I need a way to implement a type of conference / MeetMe type application that has 1 speaker and multiple listeners.
However, and this is the important part! It must be able to function without a timing source. ie, it must not depend on zaptel or ztdummy.
Create a dial plan and any supporting utilities so that asterisk can be made to dial-out to a number, and use that call as the source. Then call 2 or more other numbers, and pipe the sound from the source call to these calls.