Call Scenarios and Applications

Outgoing Call over Non-ISDN Trunk

This section presents the call flow for an outgoing call over a non-ISDN trunk. Station 1234 initiates this preview dialing call (see Figure A-16).

Note that a Trunk Seized Event Report is generated when the ECS places the call over a non-ISDN trunk. Furthermore, no Alerting or Connected Event Reports follow a Trunk Seized Event Report. The only event report that may be generated for the destination is a Dropped Event Report.

DEFINITY ECS

External Endpoint

 

(non-ISDN Trunk)

call_id=80

x1234

Figure A-16. Outgoing Call over Non-ISDN Trunk

Host

3PMake Call

(called=99085766362, calling=1234)

Trunk Seized Event

(called=####)

Hold Event

Reconnect

Reconnect ACK

Drop Event

(connected=####)

Call Ended Operation

ECSComment

Make call from 1234 to external destination

Call goes over non-ISDN trunk

Station 1234 puts call on hold

External party drops

A-60Issue 7 March 1998

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Image 440
Lucent Technologies 555-230-220 manual Figure A-16. Outgoing Call over Non-ISDN Trunk