From c49adea89c9a928f6012af0230339b6f966ba783 Mon Sep 17 00:00:00 2001
From: Jeremy McNamara <jj@nufone.net>
Date: Thu, 16 Dec 2004 04:25:49 +0000
Subject: [PATCH] Properly deal with Q.931 cause codes

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@4470 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 channels/chan_h323.c       | 27 ++++++++++++++++++++++-----
 channels/h323/ast_h323.cpp |  8 +++++---
 2 files changed, 27 insertions(+), 8 deletions(-)

diff --git a/channels/chan_h323.c b/channels/chan_h323.c
index a8404682ab..5457f17028 100755
--- a/channels/chan_h323.c
+++ b/channels/chan_h323.c
@@ -463,7 +463,6 @@ static struct oh323_peer *build_peer(char *name, struct ast_variable *v)
  */
 static int oh323_digit(struct ast_channel *c, char digit)
 {
-	ast_log(LOG_DEBUG, "Sending %c...\n", digit);
 	struct oh323_pvt *p = (struct oh323_pvt *) c->pvt->pvt;
 	if (p && p->rtp && (p->dtmfmode & H323_DTMF_RFC2833)) {
 		ast_rtp_senddigit(p->rtp, digit);
@@ -542,9 +541,8 @@ static int oh323_hangup(struct ast_channel *c)
 {
 	struct oh323_pvt *pvt = (struct oh323_pvt *) c->pvt->pvt;
 	int needcancel = 0;
-	if (h323debug) {
-		ast_log(LOG_DEBUG, "oh323_hangup(%s)\n", c->name);
-	}
+	int q931cause = AST_CAUSE_NORMAL_CLEARING;
+
 	if (!c->pvt->pvt) {
 		ast_log(LOG_DEBUG, "Asked to hangup channel not connected\n");
 		return 0;
@@ -568,9 +566,28 @@ static int oh323_hangup(struct ast_channel *c)
 	pvt->owner = NULL;
 	c->pvt->pvt = NULL;
 
+	if (c->hangupcause) {
+		q931cause = c->hangupcause;
+	} else {
+		char *cause = pbx_builtin_getvar_helper(c, "DIALSTATUS");
+		if (cause) {
+			if (!strcmp(cause, "CONGESTION")) {
+				q931cause = AST_CAUSE_NORMAL_CIRCUIT_CONGESTION;
+			} else if (!strcmp(cause, "BUSY")) {
+				q931cause = AST_CAUSE_USER_BUSY;
+			} else if (!strcmp(cause, "CHANISUNVAIL")) {
+				q931cause = AST_CAUSE_REQUESTED_CHAN_UNAVAIL;
+			} else if (!strcmp(cause, "NOANSWER")) {
+				q931cause = AST_CAUSE_NO_ANSWER;
+			} else if (!strcmp(cause, "CANCEL")) {
+				q931cause = AST_CAUSE_CALL_REJECTED;
+			}
+		}
+	}
+
 	/* Start the process if it's not already started */
 	if (!pvt->alreadygone) {
-		if (h323_clear_call((pvt->cd).call_token, c->hangupcause)) { 
+		if (h323_clear_call((pvt->cd).call_token, q931cause)) { 
 			ast_log(LOG_DEBUG, "ClearCall failed.\n");
 		}
 		pvt->needdestroy = 1;
diff --git a/channels/h323/ast_h323.cpp b/channels/h323/ast_h323.cpp
index fc77e9b857..91e8b85c16 100755
--- a/channels/h323/ast_h323.cpp
+++ b/channels/h323/ast_h323.cpp
@@ -301,7 +301,7 @@ BOOL MyH323EndPoint::ClearCall(const PString & token)
 	if (h323debug) {
 		cout << "\t-- ClearCall: Request to clear call with token " << token << endl;
 	}
-	return ClearCall(token, H323Connection::EndedByLocalUser);
+	return H323EndPoint::ClearCall(token, H323Connection::EndedByLocalUser);
 }
 
 void MyH323EndPoint::SendUserTone(const PString &token, char tone)
@@ -1287,13 +1287,15 @@ int h323_make_call(char *dest, call_details_t *cd, call_options_t *call_options)
 int h323_clear_call(const char *call_token, int cause)
 {
 	H225_ReleaseCompleteReason dummy;
-	H323Connection::CallEndReason r = H323Connection::NumCallEndReasons;
+	H323Connection::CallEndReason r = H323Connection::EndedByLocalUser;
 
 	if (!h323_end_point_exist()) {
 		return 1;
 	}
 
-	r = H323TranslateToCallEndReason((Q931::CauseValues)(cause), dummy);
+	if (cause) {
+		r = H323TranslateToCallEndReason((Q931::CauseValues)(cause), dummy);
+	}
 
         endPoint->ClearCall(PString(call_token), r);
 	return 0;