Lucent Technologies 555-661-150 User Manual

Page of 360
MERLIN LEGEND Communications System Release 6.1
Network Reference  
555-661-150  
Issue 1
August 1998
Troubleshooting 
Page 6-16
Transfer Call to Non-Local Extension Does Not Return 
6
Telephony Services client, only the transfer originator calling information is 
delivered to the extension, not information about the original caller.
PSTN Trunk Transfer. The system permits trunk-to-trunk transfers of 
inside or outside calls to non-local extensions, regardless of whether 
system programming has prohibited trunk-to-trunk transfer. However, 
trunk-to-trunk transfer does not work under the following circumstances:
— Trunk-to-trunk transfer is prohibited at the transferring extension and the 
call is an outside call being transferred to a local PSTN line/trunk.
— The transfer originator is attempting to transfer an outside PSTN or 
private network call to or from a loop-start line that does not have 
reliable disconnect. All loop-start lines connected to networked systems 
must have reliable disconnect. 
If the problem persists, call the Lucent Technologies Helpline at 1 800 628-2888; 
consultation charges may apply.
Transfer Call to Non-Local 
Extension Does Not Return
6
Possible Cause: If a transfer to a non-local extension cannot be completed (due 
to the extension being busy, for example), the transfer returns only when the call 
was transferred manually and routed over tandem PRI facilities. Calls are not 
returned under the following conditions:
The call is routed over tandem tie trunks or PSTN trunks that may be used 
for less preferred routes
The system operator transfers the call using a DSS programmed for 
transfer with automatic completion over PRI tandem trunks. 
What to Do:
 Review the routing for the call (see 
 for instructions), and check with the coordinating 
system manager if necessary. If the call is routed over any tandem tie trunks or 
over any PSTN facilities, or if an operator is using a DSS programmed for transfer 
for automatic completion over PRI trunks, you have solved the problem.
If the call is routed only over tandem PRI facilities, call the Lucent Technologies 
Helpline at 1 800 628-2888; consultation charges may apply.