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Q931 connect message

I have a 3640 Gateway with E1 interface connected to a PBX (isdn switch-type primary-net5 protocol) in one site and 3640 Gateway with analog FXO interface in another site.

When the ISDN Gateway send call to the analog Gateway, it receive Q931 connect message in any case :

- when the phone is busy in the analog GW site

- when the dial number is wrong in the analog GW site

- when the phone is ringing in the analog GW site and no answer

Some one has any idea to rectify the problem ?

Thanks for any answer


Re: Q931 connect message

Often times complex troubleshooting issues are best addressed in an interactive session with one of our trained technical assistance engineers. While other forum users may be able to help, it’s often difficult to do so for this type of issue.

To utilize the resources at our Technical Assistance Center, please visit and to open a case with one of our TAC engineers, visit

If anyone else in the forum has some advice, please reply to this thread.

Thank you for posting.

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