[Users] Passing variables inside t_relay() function

Hi, I want to know if it is possible to pass psuedo-variables, or avp variables insdie t_relay() function. Here is what I tried: t_relay("tcp:$rd:$rp"); t_relay("tcp:\$rd:"\$rp"); avp_write("$rd", "$avp(reqhost)"); avp_write("$rp", "$avp(reqport)"); t_relay("tcp:$avp(reqhost):$avp(reqport)"); Then, I got the following error: ERROR: parse_phostport: bad port number in .... ERROR:tm:fixup_phohstport2proxy: invalid parameter... ERROR: fix_actions: fixing failed (code=-1) at cfg line 513 Is there any way to solve this problem? I want to do this in order to specify which protocol to use for sending the SIP Request using the Req-URI domain and port. Thanks, Vivek __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com