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7.4 TROUBLESHOOTING GUIDE
Installation Manual 173
Line disconnection occurs
while transferring an
outside call.
Unable to transfer an
outside call.
• Improper setting of the
sequence.
• Improper setting of the flash
(recall) time.
• Improper setting of the CPC
signal.
• Adjust the transfer sequence to
that of the connected PBX and
reset (see "Operator Transfer
Sequence" and "Extension
Transfer Sequence" in Table B-
42 in B7.3 PBX Interface
Parameters).
• Adjust the flash (recall) time to
that of the connected PBX and
reset (see "Recall Time" in
Table B-38 in B7.2 Port
Setting).
• Adjust the CPC signal to that of
the connected PBX and reset
(see "CPC Signal" in Table B-
38 in B7.2 Port Setting).
Unable to call an outside
party.
• Improper setting of the outside
call dial procedure.
• Reset the outside (CO) line
access sequence of the
connected PBX (see "Dial
Number" in Table B-5 in B2
SYSTEM ADMINISTRATION—
MAILBOXES and "Number of
Digits to Access Outside Line"
in Table B-29 in B6.7 Other
Parameters).
• Also check "Outgoing Call
Setup Sequence" in Table B-29
in B6.7 Other Parameters.
• When setting a Dial Number for
Device Notification or a
telephone number for External
Message Delivery, keep in mind
the "Important Note" for "Dial
Number" in Table B-5 in B2
SYSTEM ADMINISTRATION—
MAILBOXES.
Unable to call an extension. • Improper setting of extension
numbering plan.
• Adjust the extension numbering
plan properly (see "Numbering
Plan 1-16" in Table B-28 in B6.7
Other Parameters).
Unable to access the
mailbox.
• Improper setting of the mailbox
number.
• Re-adjust the number of digits
in the mailbox number (see
"Mailbox Number" in Table B-3
in B2 SYSTEM
ADMINISTRATION—
MAILBOXES).
Table 7-5
PROBLEM PROBABLE CAUSE POSSIBLE SOLUTION