--- asterisk-1.2.12.1/res/res_features.c	2006-08-01 18:07:06.000000000 -0500
+++ asterisk-1.2.12.1-app-bridge/res/res_features.c	2006-10-03 18:20:01.290304513 -0500
@@ -175,6 +175,7 @@
 	struct ast_bridge_config bconfig;
 	struct ast_channel *chan;
 	struct ast_channel *peer;
+	int return_to_pbx;
 };
 
 static void check_goto_on_transfer(struct ast_channel *chan) 
@@ -217,10 +218,11 @@
 static void *ast_bridge_call_thread(void *data) 
 {
 	struct ast_bridge_thread_obj *tobj = data;
+	int res;
 
-	tobj->chan->appl = "Transferred Call";
+	tobj->chan->appl = !tobj->return_to_pbx ? "Transferred Call" : "ManagerBridge";
 	tobj->chan->data = tobj->peer->name;
-	tobj->peer->appl = "Transferred Call";
+	tobj->peer->appl = !tobj->return_to_pbx ? "Transferred Call" : "ManagerBridge";
 	tobj->peer->data = tobj->chan->name;
 	if (tobj->chan->cdr) {
 		ast_cdr_reset(tobj->chan->cdr, NULL);
@@ -232,8 +234,30 @@
 	}
 
 	ast_bridge_call(tobj->peer, tobj->chan, &tobj->bconfig);
-	ast_hangup(tobj->chan);
-	ast_hangup(tobj->peer);
+
+	if ( tobj->return_to_pbx ) {
+		if ( !ast_check_hangup(tobj->peer) ) {
+			ast_log(LOG_VERBOSE, "putting peer into PBX again\n");
+			res = ast_pbx_start(tobj->peer);
+			if ( AST_PBX_SUCCESS != res ) 
+				ast_log(LOG_WARNING, "FAILED continuing PBX on peer %s\n", tobj->peer->name);
+			else 
+				ast_log(LOG_DEBUG, "SUCCESS continuing PBX on peer %s\n", tobj->peer->name);
+		} else
+			ast_hangup(tobj->peer);
+		if ( !ast_check_hangup(tobj->chan) ) {
+			ast_log(LOG_VERBOSE, "putting chan into PBX again\n");
+			res = ast_pbx_start(tobj->chan);
+			if ( AST_PBX_SUCCESS != res )
+				ast_log(LOG_WARNING, "FAILED continuing PBX on chan %s\n", tobj->chan->name);
+			else 
+				ast_log(LOG_DEBUG, "SUCCESS continuing PBX on chan %s\n", tobj->chan->name);
+		} else
+			ast_hangup(tobj->chan);
+	} else {
+		ast_hangup(tobj->chan);
+		ast_hangup(tobj->peer);
+	}
 	tobj->chan = tobj->peer = NULL;
 	free(tobj);
 	tobj=NULL;
@@ -1843,6 +1867,173 @@
 	return RESULT_SUCCESS;
 }
 
+/* DCT: BEGIN APP_BRIDGE PATCH */
+static char mandescr_bridge[] = 
+"Description: Bridge two active channels together.\n"
+"Variables: (Names marked with * are required)\n"
+"	*Channel1: Channel to Bridge to Channel2\n"
+"	*Channel2: Channel to Bridge to Channel1.\n"
+"	     Tone: (Yes|No) Play Courtesy tone to Channel2.\n"
+"\n";
+
+static int action_bridge(struct mansession *s, struct message *m)
+{
+	char *channela = astman_get_header(m, "Channel1");
+	char *channelb = astman_get_header(m, "Channel2");
+	char *pt = astman_get_header(m, "Tone");
+	char *actionid = astman_get_header(m, "ActionID");
+	char buf[BUFSIZ];
+	struct ast_channel *chana = NULL, *chanb = NULL;
+	struct ast_channel *tmpchana = NULL;
+	struct ast_channel *tmpchanb = NULL;
+	struct ast_bridge_thread_obj *tobj = NULL;
+	int res = 0;
+	int playtone = 0;
+	int useactionid = 0;
+
+	/* Find out if we're supposed to play a tone or not */
+	playtone = ast_true(pt);
+
+	/* Find out if there's an ActionID */
+	if (!ast_strlen_zero(actionid)) {
+		useactionid = 1;
+	}
+
+	char sActionid[80];
+
+	/* We put the final \r\n in sActionid so that the
