hi,
i am new to kamailio,

getting syntax error:
 
$var(test) =  "udp:"+$rd+":"+$rp;
t_relay_to_udp($var(test));

t_relay_to_udp($rd,$rp);

working with string.

is there any reason ? how to resolve it ?
i have to use database so i need to use variable.

any suggestion is appreciated.

thanks