Hi ! I am new to freeswitch. Apologies if this question was already answered in the mailing list. I have a simple IVR application that answers a call and transfers the caller to a specific number. The transfer target requires that I offer the call to a gateway. I want to configure freeswitch to use tcp as the transport for the transfer target. The incoming call arrives over UDP. I configured the following in the gateway configuration: <param name="contact-params" value="transport=tcp"/> However, I don't see this configuration making FS use TCP. The call continues to use UDP. In addition, FS adds two contact parameters (transport=tcp; transport=udp) in the outgoing invite. Would appreciate if you can let me know if I am missing something. Venkatesh