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New Member

Ringback issues with Unity

I have a customer with the following setup. CM 3.09, Unity 2.46.102 and a VG200 using h323 to bring in a PRI with DID's. If you call any of the DID's you get Ringback and the Unity picks up and everything is ok. But once you are in a Call Handler or a users Voice Mail box and you enter another extension and Unity informs you are being transferred the caller does not hear ringback on the transfer. The caller just hears dead air until the intended user's greeting starts. Another thing about this is that the same thing happens on internal calls as well. This is really strange becuse it has been working since August and just last night it started acting up. Any ideas?????


Re: Ringback issues with Unity

Often times complex troubleshooting issues are best addressed in an interactive trouble-shooting 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.

New Member

Re: Ringback issues with Unity

Here's a URL for a document that I found on this subject:

I can't offer any explanation why it just started. Our system has been doing this since we installed Unity and upgraded to CM 3.12c.

Cisco Employee

Re: Ringback issues with Unity

Ran into the same issue here and the link solved the issue. Thx!

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