+	 * last %s isn't ever NULL and thus literally "%s"
+	 */
+
+	if (useactionid) {
+		snprintf(sActionid, sizeof(sActionid), "ActionID: %s\r\n", actionid);
+	} else {
+		strcpy(sActionid,"");
+	}
+
+	/*  Make sure we got input for both channels then find
+	 *  their actual channel pointers
+	 */
+
+	if (!ast_strlen_zero(channela) && !ast_strlen_zero(channelb)) {
+		chana = ast_get_channel_by_name_locked(channela);
+		chanb = ast_get_channel_by_name_locked(channelb);
+		if (chana)
+			ast_mutex_unlock(&chana->lock);
+		if (chanb)
+			ast_mutex_unlock(&chanb->lock);
+		
+		/* Make sure the pointers exist - err if not */
+		if (!chana) {
+			snprintf(buf, sizeof(buf), "Channel does not exist: %s", channela);
+			astman_send_error(s, m, buf);
+			return 0;
+		}
+		if (!chanb) {
+			snprintf(buf, sizeof(buf), "Channel does not exist: %s", channelb);
+			astman_send_error(s, m, buf);
+			return 0;
+		}
+	} else {
+		astman_send_error(s, m, "Missing parameter");
+		return 0;
+	}
+	
+	if (chana->_state != AST_STATE_UP) {
+		ast_answer(chana);
+	}
+	if (chanb->_state != AST_STATE_UP) {
+		ast_answer(chanb);
+	}
+	
+	tmpchana = ast_channel_alloc(0);
+	tmpchanb = ast_channel_alloc(0);
+
+	if (tmpchana) {
+		/* Rename the Bridge channels so that we can safely remove them after masqerading */
+		snprintf((char *) tmpchana->name, sizeof(tmpchana->name), "Bridge/%s", chana->name);
+		ast_moh_stop(chana);
+		ast_mutex_lock(&chana->lock);
+		ast_setstate(tmpchana, chana->_state);
+		tmpchana->readformat = chana->readformat;
+		tmpchana->writeformat = chana->writeformat;
+		ast_channel_masquerade(tmpchana, chana);
+		ast_mutex_lock(&tmpchana->lock);
+		ast_do_masquerade(tmpchana);
+		ast_explicit_goto(tmpchana, chana->context, chana->exten, chana->priority + 1);
+		ast_mutex_unlock(&tmpchana->lock);
+		ast_mutex_unlock(&chana->lock);
+	} else {
+		astman_send_error(s, m, "Unable to create temporary channels!");
+		ast_hangup(tmpchana);
+		ast_hangup(chana);
+		return 1;
+	}
+	if (tmpchanb) {
+		/* Rename the Bridge channels so that we can safely remove them after masqerading */
+		snprintf((char *) tmpchanb->name, sizeof(tmpchanb->name), "Bridge/%s", chanb->name);
+		ast_moh_stop(chanb);
+		ast_mutex_lock(&chanb->lock);
+		ast_setstate(tmpchanb, chanb->_state);
+		tmpchanb->readformat = chanb->readformat;
+		tmpchanb->writeformat = chanb->writeformat;
+		ast_channel_masquerade(tmpchanb, chanb);
+		ast_mutex_lock(&tmpchanb->lock);
+		ast_do_masquerade(tmpchanb);
+		ast_explicit_goto(tmpchanb, chanb->context, chanb->exten, chanb->priority + 1);
+		ast_mutex_unlock(&tmpchanb->lock);
+		ast_mutex_unlock(&chanb->lock);
+	} else {
+		snprintf(buf, sizeof(buf), "Unable to create temporary channels!");
+		astman_send_error(s, m, buf);
+		ast_hangup(tmpchanb);
+		ast_hangup(chanb);
+		return 1;
+	}
+	
+	/* Make the channels compatible - err if we fail in doing so.*/
+	res = ast_channel_make_compatible(tmpchana, tmpchanb);
+	if (res) {
+		ast_log(LOG_WARNING, "Could not make channels %s and %s compatible for bridge\n", chana->name, chanb->name);
+		astman_send_error(s, m, "Could not make channels compatible for bridge!");
