[SR-Users] how to access reply headers

Hi, I have a registered handset which replies to an INVITE message from Kamailio with a "302 Moved Temporarily" message. The reason for this is because the user has set their handset to forward the call to another telephone number.  In a wireshark trace I can see the forwarded telephone number in the Contact header of the SIP message but I can't find a way to access this header via any variables. In the config file I have tried this: # Manage incoming repliesonreply_route[MANAGE_REPLY] {    ...     if(t_check_status("3[0-9][0-9]")) {         xlog("L_INFO", "test1: $hdr(Contact)");         xlog("L_INFO", "test2: $ct");     }     ... } , but in both cases the value returned is the Contact header of the original INVITE message and not the Contact shown in the "302 Moved Temporarily" reply message. How do I access the Contact header in the reply message? Regards, Mark.