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new file mode 100644
index 0000000000000000000000000000000000000000..a7cb301b3057e6271aff992e45aae4d9481d1071
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diff --git a/sflphone-client-gnome/doc/C/figures/account_registration.png b/sflphone-client-gnome/doc/C/figures/account_registration.png
new file mode 100644
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diff --git a/sflphone-client-gnome/doc/C/sflphone.xml b/sflphone-client-gnome/doc/C/sflphone.xml
index 1d103c8587e164e3c69e20533bdeb8dfb4d85399..fa9b88dfb1f7b831466893957e2fbb439dd6a95e 100644
--- a/sflphone-client-gnome/doc/C/sflphone.xml
+++ b/sflphone-client-gnome/doc/C/sflphone.xml
@@ -181,7 +181,7 @@
 	</sect3>
 
 	<sect3 id="account_edit">
-		<title>Editing an configured account</title>
+		<title>Editing a configured account</title>
 		<para>To edit an existing account, perform the following steps:</para>
   		<orderedlist>
 			<listitem><para>Choose <menuchoice><guimenu>Edit</guimenu><guimenuitem>Manage accounts</guimenuitem></menuchoice>.</para></listitem>
@@ -214,8 +214,59 @@
 </sect2>
 
 	<sect2 id="account_advanced">
-		<title>SIP advanced features</title>
-		<para>The advanced security features are only available with SIP.</para>
+		<title>Advanced features</title>
+		<para>These features are only available with SIP.</para>
+		<para>Follow the indications to <link linkend='account_edit'>edit an account</link> and choose the <guimenu>Advanced</guimenu> tab.</para>
+		<!-- ==== Figure ==== -->
+        <figure id="account-advanced-fig">
+            <title>Advanced features configuration panel</title>
+            <screenshot>
+                <mediaobject>
+                    <imageobject>
+                        <imagedata fileref="figures/account_advanced.png" format="PNG"/>
+                    </imageobject>
+                </mediaobject>
+            </screenshot>
+        </figure>
+        <!-- ==== End of Figure ==== -->
+		<sect3 id="accounts_registration">
+			<title>Registration</title>
+				<para>You may set the expires header for a contact.</para>
+				<para>It basically represents the duration your registration will remain active. If you don't register again within that time, calls will no longer be routed to you. it should be not used as a keepalive mechanism though. The default value is 600 seconds (ten minutes).</para>
+				<note>To register to some VoIP services, you will need to set this value at at least 1600 seconds (Example: French VoIP server freephonie.net).
+				</note>
+		</sect3>
+		<sect3 id="accounts_stun">
+			<title>Network</title>
+			<para>This section enables you to set advanced network parameters.</para>
+				<variablelist>
+					<varlistentry>
+						<term><guilabel>Local address</guilabel></term>
+						<listitem><para>it is initialized to your private/local IP address. Calls will be routed to this address by default.</para></listitem>
+					</varlistentry>
+					<varlistentry>
+						<term><guilabel>Local port</guilabel></term>
+						<listitem><para>It is initialized to the default SIP port, 5060.</para></listitem>
+					</varlistentry>
+					<varlistentry>
+						<term><guilabel>Set published address and port</guilabel></term>
+						<listitem>
+						<itemizedlist>
+							<listitem>Using STUN
+							<para>If enabled, the core will try to initialize an UDP transport on the mapped address/port number that the NAT (Network Address Translator) has allocated to <application>SFLphone</application>.</para></listitem>
+							<listitem>Same as local parameters
+							</listitem>
+							<listitem>Manually
+							</listitem>
+						</itemizedlist>
+						</listitem>
+					</varlistentry>
+				</variablelist>
+		</sect3>
+	</sect2>
+	<sect2 id="account_security">
+		<title>Security features</title>
+			<para>These features are only available with SIP.</para>
 		<sect3 id="accounts_zrtp">
 			<title>Secure RTP</title>
 		</sect3>
diff --git a/sflphone-client-gnome/doc/Makefile.am b/sflphone-client-gnome/doc/Makefile.am
index fc8f89d31d95bd3e0cfe6361e6d7f76bc4250e3d..b98e32348b0dbc2bd444dd6b3c7a5c0f0faa5ecc 100644
--- a/sflphone-client-gnome/doc/Makefile.am
+++ b/sflphone-client-gnome/doc/Makefile.am
@@ -22,5 +22,6 @@ DOC_FIGURES =	figures/addressbook-button.png \
 				figures/configfile-settings.png		\
 				figures/notif-example.png			\
 				figures/systemtray-settings.png		\
-				figures/voicemail-notif.png
+				figures/voicemail-notif.png			\
+				figures/account_advanced.png
 DOC_LINGUAS = fr de es it zh_TW zh_HK zh_CN ko pl pt_BR pt ru