diff --git a/coreapi/address.c b/coreapi/address.c
index 1d893aede..4d4b1d2d6 100644
--- a/coreapi/address.c
+++ b/coreapi/address.c
@@ -136,5 +136,11 @@ void linphone_address_destroy(LinphoneAddress *u){
 	sal_address_destroy(u);
 }
 
+int linphone_address_get_port_int(const LinphoneAddress *u) {
+	return sal_address_get_port_int(u);
+}
+const char* linphone_address_get_port(const LinphoneAddress *u) {
+	return sal_address_get_port(u);
+}
 
 /** @} */
diff --git a/coreapi/linphonecore.c b/coreapi/linphonecore.c
index 8f86188ba..a68acd244 100644
--- a/coreapi/linphonecore.c
+++ b/coreapi/linphonecore.c
@@ -646,9 +646,16 @@ static void sip_config_read(LinphoneCore *lc)
 	}
 	linphone_core_enable_ipv6(lc,ipv6);
 	memset(&tr,0,sizeof(tr));
-	tr.udp_port=lp_config_get_int(lc->config,"sip","sip_port",5060);
-	tr.tcp_port=lp_config_get_int(lc->config,"sip","sip_tcp_port",0);
-
+	if (lp_config_get_int(lc->config,"sip","sip_random_port",0)) {
+		tr.udp_port=(0xDFF&+random())+1024;
+	} else {
+		tr.udp_port=lp_config_get_int(lc->config,"sip","sip_port",5060);
+	}
+	if (lp_config_get_int(lc->config,"sip","sip_tcp_random_port",0)) {
+		tr.tcp_port=(0xDFF&+random())+1024;
+	} else {
+		tr.tcp_port=lp_config_get_int(lc->config,"sip","sip_tcp_port",0);
+	}
 	/*start listening on ports*/
  	linphone_core_set_sip_transports(lc,&tr);
 
@@ -1553,7 +1560,7 @@ int linphone_core_set_sip_transports(LinphoneCore *lc, const LCSipTransports * t
  * is not used.
  * @ingroup network_parameters
 **/
-int linphone_core_get_sip_transport(LinphoneCore *lc, LCSipTransports *tr){
+int linphone_core_get_sip_transports(LinphoneCore *lc, LCSipTransports *tr){
 	memcpy(tr,&lc->sip_conf.transports,sizeof(*tr));
 	return 0;
 }
@@ -1639,6 +1646,16 @@ static void monitor_network_state(LinphoneCore *lc, time_t curtime){
 
 static void proxy_update(LinphoneCore *lc){
 	ms_list_for_each(lc->sip_conf.proxies,(void (*)(void*))&linphone_proxy_config_update);
+	MSList* list=ms_list_copy(lc->sip_conf.deleted_proxies);
+	for(;list!=NULL;list=list->next){
+		LinphoneProxyConfig* cfg = (LinphoneProxyConfig*) list->data;
+		if (ms_time(NULL) - cfg->deletion_date > 5) {
+			lc->sip_conf.deleted_proxies =ms_list_remove(lc->sip_conf.deleted_proxies,(void *)cfg);
+			ms_message("clearing proxy config for [%s]",linphone_proxy_config_get_addr(cfg));
+			linphone_proxy_config_destroy(cfg);
+		}
+	}
+	ms_list_free(list);
 }
 
 static void assign_buddy_info(LinphoneCore *lc, BuddyInfo *info){
diff --git a/coreapi/linphonecore.h b/coreapi/linphonecore.h
index 34a3483ea..b780956ff 100644
--- a/coreapi/linphonecore.h
+++ b/coreapi/linphonecore.h
@@ -75,6 +75,15 @@ const char *linphone_address_get_scheme(const LinphoneAddress *u);
 const char *linphone_address_get_display_name(const LinphoneAddress* u);
 const char *linphone_address_get_username(const LinphoneAddress *u);
 const char *linphone_address_get_domain(const LinphoneAddress *u);
+/**
+ * Get port number as an integer value.
+ *
+ */
+int linphone_address_get_port_int(const LinphoneAddress *u);
+/**
+ * Get port number, null if not present.
+ */
+const char* linphone_address_get_port(const LinphoneAddress *u);
 void linphone_address_set_display_name(LinphoneAddress *u, const char *display_name);
 void linphone_address_set_username(LinphoneAddress *uri, const char *username);
 void linphone_address_set_domain(LinphoneAddress *uri, const char *host);
diff --git a/coreapi/private.h b/coreapi/private.h
index cd3abd3c9..43f4e0f08 100644
--- a/coreapi/private.h
+++ b/coreapi/private.h
@@ -207,6 +207,7 @@ struct _LinphoneProxyConfig
 	bool_t publish;
 	bool_t dial_escape_plus;
 	void* user_data;
+	time_t deletion_date;
 };
 
 struct _LinphoneAuthInfo 
diff --git a/coreapi/proxy.c b/coreapi/proxy.c
index 80eb5d522..59d767303 100644
--- a/coreapi/proxy.c
+++ b/coreapi/proxy.c
@@ -22,6 +22,7 @@ Copyright (C) 2000  Simon MORLAT (simon.morlat@linphone.org)
 #include "sipsetup.h"
 #include "lpconfig.h"
 #include "private.h"
+#include "mediastreamer2/mediastream.h"
 
