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Issue
Possible Cause & Solution
Reference
I cannot make TEL calls.
•
The TEL line is not selected.
→
Before dialing, confirm that "
TEL
" is shown in the
upper-right corner of the display. Press the center function
button (
[F2]
) to change the line if necessary.
•
The unit is not set to make TEL calls.
→
Make sure the "
Line Selection
" setting is set to "
IP +
TEL
".
•
The operation mode is set to "
USB Audio
".
→
When the operation mode is set to "
USB Audio
", you
cannot make or receive IP, TEL, PS or PC calls. Change
the setting to "
Peer to Peer
" or "
IP-PBX
".
•
The dial mode setting is incorrect.
→
Make sure that the dial mode matches the type of
telephone service you have (i.e., tone or pulse).
I cannot receive IP calls.
•
The "
Operation Mode
" setting is not correct.
→
Change the setting to "
Peer to Peer
" if you want to
make or receive peer to peer IP calls (i.e., calls made by
specifying the called party's IP address).
→
Change the setting to "
IP-PBX
" if you want to make or
receive intercom and outside calls as a SIP extension (i.e.,
calls made by specifying the called party's SIP extension
number or SIP URI).
→
When the setting is "
USB Audio
", you cannot make or
receive IP calls. Change the setting to "
Peer to Peer
"
or "
IP-PBX
".
I cannot receive TEL calls.
•
The unit is not set to receive TEL calls.
→
Make sure the "
Line Selection
" setting is set to "
IP +
TEL
".
•
The operation mode is set to "
USB Audio
".
→
When the operation mode is set to "
USB Audio
", you
cannot make or receive IP, TEL, PS or PC calls. Change
the setting to "
Peer to Peer
" or "
IP-PBX
".
Document Version 2011/06
Operating Instructions
67
Troubleshooting