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Issue
Possible Cause & Solution
Reference
I cannot call entries in the
phonebook.
•
You are trying to make a TEL line call, but the unit is not set
to make TEL calls.
→
Make sure the "
Line Selection
" setting is set to "
IP +
TEL
".
•
You are trying to make an IP line call, but 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 of
the connected PBX.
The unit returns to standby
mode while adding or
editing phonebook entries.
•
1 minute has passed since you pressed a button.
→
If you pause for over 1 minute while adding or editing
phonebook entries, the unit returns to standby mode.
—
Programming
Issue
Possible Cause & Solution
Reference
The unit returns to standby
mode while programming
the unit.
•
1 minute has passed since you pressed a button.
→
If you pause for over 1 minute while programming the unit,
the unit returns to standby mode.
—
I cannot program the unit.
•
You are on a call.
→
Program the unit once you have finished the call.
—
•
A call is being received.
→
The unit exits programming mode automatically when a
call is received. Program the unit again once you have
finished the call.
—
After I changed the
settings, the changes do
not take effect.
•
The unit must be restarted before the new setting becomes
effective.
→
Restart the unit.
The DTMF tone signal
sent from the unit is not
detected by the other party
or PBX.
•
The DTMF type differs from the type used by the other party
or PBX.
→
Make sure that the "
DTMF Type
" setting matches the
other party's or other PBX's setting.
Display Messages
Message
Possible Cause & Solution
Reference
Busy
•
The called party is busy (displayed for IP calls only).
→
Try again later.
—
72
Operating Instructions
Document Version 2011/06
Troubleshooting