diff --git a/coreapi/linphonecore.c b/coreapi/linphonecore.c
index 6ceb9b127..d06f3cf3b 100644
--- a/coreapi/linphonecore.c
+++ b/coreapi/linphonecore.c
@@ -3664,6 +3664,7 @@ void sip_config_uninit(LinphoneCore *lc)
 	int i;
 	sip_config_t *config=&lc->sip_conf;
 	lp_config_set_int(lc->config,"sip","sip_port",config->transports.udp_port);
+	lp_config_set_int(lc->config,"sip","sip_tcp_port",config->transports.tcp_port);
 	lp_config_set_int(lc->config,"sip","guess_hostname",config->guess_hostname);
 	lp_config_set_string(lc->config,"sip","contact",config->contact);
 	lp_config_set_int(lc->config,"sip","inc_timeout",config->inc_timeout);
diff --git a/gtk/parameters.ui b/gtk/parameters.ui
index c594612cd..ffc98e234 100644
--- a/gtk/parameters.ui
+++ b/gtk/parameters.ui
@@ -28,7 +28,15 @@
   </object>
   <object class="GtkAdjustment" id="adjustment4">
     <property name="value">1</property>
-    <property name="lower">1</property>
+    <property name="lower">0</property>
+    <property name="upper">65535</property>
+    <property name="step_increment">1</property>
+    <property name="page_increment">10</property>
+    <property name="page_size">10</property>
+  </object>
+  <object class="GtkAdjustment" id="adjustment_tcp_port">
+    <property name="value">1</property>
+    <property name="lower">0</property>
     <property name="upper">65535</property>
     <property name="step_increment">1</property>
     <property name="page_increment">10</property>
@@ -252,7 +260,7 @@
                           <object class="GtkTable" id="table1">
                             <property name="visible">True</property>
                             <property name="events">GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK</property>
-                            <property name="n_rows">3</property>
+                            <property name="n_rows">4</property>
                             <property name="n_columns">2</property>
                             <child>
                               <object class="GtkSpinButton" id="video_rtp_port">
@@ -265,8 +273,8 @@
                               <packing>
                                 <property name="left_attach">1</property>
                                 <property name="right_attach">2</property>
-                                <property name="top_attach">2</property>
-                                <property name="bottom_attach">3</property>
+                                <property name="top_attach">3</property>
+                                <property name="bottom_attach">4</property>
                               </packing>
                             </child>
                             <child>
@@ -277,6 +285,21 @@
                                 <property name="adjustment">adjustment3</property>
                                 <signal name="value_changed" handler="linphone_gtk_audio_port_changed"/>
                               </object>
+                              <packing>
+                                <property name="left_attach">1</property>
+                                <property name="right_attach">2</property>
+                                <property name="top_attach">2</property>
+                                <property name="bottom_attach">3</property>
+                              </packing>
+                            </child>
+                            <child>
+                              <object class="GtkSpinButton" id="tcp_sip_port">
+                                <property name="visible">True</property>
+                                <property name="can_focus">True</property>
+                                <property name="events">GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK</property>
+                                <property name="adjustment">adjustment_tcp_port</property>
+                                <signal name="value_changed" handler="linphone_gtk_tcp_sip_port_changed"/>
+                              </object>
                               <packing>
                                 <property name="left_attach">1</property>
                                 <property name="right_attach">2</property>
@@ -285,12 +308,12 @@
                               </packing>
                             </child>
                             <child>
-                              <object class="GtkSpinButton" id="sip_port">
+                              <object class="GtkSpinButton" id="udp_sip_port">
                                 <property name="visible">True</property>
                                 <property name="can_focus">True</property>
                                 <property name="events">GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK</property>
                                 <property name="adjustment">adjustment4</property>
-                                <signal name="value_changed" handler="linphone_gtk_sip_port_changed"/>
+                                <signal name="value_changed" handler="linphone_gtk_udp_sip_port_changed"/>
                               </object>
                               <packing>
                                 <property name="left_attach">1</property>
@@ -305,8 +328,8 @@
                                 <property name="justify">right</property>
                               </object>
                               <packing>
-                                <property name="top_attach">2</property>
-                                <property name="bottom_attach">3</property>
+                                <property name="top_attach">3</property>
+                                <property name="bottom_attach">4</property>
                               </packing>
                             </child>
                             <child>
@@ -316,6 +339,18 @@
                                 <property name="label" translatable="yes">Audio RTP/UDP:</property>
                                 <property name="justify">right</property>
                               </object>
+                              <packing>
+                                <property name="top_attach">2</property>
+                                <property name="bottom_attach">3</property>
+                              </packing>
+                            </child>
+                            <child>
+                              <object class="GtkLabel" id="label_tcp_port">
+                                <property name="visible">True</property>
+                                <property name="events">GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK</property>
+                                <property name="label" translatable="yes">SIP (TCP):</property>
+                                <property name="justify">right</property>
+                              </object>
                               <packing>
                                 <property name="top_attach">1</property>
                                 <property name="bottom_attach">2</property>
diff --git a/gtk/propertybox.c b/gtk/propertybox.c
index 179a134b7..50aa58857 100644
--- a/gtk/propertybox.c
+++ b/gtk/propertybox.c
@@ -102,9 +102,22 @@ void linphone_gtk_ipv6_toggled(GtkWidget *w){
 				gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w)));
 }
 
