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ASAI and Call Routing
Issue 7 May 1998
7-3
called party number
(DNIS)
■ [mandatory] For incoming calls over PRI facilities,
the Called Party Number is from the ISDN SETUP
message.
■ For incoming calls over PRI facilities to a VDN that
does lookahead interflow on calls, if the lookahead
interflow attempt fails, the called number provided
is the principal extension of the dialed number.
■ For incoming calls over non-PRI facilities, the
Called Party Number is the principal extension [may
be a group (TEG, PCOL, hunt group, VDN)
extension
2
].
call_id [mandatory] This parameter is the internal call identifier
unique in the ECS.
domain [optional and always provided by the ECS] This
parameter is the VDN extension through which the
Route Request is made.
user-entered
information/ collected
digits
[optional] This parameter represents the digits that may
have been entered through vector prompting,
network-provided digits (CINFO) (starting with R5), or
the ASAI-collected digits feature (starting with G3V3).
lookahead interflow [optional] This parameter ensures that calls do not
interflow to a remote location that cannot accept calls.
This includes the name of the VDN that interflowed the
call, the time at which the call entered vector
processing, and the priority at which the call was
queued.
uui_info [optional] UUI information received in an ISDN SETUP
message, ASAI Third Party Make Call, ASAI Auto Dial,
or ASAI Route Select Message is stored by the ECS
with the call for the life of the call or until overwritten by
another uui associated with the call.