i couldn't find a pvar that would contain the transport protocol of received request as string. ir would be handy, for example, if i want to send the request out using the same transport it came in, for example: $du = "sip:SOME_IP:SOME_PORT;transport=" + $proto; i know that i can test PROTO and then set a pvar based on it, but the above would be more convenient. -- juha