map 404 correct per rfc 4497

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@5658 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_sofia/sofia_glue.c

@@ -1369,6 +1369,7 @@ switch_call_cause_t sofia_glue_sip_cause_to_freeswitch(int status)
 	case 603:
 		return SWITCH_CAUSE_CALL_REJECTED;
 	case 404:
+		return SWITCH_CAUSE_UNALLOCATED;
 	case 485:
 	case 604:
 		return SWITCH_CAUSE_NO_ROUTE_DESTINATION;