[asterisk-users] Anyone Know How to Have Asterisk Work Like GranCentral and Require a Touch-Tone to Connect?

[Robert DeVries]

GrandCentral has a feature where when you call the GrandCentral number it
can ring multiple phones.  However, it's not the first phone to answer that
gets connected, but the first phone to answer AND play a touch-tone after
hearing a recording.  The advantage of this is that if one of the called
phones has voicemail, it won't get connected to the calling party because
the VM won't send a touch tone in response to the recording, unlike a live
person.

I have always resisted implementing a multiple ring scenario with Asterisk
that included a cellphone because of the voicemail answering problem, but
this seems to be a solution.

Anyone know how to implement it with Asterisk?
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