Cisco Gateway and Bosch PBX

Unanswered Question
Aug 29th, 2007

I have PRI ISDN connection between Cisco 2801 VoIP gateway and PBX (Bosch) also I have another PRI ISDN to PSTN. From some phones on PBX I have outgoing i incoming calls but from others I cannot make outgoing calls. In the attach I put debug isdn q931 for phones that cannot make a call.

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teodorgeorgiev Fri, 09/14/2007 - 06:55

Well,

from what I see the:

1. The PBX sends a call request

2. The Cisco accepts the request

3. The call gets connected and Cisco forwards the "CONNECT" message to the PBX.

4. And here is the important thing... the PBX

rejects the call with "No circuit/channel available".

And in the beginning (Q.931 SETUP)there is an error message:

**ERROR**: CCPMSG_InCall: Channel_ID IE invalid 96 (0x60)

Might be that the Bosch has a different numbering scheme (doubt that), or the channel is already occupied by another call (glare).

In this case, try to confrigure the B-channel occupying as ascending on side A and descending on side B.

Indeed, what protocol are you using?

ETSI/NET5 or QSIG?

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