Nortel Meridian Meridian 1 Feature Description And Administration page 981

ISDN QSIG Call Diversion Notification Enhancements Page 981 of 1814
QSIG Name Display Supplementary Services
Calling Name
After a QSIG Diversion takes place, and Call Diversion Notification
information is received at the diverted-to node, the calling name is displayed
on the diverted-to user's set only if this set has a DNDD class of service. If
the diverted-to user's set has a DNDA class of service, another name or
nothing is displayed.
Alerting/Connected Name
When both names from a QSIG Name Display Service and a QSIG Diversion
Notification are included in a same message, the name from the QSIG Name
Display Service will be ignored. Note that these names should be the same.
If a name, either from QSIG Name Display Service and QSIG Diversion
Notification, is received, it will be displayed only if no subsequent
subscription option forbids it.
QSIG Path Replacement
QSIG Path Replacement can be triggered after QSIG Diversion has been
applied. As QSIG Diversion has its own optimization method (diversion by
Rerouting), an IE indicating the method used is sent by the Meridian 1 during
QSIG Diversion towards the diverted-to node. At the diverted-to Meridian 1
node, upon receipt of this IE, QSIG Path Replacement should only be started
if diversion has not already optimized the call.
QSIG Call Transfer
There is no interaction when Station A and Station B are connected after a
diversion, and then Station B transfers the call to Station C.
Station A and Station B are connected. Station B transfers the call to
Station C, who then diverts the call to Station D. The notification depends on
when Station B completes the transfer. If the transfer is completed before the
diversion occurs, then the two services do not interact. The final notification
is given by the Call Diversion Notification. If the diversion is initiated before
the transfer has been completed, then the final notification depends on the
transfer notification rules.
International ISDN PRI Feature description and administration