Hello
Regarding on Implementation the Music On Hold with Opener as SIP Proxy.
 
As I know OpenSER is not Media Proxy Server.
But I want to implement below call flow, that Bob has to Send the REFER method To Media Server ( Asterisk ).
But I Don't want this ( Alice --invite_bob---> OpenSER ---- invite_bob-->Asterisk-----invite_bob---> openser---> Bob ) this scenario will work ..
 
That User Agent has to send the REFER method to  OpenSER Proxy through --> Asterisk.
 
 
 
Alice                                    Bob                            Media Proxy..
 
 
 
 
Plz let me know, If anything is missed or something is else...
Thanks & Regards
Ravi Prakash Sunkara
VoIP Development Tech Lead