ASAI and Call Control

Redirect Call

The adjunct uses this capability to re-route a call that is already alerting a station extension.

Information Flow

The adjunct expects a response to its request.

The ECS either:

Redirects the call and drops the alerting party after validating the parameters, or

Denies the request and maintains the alerting party

Third Party Redirect Call Parameters

redirecting [optional] Identifies the party to be redirected from [must map

party_id to a valid voice station extension, which includes off-premises stations (OPS)]. If not specified, call is redirected away from “last added party” to a call.

redirected- [mandatory] Identifies the number the call is routed to (may

to-numberbe on or off the ECS). If more than 24 digits are provided, only the first 24 are used.

ACK (Positive Acknowledgement) Parameters

An acknowledgment is sent to the adjunct if the request is successfully completed and the call stops alerting the redirecting station.

No parameters are contained in the acknowledgement for this capability.

Denial (NAK) Causes

The ECS issues one of the following reasons as the cause for denying the request:

Request is for release prior to G3V4 (CS0/111)

This service is only available beginning with release G3V4.

Mandatory Information Element missing (CS0/96)

The redirected-to number or other IE is missing in the request.

Invalid CRV (CS0/81)

The Call Reference Value is missing or invalid.

4-48Issue 7 May 1998

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Lucent Technologies 555-230-220 manual Third Party Redirect Call Parameters