Panasonic KX-TVM50 Installation Manual page 228

7.6 Troubleshooting
PROBLEM
Line disconnection occurs
while transferring a trunk
call.
Unable to transfer a trunk
call.
Unable to call an outside
party.
Unable to call an extension. •
Unable to access the
mailbox.
228 Installation Manual
PROBABLE CAUSE
• Improper setting of the
sequence.
• Improper setting of the
hooking time.
• Improper setting of the CPC
signal.
• "Transfer to CO" not enabled
on the PBX.
• Improper setting of the trunk
call dial procedure.
Improper setting of PBX
Extension Numbering Plan.
• Improper setting of the
mailbox number.
POSSIBLE SOLUTION
• Adjust the transfer sequence
to that of the connected PBX
and reset (see "Operator
Transfer Sequence" and
"Extension Transfer
Sequence" in 2.5.4
Parameters in the
Programming Manual).
• Adjust the hooking time to that
of the connected PBX and
reset (see "Flash Time" in
2.6.1 Global Parameters in the
Programming Manual).
• Adjust the CPC signal to that
of the connected PBX and
reset (see "CPC Signal " in
2.6.1 Global Parameters in the
Programming Manual).
• Reset the trunk access
sequence of the connected
PBX (see "Dial Number" in
2.1.4 Notification Parameters
and "Number of Digits to
Access Outside Line" in 2.5.4
Parameters in the
Programming Manual).
• Also check "Outgoing Call No
Answer Time" in 2.5.4
Parameters in the
Programming Manual.
• When setting a Dial Number
for Device Notification or a
telephone number for External
Message Delivery, keep in
mind the "Note" for "Dial
Number" in 2.1.4 Notification
Parameters in the
Programming Manual.
• Check the PBX Extension
Numbering Plan.
• Adjust the number of digits in
the mailbox number (see
"Mailbox Number" in 2.1.3
Mailbox Parameters in the
Programming Manual).