 
 #include <ctype.h>
@@ -244,7 +245,13 @@ static char *guess_contact_for_register(LinphoneProxyConfig *obj){
 		contact=linphone_address_new(obj->reg_identity);
 		linphone_address_set_domain (contact,localip);
 		linphone_address_set_port_int(contact,linphone_core_get_sip_port(obj->lc));
-		ret=linphone_address_as_string_uri_only (contact);
+		linphone_address_set_display_name(contact,NULL);
+		LCSipTransports tr;
+		linphone_core_get_sip_transports(obj->lc,&tr);
+		if (tr.udp_port <= 0 && tr.tcp_port>0) {
+			sal_address_add_param(contact,"transport","tcp");
+		}
+		ret=linphone_address_as_string(contact);
 		linphone_address_destroy(contact);
 	}
 	linphone_address_destroy (proxy);
@@ -499,6 +506,7 @@ void linphone_core_remove_proxy_config(LinphoneCore *lc, LinphoneProxyConfig *cf
 	lc->sip_conf.proxies=ms_list_remove(lc->sip_conf.proxies,(void *)cfg);
 	/* add to the list of destroyed proxies, so that the possible unREGISTER request can succeed authentication */
 	lc->sip_conf.deleted_proxies=ms_list_append(lc->sip_conf.deleted_proxies,(void *)cfg);
+	cfg->deletion_date=ms_time(NULL);
 	/* this will unREGISTER */
 	linphone_proxy_config_edit(cfg);
 	if (lc->default_proxy==cfg){
@@ -787,3 +795,4 @@ void * linphone_proxy_config_get_user_data(LinphoneProxyConfig *cr) {
 
 
 
+
diff --git a/coreapi/sal.h b/coreapi/sal.h
index 9790b8c71..d8d02edd9 100644
--- a/coreapi/sal.h
+++ b/coreapi/sal.h
@@ -48,6 +48,9 @@ const char *sal_address_get_display_name(const SalAddress* addr);
 char *sal_address_get_display_name_unquoted(const SalAddress *addr);
 const char *sal_address_get_username(const SalAddress *addr);
 const char *sal_address_get_domain(const SalAddress *addr);
+const char * sal_address_get_port(const SalAddress *addr);
+int sal_address_get_port_int(const SalAddress *uri);
+
 void sal_address_set_display_name(SalAddress *addr, const char *display_name);
 void sal_address_set_username(SalAddress *addr, const char *username);
 void sal_address_set_domain(SalAddress *addr, const char *host);
@@ -57,7 +60,7 @@ void sal_address_clean(SalAddress *addr);
 char *sal_address_as_string(const SalAddress *u);
 char *sal_address_as_string_uri_only(const SalAddress *u);
 void sal_address_destroy(SalAddress *u);
-
+void sal_address_add_param(SalAddress *u,const char* name,const char* value);
 
 
 
diff --git a/coreapi/sal_eXosip2.c b/coreapi/sal_eXosip2.c
index fa6fb5f11..bd3e7e664 100644
--- a/coreapi/sal_eXosip2.c
+++ b/coreapi/sal_eXosip2.c
@@ -1749,6 +1749,9 @@ char *sal_address_as_string_uri_only(const SalAddress *u){
 	osip_free(tmp);
 	return ret;
 }
+void sal_address_add_param(SalAddress *u,const char* name,const char* value) {
+	osip_uri_uparam_add	(((osip_from_t*)u)->url,ms_strdup(name),ms_strdup(value));
+}
 
 void sal_address_destroy(SalAddress *u){
 	osip_from_free((osip_from_t*)u);
@@ -1758,4 +1761,16 @@ void sal_set_keepalive_period(Sal *ctx,unsigned int value) {
 	ctx->keepalive_period=value;
 	eXosip_set_option (EXOSIP_OPT_UDP_KEEP_ALIVE, &value);
 }
+const char * sal_address_get_port(const SalAddress *addr) {
+	const osip_from_t *u=(const osip_from_t*)addr;
+	return null_if_empty(u->url->port);
+}
+int sal_address_get_port_int(const SalAddress *uri) {
+	const char* port = sal_address_get_port(uri);
+	if (port != NULL) {
+		return atoi(port);
+	} else {
+		return 5060;
+	}
+}
 
diff --git a/java/common/org/linphone/core/LinphoneCoreFactory.java b/java/common/org/linphone/core/LinphoneCoreFactory.java
index cd34cfe36..b3e2952fb 100644
--- a/java/common/org/linphone/core/LinphoneCoreFactory.java
+++ b/java/common/org/linphone/core/LinphoneCoreFactory.java
@@ -61,5 +61,5 @@ abstract public class LinphoneCoreFactory {
 	 */
 	abstract public  void setDebugMode(boolean enable);
 	
-	//abstract public void setLogHandler(LinphoneLogHandler handler);
+	abstract public void setLogHandler(LinphoneLogHandler handler);
 }