That's a great point--I obviously hadn't considered that. Is it possible to do a REINVITE after the user presses 1 (to offload the audio once the call is accepted)?
It's pretty easy for me to say something like 'I do this all the time on my Asterisk system...' (which is true). But I do recognize that my Asterisk system handles essentially one production-level 'phone line' (plus my hobby stuff) for one family--quite a difference from a real-world provider situation!
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