[Asterisk-Users] Answer confirmation via IAX?

[Jason Lixfeld]

Is there a way to get answer confirmation via IAX and not only via  
ZAP?  We get our outbound service via an IAX trunk to our provider so  
we aren't in control of their ZAP configs, but ideally we'd like to  
be able to achieve the answer confirmation functionality regardless,  
especially in the case of follow-me that dials SIP and IAX extensions  
simultaneously when the IAX dials a cell phone that goes to  
voicemail.  Without the ability to confirm the answer, the call is  
completed when the cell phone voicemail picks up the call, which  
sucks :(