+		ast_hangup(tmpchana);
+		ast_hangup(tmpchanb);
+		return 1;
+	} 
+	/* Set up the bridge thread object, and start the bridge */
+	tobj = malloc(sizeof(struct ast_bridge_thread_obj));
+	if (tobj) {
+		memset(tobj, 0, sizeof(struct ast_bridge_thread_obj));
+		tobj->chan = tmpchana;
+		tobj->peer = tmpchanb;
+		tobj->return_to_pbx = 1;
+		tobj->bconfig.play_warning = 0;
+		tobj->bconfig.warning_freq = 0;
+		tobj->bconfig.warning_sound = NULL;
+		tobj->bconfig.end_sound = NULL;
+		tobj->bconfig.start_sound = NULL;
+		tobj->bconfig.firstpass = 0;
+		tobj->bconfig.timelimit = 0;
+
+		if (playtone) {
+			if (!ast_strlen_zero(xfersound) && !ast_streamfile(tmpchanb, xfersound, tmpchanb->language)) {
+				if (ast_waitstream(tmpchanb, "") < 0)
+					ast_log(LOG_WARNING, "Failed to play courtesy tone!\n");
+			}
+		}
+		ast_bridge_call_thread_launch(tobj);
+		astman_send_ack(s, m, "Launched bridge thread with success");
+	} else {
+		ast_log(LOG_WARNING, "Unable to spawn new bridge on %s and %s: %s\n", tmpchana->name, tmpchanb->name, strerror(errno));
+		astman_send_error(s, m, "Unable to spawn new bridge thread");
+		ast_hangup(tmpchana);
+		ast_hangup(tmpchanb);
+		return 1;
+	}
+	return 0;
+}
+/* DCT: END APP_BRIDGE PATCH */
+
 static char showfeatures_help[] =
 "Usage: show features\n"
 "       Lists currently configured features.\n";
@@ -2141,6 +2332,191 @@
 	return ast_add_extension2(con, 1, ast_parking_ext(), 1, NULL, NULL, parkcall, strdup(""), FREE, registrar);
 }
 
+/* DCT: END SECOND APP_BRIDGE CHUNK */
+
+static char *app_bridge = "Bridge";
+
+static char *bridge_synopsis = "Bridge two channels.";
+
+static char *bridge_descrip =
+"Usage: Bridge(CHANNEL|PLAYTONE)\n"
+"  Allows the ability to bridge two channels via the dialplan.\n"
+"The current channel is bridged to the specified channel.\n"
+"Adding PLAYTONE will give an audio notice of the bridge.\n"
+"BRIDGERESULT will contain SUCCESS, FAILURE, LOOP, NONEXISTENT,\n."
+"INCOMPATIBLE, or MISSINGPARAM.";
+
+static int bridge_exec(struct ast_channel *chan, void *data)
+{
+	struct localuser *u;
+	struct ast_channel *current_dest_chan = NULL, *final_dest_chan = NULL;
+	int res         = 0;
+	int playtone    = 0;
+	char *tmp_data  = NULL;
+
+	AST_DECLARE_APP_ARGS(args,
+			AST_APP_ARG(dest_chan);
+			AST_APP_ARG(playtone);
+	);
+
+	if ( ast_strlen_zero(data) ) {
+		ast_log(LOG_WARNING, "Bridge requires 1 argument to specify the other bridge end channel\n");
+		return -1;
+	}
+
+	LOCAL_USER_ADD(u);
+
+	tmp_data = ast_strdupa(data);
+	if ( !tmp_data ) {
+		ast_log(LOG_ERROR, "Out of memory!\n");
+		LOCAL_USER_REMOVE(u);
+		return -1;
+	}
+
+	AST_STANDARD_APP_ARGS(args, tmp_data);
+
+	if ( args.playtone ) {
+		playtone = 1;
+	}
+
+	/* avoid same end points in bridge */
+	int cmplen = strlen(chan->name) < strlen(args.dest_chan) ? strlen(chan->name) : strlen(args.dest_chan);
+	if ( 0 == strncmp(chan->name, args.dest_chan, cmplen) ) {
+		ast_log(LOG_WARNING, "Unable to bridge channel to itself: %s %s\n", chan->name, args.dest_chan);
+		manager_event(EVENT_FLAG_CALL, "BridgeExec",
+				   "Response: Failed\r\n"
