[SR-Users] save a Q850 cause reason from a reply

Hi guys..... the header searching and saving the Q850 code didn't work. here is what i wrote in the cfg, in the failure route: *# manage failure routing cases failure_route[MANAGE_FAILURE] { xlog("L_CRIT", "failure \n"); if($avp(CAR)=="CALLOUT"){ xlog("L_CRIT", "failure in callout \n"); ##if(is_present_hf("Reason")) { xlog("L_CRIT", "failure in reason\n"); $avp(Q850)=$(hdr(Reason){param.value,cause}{s.int}); xlog("L_CRIT", "failure in reason $avp(Q850)\n"); ##}* here is the log print...... * 3(3433) CRITICAL: <script>: failure 3(3433) CRITICAL: <script>: failure in callout 3(3433) CRITICAL: <script>: failure in reason 3(3433) ERROR: <core> [lvalue.c:347]: non existing right pvar 3(3433) ERROR: <core> [lvalue.c:407]: assignment failed at pos: (524,15-524,54) 3(3433) CRITICAL: <script>: failure in reason <null>* the command *is_present_hf("Reason")) * is under ## because of tests... when it was in use, the script didn't even went in the "if", the command didn't recognize the header. ** here is the sip trace for the 486, the header is there... * Message Header Call-ID: 6994099017399497785-1328029200-13379 From: <sip:36264529;ss7-cpc=10;cpc=ordinary@172.16.10.3 ;user=phone>;tag=6994099017399497785 To: <sip:39955011@172.16.60.161;user=phone>;tag=9299942026613191738 CSeq: 1 INVITE Via: SIP/2.0/UDP 172.16.60.161;received=172.16.60.161;branch=z9hG4bK08d6.c653f346.2,SIP/2.0/UDP 172.16.10.3:5060;branch=z9hG4bK-6110080000017439-ac100a03-1 Supported: timer,100rel Reason: Q.850;cause=17;text="UserBusy" Reason Protocols: Q.850 Cause: 17(0x11)[User busy] Content-Length: 0*