Index: asterisk-ooh323c/src/chan_h323.c
===================================================================
--- asterisk-ooh323c/src/chan_h323.c	(revision 293)
+++ asterisk-ooh323c/src/chan_h323.c	(revision 294)
@@ -790,7 +790,7 @@
       ast_mutex_lock(&p->lock);
       if(gH323Debug)
          ast_verbose("    hanging %s\n", p->username);
-      ast_tech_pvt = NULL;
+      ast->tech_pvt = NULL;
       if(!ast_test_flag(p, H323_ALREADYGONE)) {
          ast_mutex_lock(&ooh323c_cmd_lock);
          ooHangCall(p->callToken,