7.4 TROUBLESHOOTING GUIDE216 Installation ManualLine disconnection occurswhile transferring anoutside call.Unable to transfer anoutside call.• Improper setting of thesequence.• Improper setting of thehooking time.• Improper setting of the CPCsignal.• "Transfer to CO" not enabledon PBX.• Adjust the transfer sequenceto that of the connected PBXand reset (see "OperatorTransfer Sequence" and"Extension TransferSequence" in Table B-44 inB7.3 PBX InterfaceParameters).• Adjust the hooking time to thatof the connected PBX andreset (see "Flash Time" inTable B-40 in B7.2 PortSetting).• Adjust the CPC signal to thatof the connected PBX andreset (see "CPC Signal" inTable B-40 in B7.2 PortSetting).Unable to call an outsideparty.• Improper setting of theoutside call dial procedure.• Reset the CO line accesssequence of the connectedPBX (see "Dial Number" inTable B-4 in B2 SYSTEMADMINISTRATION—MAILBOXES and "Number ofDigits to Access Outside Line"in Table B-31 in B6.8 OtherParameters).• Also check "Outgoing CallSetup Sequence" in Table B-31 in B6.8 Other Parameters.• When setting a Dial Numberfor Device Notification or atelephone number for ExternalMessage Delivery, keep inmind the "Notice" for "DialNumber" in Table B-4 in B2SYSTEMADMINISTRATION—MAILBOXES.Unable to call an extension. • Improper setting of extensionnumbering plan.• Adjust the extensionnumbering plan properly (see"Numbering Plan 1-16" inTable B-30 in B6.8 OtherParameters).Table 7-5PROBLEM PROBABLE CAUSE POSSIBLE SOLUTION
