Make DAHDISendCallreroutingFacility wait 5 seconds for a reply before disconnecting the call.

Some switches may not handle the call-deflection/call-rerouting message if
the call is disconnected too soon after being sent.  Asteisk was not
waiting for any reply before disconnecting the call.

* Added a 5 second delay before disconnecting the call to wait for a
potential response if the peer does not disconnect first.

(closes issue ASTERISK-19708)
Reported by: mehdi Shirazi
Patches:
      jira_asterisk_19708_v1.8.patch (license #5621) patch uploaded by rmudgett
Tested by: rmudgett


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@363730 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_dahdi.c

@@ -5910,7 +5910,7 @@ static int dahdi_send_callrerouting_facility_exec(struct ast_channel *chan, cons
 	/* Data will be our digit string */
 	struct dahdi_pvt *pvt;
 	char *parse;
-	int res = -1;
+	int res;
 	AST_DECLARE_APP_ARGS(args,
 		AST_APP_ARG(destination);
 		AST_APP_ARG(original);
@@ -5957,10 +5957,17 @@ static int dahdi_send_callrerouting_facility_exec(struct ast_channel *chan, cons
 		args.reason = NULL;
 	}
 
-	pri_send_callrerouting_facility_exec(pvt->sig_pvt, chan->_state, args.destination,
-		args.original, args.reason);
+	res = pri_send_callrerouting_facility_exec(pvt->sig_pvt, chan->_state,
+		args.destination, args.original, args.reason);
+	if (!res) {
+		/*
+		 * Wait up to 5 seconds for a reply before hanging up this call
+		 * leg if the peer does not disconnect first.
+		 */
+		ast_safe_sleep(chan, 5000);
+	}
 
-	return res;
+	return -1;
 }
 #endif	/* defined(HAVE_PRI_PROG_W_CAUSE) */
 #endif	/* defined(HAVE_PRI) */

channels/sig_pri.c

@@ -8010,7 +8010,7 @@ int pri_send_keypad_facility_exec(struct sig_pri_chan *p, const char *digits)
 
 int pri_send_callrerouting_facility_exec(struct sig_pri_chan *p, enum ast_channel_state chanstate, const char *destination, const char *original, const char *reason)
 {
-	int res = -1;
+	int res;
 
 	sig_pri_lock_private(p);