+				   "Reason: Unable to bridge channel to itself\r\n"
+				   "Channel1: %s\r\n"
+				   "Channel2: %s\r\n"
+				   "Tone: %s\r\n",
+				   chan->name, args.dest_chan, playtone ? "Yes" : "No");
+		pbx_builtin_setvar_helper(chan, "BRIDGERESULT", "LOOP");
+		LOCAL_USER_REMOVE(u);
+		return 0;
+	}
+
+	/* Make sure we got valid destiny end point */
+	current_dest_chan = ast_get_channel_by_name_locked(args.dest_chan);
+	if ( !current_dest_chan ) {
+		ast_log(LOG_WARNING, "Channel does not exist: %s\n", args.dest_chan);
+		manager_event(EVENT_FLAG_CALL, "BridgeExec",
+				   "Response: Failed\r\n"
+				   "Reason: end point does not exist\r\n"
+				   "Channel1: %s\r\n"
+				   "Channel2: %s\r\n"
+				   "Tone: %s\r\n",
+				   chan->name, args.dest_chan, playtone ? "Yes" : "No");
+		pbx_builtin_setvar_helper(chan, "BRIDGERESULT", "NONEXISTENT");
+		LOCAL_USER_REMOVE(u);
+		return 0;
+	}
+	ast_mutex_unlock(&current_dest_chan->lock);
+
+	/* answer the channel if is not */
+	if (current_dest_chan->_state != AST_STATE_UP) 
+		ast_answer(current_dest_chan);
+
+	/* try to allocate a place holder channel where current dest chan will be placed */
+	final_dest_chan = ast_channel_alloc(0);
+	if ( !final_dest_chan ) {
+		ast_log(LOG_WARNING, "Unable to create placeholder channel!\n");
+		manager_event(EVENT_FLAG_CALL, "BridgeExec",
+				   "Response: Failed\r\n"
+				   "Reason: Unable to create placeholder channel\r\n"
+				   "Channel1: %s\r\n"
+				   "Channel2: %s\r\n"
+				   "Tone: %s\r\n",
+				   chan->name, current_dest_chan->name, playtone ? "Yes" : "No");
+		pbx_builtin_setvar_helper(chan, "BRIDGERESULT", "FAILURE");
+		LOCAL_USER_REMOVE(u);
+		return 0;
+	}
+	
+	/* do masquerade to bring current dest chan here for the new bridge */
+
+	/* put placeholder a name to remember is used to masquerade a channel for Bridge */
+	snprintf(final_dest_chan->name, sizeof(final_dest_chan->name), "Bridge/%s", current_dest_chan->name);
+	ast_moh_stop(current_dest_chan); /* is really needed? */
+	ast_mutex_lock(&current_dest_chan->lock);
+	ast_setstate(final_dest_chan, current_dest_chan->_state);
+	final_dest_chan->readformat  = current_dest_chan->readformat;
+	final_dest_chan->writeformat = current_dest_chan->writeformat;
+	ast_channel_masquerade(final_dest_chan, current_dest_chan);
+	ast_mutex_lock(&final_dest_chan->lock);
+	ast_do_masquerade(final_dest_chan);
+	ast_explicit_goto(final_dest_chan, current_dest_chan->context, current_dest_chan->exten, current_dest_chan->priority + 1);
+	ast_mutex_unlock(&final_dest_chan->lock);
+	ast_mutex_unlock(&current_dest_chan->lock);
+
+	/* now current_dest_chan is a ZOMBIE and with soft hangup set to 1 and final_dest_chan is the end point */
+	/* Make the channels compatible - err if we fail in doing so.*/
+	res = ast_channel_make_compatible(chan, final_dest_chan);
+	if ( res < 0 ) {
+		ast_log(LOG_WARNING, "Could not make channels %s and %s compatible for bridge\n", chan->name, final_dest_chan->name);
+		manager_event(EVENT_FLAG_CALL, "BridgeExec",
+			   	   "Response: Failed\r\n"
+				   "Reason: Could not make channels compatible\r\n"
+			 	   "Channel1: %s\r\n"
