[Kamailio-Users] Attended Transfer with asterisk

[ALAEDDINE abbech]

Hello, 

Does anybody got a working configuration to make an "attended call transfer" with a call through an Asterisk gateway? 

Example: 

PSTN --> Asterisk --> SER --+-- A 
                            |<---transfer call pstn to B 
                            +-- B 

The call will come from the PSTN Network and will go through "A". A sets the call on "Hold" and calls "B". 
After A is connected with B, A hangup and B got the call from PSTN. 
This is not working at the moment. 
Attended call transfer only with OpenSER and only with SIP-Phones is no Problem. 
But if the is an Asterisk as PSTN-GW in the game it will not work.