-void linphone_gtk_sip_port_changed(GtkWidget *w){
-	linphone_core_set_sip_port(linphone_gtk_get_core(),
-			(gint)gtk_spin_button_get_value(GTK_SPIN_BUTTON(w)));
+void linphone_gtk_udp_sip_port_changed(GtkWidget *w){
+	LCSipTransports tr;
+	LinphoneCore *lc=linphone_gtk_get_core();
+
+	linphone_core_get_sip_transports(lc,&tr);
+	tr.udp_port = (gint)gtk_spin_button_get_value(GTK_SPIN_BUTTON(w));
+	linphone_core_set_sip_transports(lc,&tr);
+}
+
+void linphone_gtk_tcp_sip_port_changed(GtkWidget *w){
+	LCSipTransports tr;
+	LinphoneCore *lc=linphone_gtk_get_core();
+
+	linphone_core_get_sip_transports(lc,&tr);
+	tr.tcp_port = (gint)gtk_spin_button_get_value(GTK_SPIN_BUTTON(w));
+	linphone_core_set_sip_transports(lc,&tr);
 }
 
 void linphone_gtk_audio_port_changed(GtkWidget *w){
@@ -746,12 +759,16 @@ void linphone_gtk_show_parameters(void){
 	GtkWidget *codec_list=linphone_gtk_get_widget(pb,"codec_list");
 	int mtu;
 	int ui_advanced;
+	LCSipTransports tr;
 
 	/* NETWORK CONFIG */
 	gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(linphone_gtk_get_widget(pb,"ipv6_enabled")),
 				linphone_core_ipv6_enabled(lc));
-	gtk_spin_button_set_value(GTK_SPIN_BUTTON(linphone_gtk_get_widget(pb,"sip_port")),
-				linphone_core_get_sip_port(lc));
+	linphone_core_get_sip_transports(lc,&tr);
+	gtk_spin_button_set_value(GTK_SPIN_BUTTON(linphone_gtk_get_widget(pb,"udp_sip_port")),
+				tr.udp_port);
+	gtk_spin_button_set_value(GTK_SPIN_BUTTON(linphone_gtk_get_widget(pb,"tcp_sip_port")),
+				tr.tcp_port);
 	gtk_spin_button_set_value(GTK_SPIN_BUTTON(linphone_gtk_get_widget(pb,"audio_rtp_port")),
 				linphone_core_get_audio_port(lc));
 	gtk_spin_button_set_value(GTK_SPIN_BUTTON(linphone_gtk_get_widget(pb,"video_rtp_port")),