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-   -   Auto callback issue with Alcatel 4400 (http://support.avaya.com/forums/showthread.php?t=45)

mangi 02-14-2010 11:30 PM

Auto callback issue with Alcatel 4400
S8300/G450 - CM 5.2 is tie using ISDN PRI with Alcatel 4400. Autocall back feature is working within avaya but not with Alcatel 4400.
I have configured trunk parameters according to guide CM features description and implementation manual.
ISDN CCBS Supplementary Service on Busy

barker 02-15-2010 02:05 AM

Hi Mangi,

ISDN CCBS is for PUBLIC ETSI trunks that support callback. For private trunks between PBX's you need to ensure you have at least one NCA-TSC configured. What does MST tell you?

mangi 02-16-2010 04:57 AM

1 Attachment(s)
I have attached MST log. Can you help me, how to configure NCA-TSC ? any docs or prints.

barker 02-16-2010 07:14 AM

Hi Mangi,

The Avaya is sending the Callback Request (CCBS) to the Alcatel who replies with: with:

4001180f ==> REL_COM crv 1_7da3 bad ie content !
D-channel port number: 4001180f
Protocol Discriminator: 08 call control
Call Reference Value: 02 fd a3 Destination 7da3
Q.931 Message Type: 5a Release Complete
=> CAUSE user: 100. Invalid info element contents
| info elem 04: BEARER CAPABILITY

You will have to ask them what they don't like.

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