diff --git a/funcs/func_presencestate.c b/funcs/func_presencestate.c
index 51df750982..66a3f2ef5b 100644
--- a/funcs/func_presencestate.c
+++ b/funcs/func_presencestate.c
@@ -71,7 +71,8 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 			<parameter name="options" required="false">
 			  <optionlist>
 			    <option name="e">
-				  <para>Base-64 encode the data.</para>
+				  <para>On Write - Use this option when the subtype and message provided are Base64
+					encoded. On Read - Retrieves message/subtype in Base64 encoded form.</para>
 				</option>
 			  </optionlist>
 			</parameter>
@@ -85,6 +86,8 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 			the dialplan.  The <literal>CustomPresence:</literal> prefix must be used. For example:</para>
 			<para>Set(PRESENCE_STATE(CustomPresence:lamp1)=away,temporary,Out to lunch)</para>
 			<para>Set(PRESENCE_STATE(CustomPresence:lamp2)=dnd,,Trying to get work done)</para>
+			<para>Set(PRESENCE_STATE(CustomPresence:lamp3)=xa,T24gdmFjYXRpb24=,,e)</para>
+			<para>Set(BASE64_LAMP3_PRESENCE=${PRESENCE_STATE(CustomPresence:lamp3,subtype,e)})</para>
 			<para>You can subscribe to the status of a custom presence state using a hint in
 			the dialplan:</para>
 			<para>exten => 1234,hint,CustomPresence:lamp1</para>