FS-11438: [freeswitch-core] recvonly channels left that way on blind transfer in…

FS-11438: [freeswitch-core] recvonly channels left that way on blind transfer in some cases #resolve

src/include/switch_core_media.h

@@ -381,7 +381,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_print(switch_core_session_t
 SWITCH_DECLARE(switch_status_t) switch_core_session_printf(switch_core_session_t *session, const char *fmt, ...);
 
 SWITCH_DECLARE(switch_msrp_session_t *) switch_core_media_get_msrp_session(switch_core_session_t *session);
-
+SWITCH_DECLARE(void) switch_core_media_set_smode(switch_core_session_t *session, switch_media_type_t type, switch_media_flow_t smode, switch_sdp_type_t sdp_type);
 																		
 SWITCH_END_EXTERN_C
 #endif

src/switch_core_media.c

@@ -4662,7 +4662,7 @@ static void check_stream_changes(switch_core_session_t *session, switch_sdp_type
 	}
 }
 
-static void switch_core_media_set_smode(switch_core_session_t *session, switch_media_type_t type, switch_media_flow_t smode, switch_sdp_type_t sdp_type)
+SWITCH_DECLARE(void) switch_core_media_set_smode(switch_core_session_t *session, switch_media_type_t type, switch_media_flow_t smode, switch_sdp_type_t sdp_type)
 {
 	switch_media_handle_t *smh;
 	switch_rtp_engine_t *engine;

src/switch_ivr.c

@@ -2096,7 +2096,8 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_session_transfer(switch_core_session_
 	const char *forwardvar = switch_channel_get_variable(channel, forwardvar_name);
 	int forwardval = 70;
 	const char *use_dialplan = dialplan, *use_context = context;
-
+	switch_media_flow_t flow;
+	
 	if (zstr(forwardvar)) {
 		forwardvar_name = SWITCH_MAX_FORWARDS_VARIABLE; /* fall back to max_forwards variable for setting maximum */
 		forwardvar = switch_channel_get_variable(channel, forwardvar_name);
@@ -2109,6 +2110,16 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_session_transfer(switch_core_session_
 		return SWITCH_STATUS_FALSE;
 	}
 
+	if ((flow = switch_core_session_media_flow(session, SWITCH_MEDIA_TYPE_AUDIO)) != SWITCH_MEDIA_FLOW_SENDRECV) {
+		switch_core_session_message_t msg = { 0 };
+
+		msg.message_id = SWITCH_MESSAGE_INDICATE_MEDIA_RENEG;
+		msg.from = __FILE__;
+
+		switch_core_media_set_smode(session, SWITCH_MEDIA_TYPE_AUDIO, SWITCH_MEDIA_FLOW_SENDRECV, SDP_TYPE_REQUEST);
+		switch_core_session_receive_message(session, &msg);
+	}
+	
 	max_forwards = switch_core_session_sprintf(session, "%d", forwardval);
 	switch_channel_set_variable(channel, forwardvar_name, max_forwards);