Ringing and Ring-back audio

Unanswered Question
Mar 19th, 2010
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Hi,


How ringing and ring-back audios play in voip using skinny and sip protocols?

In other words, who is responsible for ringing/ring-back tone: ip phone/local gateway/call agent?


Thanks,

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Aaron Harrison Fri, 03/19/2010 - 15:34
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Hi


It's generally generated by the endpoint....


E.g. for an IP Phone, CCM sends a 'start tone' message to the phone to play ringback (in whatever is the local style) or dial tone...


Regards


Aaron


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