set MFCR2_CATEGORY just when starting the pbx

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@196456 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_dahdi.c

@@ -7757,10 +7757,6 @@ static struct ast_channel *dahdi_new(struct dahdi_pvt *i, int state, int startpb
 	/* Assume calls are not idle calls unless we're told differently */
 	i->isidlecall = 0;
 	i->alreadyhungup = 0;
-#endif
-#ifdef HAVE_OPENR2
-	if (i->mfcr2call)
-		pbx_builtin_setvar_helper(tmp, "MFCR2_CATEGORY", openr2_proto_get_category_string(i->mfcr2_recvd_category));
 #endif
 	/* clear the fake event in case we posted one before we had ast_channel */
 	i->fake_event = 0;
@@ -7776,6 +7772,11 @@ static struct ast_channel *dahdi_new(struct dahdi_pvt *i, int state, int startpb
 		pbx_builtin_setvar_helper(tmp, v->name, v->value);
 	if (startpbx) {
+#ifdef HAVE_OPENR2
+		if (i->mfcr2call) {
+			pbx_builtin_setvar_helper(tmp, "MFCR2_CATEGORY", openr2_proto_get_category_string(i->mfcr2_recvd_category));
+		}
+#endif
 		if (ast_pbx_start(tmp)) {
 			ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
 			ast_hangup(tmp);