I am trying to figure how to call forward a phone that then forwards to voice mail. Right now all calls keep the first number and then play the first phones voice mail. How do i get forwarding to play the second phones voice mail?
Call Information Exchanged by the Phone System and Cisco Unity
The phone system and Cisco Unity exchange call information to manage calls and to make the integration features possible. With each call, the following call information is typically passed between the phone system and Cisco Unity:
â¢The extension of the called party.
â¢The extension of the calling party (for internal calls) or the phone number of the calling party (if it is an external call and the phone system supports caller ID).
â¢The reason for the forward (the extension is busy, does not answer, or is set to forward all calls). There is also a reason code for Direct Calls.
Cisco Unified Communications Manager SCCP and SIP trunk integrations can also provide the following call information (the choice of first and last redirecting number is set in the Advanced Settings Tool, which is available in Tools Depot):
Thank you very much, I got the logic now, I have one more question, we have Exchange UM integrated with Call Manager,
From CUCM ----> CUBE the signalling is H323
From CUBE ----> Exchange UM signalling is SIP
A call comes from PSTN ( ISDN PRI T1 ) to Extension 2000 and Extension 2000 is Call Forwarded All to Extension 3000, what will be the redirecting number sent by H323, does Q931 have control over it, or only H323 has full control.
Recommend you to use SIP end to end from CUCM - CUBE - Exchange. The setup you have today with H.323 and SIP is unnecessary complex.
About your question, the Q.931 part has nothing to do with the call leg from CUCM to CUBE. That would in your case be H.323. In the H.323 signaling you should be able to see both DNs as the redirecting number, but Unity will out of the box look at the first redirecting number, as stated by the Huffmeister (+5).
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