Index: channels/chan_sip.c
===================================================================
--- channels/chan_sip.c	(revision 103333)
+++ channels/chan_sip.c	(working copy)
@@ -773,7 +773,6 @@
 
 /*!< The SIP socket definition */
 struct sip_socket {
-	ast_mutex_t *lock;
 	enum sip_transport type;
 	int fd;
 	uint16_t port;
@@ -2167,13 +2166,6 @@
 	AST_LIST_INSERT_TAIL(&threadl, me, list);
 	AST_LIST_UNLOCK(&threadl);
 
-	req.socket.lock = ast_calloc(1, sizeof(*req.socket.lock));
-
-	if (!req.socket.lock)
-		goto cleanup;
-
-	ast_mutex_init(req.socket.lock);
-
 	for (;;) {
 		memset(req.data, 0, sizeof(req.data));
 		req.len = 0;
@@ -2195,12 +2187,12 @@
 
 		/* Read in headers one line at a time */
 		while (req.len < 4 || strncmp((char *)&req.data + req.len - 4, "\r\n\r\n", 4)) {
-			if (req.socket.lock) 
-				ast_mutex_lock(req.socket.lock);
+			if (ser->lock) 
+				ast_mutex_lock(ser->lock);
 			if (!fgets(buf, sizeof(buf), ser->f))
-				goto cleanup;
-			if (req.socket.lock) 
-				ast_mutex_unlock(req.socket.lock);
+				goto cleanupunlock;
+			if (ser->lock) 
+				ast_mutex_unlock(ser->lock);
 			if (me->stop) 
 				 goto cleanup;
 			strncat(req.data, buf, sizeof(req.data) - req.len);
@@ -2209,12 +2201,12 @@
 		parse_copy(&reqcpy, &req);
 		if (sscanf(get_header(&reqcpy, "Content-Length"), "%d", &cl)) {
 			while (cl > 0) {
-				if (req.socket.lock) 
-					ast_mutex_lock(req.socket.lock);
+				if (ser->lock) 
+					ast_mutex_lock(ser->lock);
 				if (!fread(buf, (cl < sizeof(buf)) ? cl : sizeof(buf), 1, ser->f))
-					goto cleanup;
-				if (req.socket.lock) 
-					ast_mutex_unlock(req.socket.lock);
+					goto cleanupunlock;
+				if (ser->lock) 
+					ast_mutex_unlock(ser->lock);
 				if (me->stop)
 					goto cleanup;
 				cl -= strlen(buf);
@@ -2226,6 +2218,9 @@
 		handle_request_do(&req, &ser->requestor);
 	}
 
+cleanupunlock:
+	if (ser->lock)
+		ast_mutex_unlock(ser->lock);
 cleanup:
 	AST_LIST_LOCK(&threadl);
 	AST_LIST_REMOVE(&threadl, me, list);
@@ -2233,9 +2228,8 @@
 	ast_free(me);
 cleanup2:
 	fclose(ser->f);
-	ast_free(ser);
-	ast_free(req.socket.lock);
-
+	ser->fd = -1;
+	
 	return NULL;
 }
 
@@ -2509,8 +2503,8 @@
 	if (sip_prepare_socket(p) < 0)
 		return XMIT_ERROR;
 
-	if (p->socket.lock)
-		ast_mutex_lock(p->socket.lock);
+	if (p->socket.ser)
+		ast_mutex_lock(p->socket.ser->lock);
 
 	if (p->socket.type & SIP_TRANSPORT_UDP) 
 		res = sendto(p->socket.fd, data, len, 0, (const struct sockaddr *)dst, sizeof(struct sockaddr_in));
@@ -2521,8 +2515,8 @@
 			ast_debug(1, "No p->socket.ser->f len=%d\n", len);
 	} 
 
-	if (p->socket.lock)
-		ast_mutex_unlock(p->socket.lock);
+	if (p->socket.ser)
+		ast_mutex_unlock(p->socket.ser->lock);
 
 	if (res == -1) {
 		switch (errno) {
@@ -4175,6 +4169,7 @@
 		if (p->stimer->st_active == TRUE && p->stimer->st_schedid > -1)
 			ast_sched_del(sched, p->stimer->st_schedid);
 		ast_free(p->stimer);
+		p->stimer = NULL;
 	}
 
 	/* Unlink us from the owner if we have one */
@@ -5712,6 +5707,9 @@
 		int found = FALSE;
 		if (ast_strlen_zero(p->callid))
 			continue;
+		/* If there is a TCP/TLS server attached and it doesn't have a fd don't consider it */
+		if (p->socket.ser && p->socket.ser->fd == -1)
+			continue;
 		if (req->method == SIP_REGISTER)
 			found = (!strcmp(p->callid, callid));
 		else 
@@ -7333,7 +7331,6 @@
 	build_via(p);
 	ast_string_field_set(p, callid, callid);
 
