ATT DEFINITY Communications System Generic 3V4 Instructions Manual

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ASAI and Call Routing
7
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This chapter describes the Routing Capability Group. The capabilities in this
group allow the switch to ask for and receive routing instructions for a call.
These instructions, issued by the adjunct, are based upon the incoming call
information provided by the switch.
The following capabilities are available:
RouteThis capability lets the switch ask the adjunct
for the best route for an...

ASAI and Call Routingbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
Routebbbbbbbb
This capability allows the switch to request routing information from the adjunct.
The adjunct provides it based upon incoming call information.  This feature may
be used independently of or in conjunction with call monitoring (Event Notification
turned on).
For G3V3 and later, the ASAI-Requested Digit Collection feature gives an
adjunct the ability to request that a DTMF tone detector (TN744) be connected to
detect...

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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
1].
call_id[mandatory] This parameter is the internal call identifier
unique in the switch.
domain IE[optional] 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...

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Protocol Error (NAK) Causesbbbbbbbbbbbbbbb
The adjunct might deny (NAK) a route request, if the request is invalid, with
adjunct-specific causes.  See the 
DEFINITY Communications System CallVisor
ASAI Protocol Reference
, 555-230-221, for more information.
Considerationsbbbbbbbbbbbbbbb
A routing request is only administrable through the Basic Call Vectoring feature.
(See the 
DEFINITY Communications System Generic 3 Feature...

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Route Selectbbbbbbbb
This capability allows the adjunct to provide the switch with the destination
address to which the call should be routed.  In addition, the adjunct can request
the switch to route the call as a direct-agent call and/or a priority call.  The first
Route Select received cancels all other outstanding requests.
For G3V3 and later, the following features provide additional functionality:
ASAI-Provided Digits allows an...

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Route Select Parametersbbbbbbbbbbbbbbb
orig_addrNA (ignored)
dest_addr[mandatory] This parameter is the valid destination for the
call.  If it is an off-PBX number, it can contain the
u/ARS/AAR information.
dest_route_select[optional] Contains the u/ARS/AAR information for
off-PBX destinations.
split_paramIf the direct-agent call option is set to ``yes, then this
parameter must be a valid split extension; the destination
address must...

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number_of_digitsThis parameter indicates the total number of digits that
will be collected (1 to 24).  For ASAI-Requested Digit
Collection, every ``# and ``* count as one digit each.  If
the request is not in the valid range, the Route Select fails
with cause CS0/79 Ð Service/option not available.
digit_coll_timeoutThis parameter indicates how many seconds (1 to 31) the
tone detector will continue to collect digits after the first...

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Permission denied (CS3/43)
Only incoming trunks (of any type, including ISDN, MFC, and R2MFC) are
eligible for ASAI-Requested Digit Collection.  If the originator is not a
trunk, a Route Select with the ASAI-Requested Digit Collection option is
denied.
Permission denied (CS3/43)
A call prompter/tone detector is not connected if the originating trunk (to
which the tone detector is to be connected) does not have incoming
disconnect...

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Route Endbbbbbbbb
This capability is sent by the switch to terminate the routing association and
inform the adjunct regarding the outcome of the route.
Information Flowbbbbbbbbbbbbbbb
The switch does not expect a response to the Route End.
Route End Parameter(s)bbbbbbbbbbbbbbb
causeThe switch issues a Route End for one of the following
reasons:
User busy (CS0/17)
The destination is busy and does not have coverage.
For this case, the...