Hi all, I want to do a special SIP using and I dont know how to configure it with: originate/bridge/transfer no_media and so on May be it is not possible with freeswitch? Here comes scenario: - one sender device that sends multicast RTP stream to network - one or more receiver devices that only receive RTP data from network The codec is a proprietary one (41), freeswitch can ignore all RTP data. Sender has to get attributs: u=file:/C:/dap/123.wav c=IN IP4 239.194.0.14 t=0 0 m=audio 7280 RTP/AVP 41 a=rtpmap:41 PCMA/16000 a=recvonly b=AS:128 Receiver has to get attributs: c=IN IP4 239.193.201.69 t=0 0 a=specialExtension:2 a=type:broadcast m=audio 7280 RTP/AVP 41 a=rtpmap:41 PCMA/16000 a=sendonly Is it possible to use freeswitch API to do this? Many thanks in advance, Thomas Sluschny