[Asterisk-Users] Asterisk and Cisco AS53xx/54xx Access Server Platform

[Kevin P. Fleming]

Kevin P. Fleming wrote:

> If set to 'yes', and '183 Session Progress' has not already been sent, 
> then '180 Ringing' is sent _and_ audio ringback is also generated 
> (although I can't seem to figure out how that could work, since if '183 
> Session Progress' has not been sent, there is no early media in place).

Following up to my own email... the generation of the audio ringback 
will cause '183 Session Progress' to be sent first, so there is no 
problem here.