-	p->socket.lock = req->socket.lock;
 	p->socket.type = req->socket.type;
 	p->socket.fd = req->socket.fd;
 	p->socket.port = req->socket.port;
@@ -17828,7 +17825,6 @@
 	req.socket.type = SIP_TRANSPORT_UDP;
 	req.socket.ser	= NULL;
 	req.socket.port = bindaddr.sin_port;
-	req.socket.lock = NULL;
 
 	handle_request_do(&req, &sin);
 
@@ -17863,13 +17859,15 @@
 
 	/* Process request, with netlock held, and with usual deadlock avoidance */
 	for (lockretry = 100; lockretry > 0; lockretry--) {
-		ast_mutex_lock(&netlock);
+		if (req->socket.type & SIP_TRANSPORT_UDP)
+			ast_mutex_lock(&netlock);
 
 		/* Find the active SIP dialog or create a new one */
 		p = find_call(req, sin, req->method);	/* returns p locked */
 		if (p == NULL) {
 			ast_debug(1, "Invalid SIP message - rejected , no callid, len %d\n", req->len);
-			ast_mutex_unlock(&netlock);
+			if (req->socket.type & SIP_TRANSPORT_UDP)
+				ast_mutex_unlock(&netlock);
 			return 1;
 		}
 
@@ -17881,7 +17879,8 @@
 			break;	/* locking succeeded */
 		ast_debug(1, "Failed to grab owner channel lock, trying again. (SIP call %s)\n", p->callid);
 		sip_pvt_unlock(p);
-		ast_mutex_unlock(&netlock);
+		if (req->socket.type & SIP_TRANSPORT_UDP)
+			ast_mutex_unlock(&netlock);
 		/* Sleep for a very short amount of time */
 		usleep(1);
 	}
@@ -17913,7 +17912,8 @@
 	if (p->owner && !nounlock)
 		ast_channel_unlock(p->owner);
 	sip_pvt_unlock(p);
-	ast_mutex_unlock(&netlock);
+	if (req->socket.type & SIP_TRANSPORT_UDP)
+		ast_mutex_unlock(&netlock);
 
 	return 1;
 }
@@ -17936,7 +17936,7 @@
 	AST_LIST_TRAVERSE(&threadl, th, list) {
 		if ((s->sin_family == th->ser->requestor.sin_family) &&
 			(s->sin_addr.s_addr == th->ser->requestor.sin_addr.s_addr) &&
-			(s->sin_port == th->ser->requestor.sin_port))  {
+			(s->sin_port == th->ser->requestor.sin_port)) {
 				AST_LIST_UNLOCK(&threadl);
 				return th->ser;
 			}
@@ -18199,7 +18199,8 @@
 		   get back to this point every millisecond or less)
 		*/
 		for (dialog = dialoglist; dialog; dialog = dialog->next) {
-			sip_pvt_lock(dialog);
+			if (ast_mutex_trylock(&dialog->pvt_lock))
+				break;
 			/* Check RTP timeouts and kill calls if we have a timeout set and do not get RTP */
 			check_rtp_timeout(dialog, t);
 			/* If we have sessions that needs to be destroyed, do it now */
Index: include/asterisk/tcptls.h
===================================================================
--- include/asterisk/tcptls.h	(revision 103333)
+++ include/asterisk/tcptls.h	(working copy)
@@ -125,6 +125,7 @@
 	SSL *ssl;   /* ssl state */
 /*	iint (*ssl_setup)(SSL *); */
 	int client;
+	ast_mutex_t *lock;
 	struct sockaddr_in requestor;
 	struct server_args *parent;
 };
Index: main/tcptls.c
===================================================================
--- main/tcptls.c	(revision 103333)
+++ main/tcptls.c	(working copy)
@@ -83,6 +83,8 @@
 
 HOOK_T server_read(struct server_instance *ser, void *buf, size_t count)
 {
+	if (ser->fd == -1)
+		return -1;
 #ifdef DO_SSL
 	if (ser->ssl)
 		return ssl_read(ser->ssl, buf, count);
@@ -92,6 +94,8 @@
 
 HOOK_T server_write(struct server_instance *ser, void *buf, size_t count)
 {
+	if (ser->fd == -1)
+		return -1;
 #ifdef DO_SSL
 	if (ser->ssl)
 		return ssl_write(ser->ssl, buf, count);
@@ -136,6 +140,12 @@
 		memcpy(&ser->requestor, &sin, sizeof(ser->requestor));
 
 		ser->client = 0;
+		ser->lock = ast_calloc(1, sizeof(*ser->lock));
+		if (!ser->lock) {
+			close(fd);
+			continue;
+		}
+		ast_mutex_init(ser->lock);
 			
 		if (ast_pthread_create_detached_background(&launched, NULL, ast_make_file_from_fd, ser)) {
 			ast_log(LOG_WARNING, "Unable to launch helper thread: %s\n", strerror(errno));
@@ -247,6 +257,10 @@
 	memcpy(&ser->requestor, &desc->sin, sizeof(ser->requestor));
 
 	ser->client = 1;
+	ser->lock = ast_calloc(1, sizeof(*ser->lock));
+	if (!ser->lock)
+		goto error;
+	ast_mutex_init(ser->lock);
 
 	if (desc->tls_cfg) {
 		desc->tls_cfg->enabled = 1;