Arturo Díaz Almagro napsal(a):
Thanks for your answers. In fact I am using Kamailio as SIP proxy, but some additional functionality is needed that Kamailio cannot afford. I need a B2BUA in the middle of the signaling between phones and Kamailio to get track of dialogs and to interfere on them when neccessary. For that reason I need FS to receive REGISTER messages and to forward them to Kamailio just adding a Via record. From your answers I conclude that FS cannot forward those REGISTER methods, don't I?
May be you can utilize some kind of dispatcher (kamailio|opensips|ser) in front of your registrar (kamailio) and B2BUA (FreeSWITCH) and route SIP request based on SIP method. In this kind of setup FS don't need to handle REGISTER messages at all and you get extra flexibility in SIP processing... Hope this helps :-) Best regards, kokoska.rokoska