CFA and ISDN channel usage

Unanswered Question
Jul 7th, 2008
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Hi,


If an external caller was redirected (CFA) at another external user, how many ISDN channels are needed?


And what happen if voice gateway uses MGCP and CM went down? Assuming no SRST as well.


Thanks,


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Jaime Valencia Mon, 07/07/2008 - 09:08
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2 channels, one for the incoming call and one for the outgoing call


call should stay up because of call preservation, SRST is used for phones after failover and to make new calls so it's really out of the picture at that point.


HTH


javalenc


if this helps, please rate

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