Call Scenarios and Applications

 

 

Public

Host

DEFINITY ECS

Network

 

Call SETUP message

 

 

(No CPN)

 

 

(No II-Digits)

 

 

FACility message

 

 

(NSF = CPN preferred)

 

 

FACility ACK

 

 

(CPN = 908 555 5678)

 

 

(II-Digits = 0x02)

 

Call Offered Event

 

(CPN = 908 555 1234)

 

(II-Digits = 0x02)

 

 

(Domain = Split 1)

 

Queued Event

 

 

(Domain = Split 1)

 

(No II-Digits)

 

 

. . .

. . .

 

Alerting Event

 

 

(CPN = 908 555 1234)

 

(II-Digits = 0x02)

 

 

(Domain = Split 1)

 

Connected Event

CONNect message

 

(CPN = 908 555 1234)

 

(II-Digits = 0x02)

 

 

 

CONNect ACK message

 

Drop Event

DISConnect message

 

(No II-Digits)

 

 

Comment

Call placed to Split 1.

DEFINITY ECS requests CPN, or BN

if CPN not available.

Public Network provides CPN and II-Digits.

Call offered to Split 1.

Call waits in queue.

Another call drops, making an agent available.

Call rings at agent.

Agent answers.

Network ACKs CONNect message.

Calling Party Drops

The second scenario is similar to the first, except that the CPN/BN (and thus the II-Digits) is not included in the SETUP message. Instead, DEFINITY ECS decides on a call-by-call basis when to ask the network for the CPN/BN. In this case, DEFINITY ECS asks for CPN/BN, and the II-Digits are included along with the CPN/BN.

Issue 7 March 1998 A-77

Page 457
Image 457
Lucent Technologies 555-230-220 manual Call Scenarios and Applications