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&#39;t I?<br>
<br>Again, thanks for your answers. I will try to investigate a lot more about FS and its capabilities.<br>Regards.<br clear="all"><br>-- <br>Arturo Díaz<br><br>Contact me on<br>FWD: 870436<br>Skype: arturo.diaz.almagro<br>