Version: 2017-07 Administrator Guide 385