+			 	   "Channel2: %s\r\n"
+				   "Tone: %s\r\n",
+				    chan->name, final_dest_chan->name, playtone ? "Yes" : "No");
+		ast_hangup(final_dest_chan); /* can we do something more friendly here? */
+		pbx_builtin_setvar_helper(chan, "BRIDGERESULT", "INCOMPATIBLE");
+		LOCAL_USER_REMOVE(u);
+		return 0;
+	} 
+	/* Report that the bridge will be successful */
+	manager_event(EVENT_FLAG_CALL, "BridgeExec",
+			   "Response: Success\r\n"
+			   "Channel1: %s\r\n"
+			   "Channel2: %s\r\n"
+			   "Tone: %s\r\n",
+			   chan->name, final_dest_chan->name, playtone ? "Yes" : "No");
+	
+	/* We have valid end points for the bridge, is just matter of setting up the bridge object and start the bridge */
+	struct ast_bridge_config bconfig;
+
+	bconfig.play_warning = 0;
+	bconfig.warning_freq = 0;
+	bconfig.warning_sound = NULL;
+	bconfig.end_sound = NULL;
+	bconfig.start_sound = NULL;
+	bconfig.firstpass = 0;
+	bconfig.timelimit = 0;
+
+	if ( playtone && !ast_strlen_zero(xfersound) ) { 
+		if ( !ast_streamfile(chan, xfersound, chan->language) ) {
+			if ( ast_waitstream(chan, "") < 0 ) {
+				ast_log(LOG_WARNING, "Failed to play courtesy tone on %s!\n", chan->name);
+			} else {
+				ast_log(LOG_DEBUG, "Success Played courtesy tone on %s!\n", chan->name);
+			}
+		}
+	}	
+		
+	res = ast_bridge_call(chan, final_dest_chan, &bconfig);
+	pbx_builtin_setvar_helper(chan, "BRIDGERESULT", "SUCCESS");
+
+	/* if the other end has not been hangup at bridge end, return it to its original place +1 priority */
+	if ( !ast_check_hangup(final_dest_chan) ) {
+		ast_log(LOG_DEBUG, "starting PBX in %s,%s,%d\n", final_dest_chan->context, final_dest_chan->exten, final_dest_chan->priority);
+		res = ast_pbx_start(final_dest_chan);
+		if ( res != AST_PBX_SUCCESS ) {
+			ast_log(LOG_WARNING, "FAILED continuing PBX on dest chan %s\n", final_dest_chan->name);
+			ast_hangup(final_dest_chan);
+		} else 
+			ast_log(LOG_DEBUG, "SUCCESS continuing PBX on chan %s\n", final_dest_chan->name);
+	} else {
+		ast_log(LOG_DEBUG, "dest end point hangup, not starting PBX\n");
+		ast_hangup(final_dest_chan);
+	}
+	LOCAL_USER_REMOVE(u);
+	return 0;
+}
+
+
+/* DCT: END SECOND APP_BRIDGE CHUNK */
+
 int reload(void) {
 	return load_config();
 }
@@ -2149,6 +2525,8 @@
 {
 	int res;
 	
+	ast_register_application(app_bridge, bridge_exec, bridge_synopsis, bridge_descrip);
+	
 	memset(parking_ext, 0, sizeof(parking_ext));
 	memset(parking_con, 0, sizeof(parking_con));
 
@@ -2162,6 +2540,7 @@
 		res = ast_register_application(parkcall, park_call_exec, synopsis2, descrip2);
 	if (!res) {
 		ast_manager_register("ParkedCalls", 0, manager_parking_status, "List parked calls" );
+		ast_manager_register2("Bridge", EVENT_FLAG_COMMAND, action_bridge, "Bridge two live channels", mandescr_bridge );
 	}
 	return res;
 }
@@ -2172,9 +2551,11 @@
 	STANDARD_HANGUP_LOCALUSERS;
 
 	ast_manager_unregister("ParkedCalls");
+	ast_manager_unregister("Bridge");
 	ast_cli_unregister(&showfeatures);
 	ast_cli_unregister(&showparked);
 	ast_unregister_application(parkcall);
+	ast_unregister_application(app_bridge);
 	return ast_unregister_application(parkedcall);
 }