Can I use "Connect with fallback NCCO" with Machine Detection?


  • If a call goes to answer machine, can I hangup and fallback to a new NCCO?
  • Can we fallback a Connect call on voicemail?



It is not possible to serve a new NCCO when an endpoint goes to voicemail using a Synchronous Connect action. When Machine Detection detects a voicemail system has answered the call, the call has been answered and so the Connect action will have bridged the 2 calls already. At this point, it will be too late to keep the first call leg waiting and so you will not be able to serve a new NCCO. You can transfer a call to a new NCCO at this point and send a hangup to the call answered by voicemail using an API request: Modify an existing call

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