diff --git a/src/core/xmpp.py b/src/core/xmpp.py
index 01f66353..c8631d78 100644
--- a/src/core/xmpp.py
+++ b/src/core/xmpp.py
@@ -350,6 +350,9 @@ class SatPresenceProtocol(xmppim.PresenceClientProtocol):
         if None in statuses:  # we only want string keys
             statuses[C.PRESENCE_STATUSES_DEFAULT] = statuses.pop(None)
 
+        if not self.host.trigger.point("presenceReceived", entity, show, priority, statuses, self.parent.profile):
+            return
+
         self.host.memory.setPresenceStatus(entity, show or "",
                                            int(priority), statuses,
                                            self.parent.profile)
@@ -367,11 +370,12 @@ class SatPresenceProtocol(xmppim.PresenceClientProtocol):
 
         if None in statuses:  # we only want string keys
             statuses[C.PRESENCE_STATUSES_DEFAULT] = statuses.pop(None)
-        self.host.memory.setPresenceStatus(entity, "unavailable", 0, statuses, self.parent.profile)
 
         if not self.host.trigger.point("presenceReceived", entity, "unavailable", 0, statuses, self.parent.profile):
             return
 
+        self.host.memory.setPresenceStatus(entity, C.PRESENCE_UNAVAILABLE, 0, statuses, self.parent.profile)
+
         # now it's time to notify frontends
         self.host.bridge.presenceUpdate(entity.full(), "unavailable", 0, statuses, self.parent.profile)
 
diff --git a/src/memory/params.py b/src/memory/params.py
index fd847fc3..97272636 100644
--- a/src/memory/params.py
+++ b/src/memory/params.py
@@ -39,7 +39,6 @@ class Params(object):
     """This class manage parameters with xml"""
     ### TODO: add desciption in params
 
-    #TODO: move Watched in a plugin
     #TODO: when priority is changed, a new presence stanza must be emitted
     #TODO: int type (Priority should be int instead of string)
     default_xml = u"""
@@ -63,9 +62,6 @@ class Params(object):
             <param name="autoconnect" label="%(autoconnect_label)s" value="true" type="bool" security="0" />
             <param name="autodisconnect" label="%(autodisconnect_label)s" value="false"  type="bool" security="0" />
         </category>
-        <category name="Misc" label="%(category_misc)s">
-            <param name="Watched" value="test@Jabber.goffi.int" type="string" />
-        </category>
     </individual>
     </params>
     """ % {
diff --git a/src/plugins/plugin_misc_watched.py b/src/plugins/plugin_misc_watched.py
new file mode 100755
index 00000000..00d76dc1
--- /dev/null
+++ b/src/plugins/plugin_misc_watched.py
@@ -0,0 +1,81 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# SàT plugin to be notified on some entities presence
+# Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Jérôme Poisson (goffi@goffi.org)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from sat.core.i18n import _, D_
+from sat.core.constants import Const as C
+from sat.core.log import getLogger
+log = getLogger(__name__)
+from sat.core import exceptions
+from sat.tools import xml_tools
+
+
+PLUGIN_INFO = {
+    "name": "Watched",
+    "import_name": "WATCHED",
+    "type": "Misc",
+    "protocols": [],
+    "dependencies": [],
+    "main": "Watched",
+    "handler": "no",
+    "description": _("""Watch for entities presence, and send notification accordingly""")
+}
+
+
+CATEGORY = D_("Misc")
+NAME = "Watched"
+NOTIF = D_("Watched entity {entity} is connected")
+
+
+class Watched(object):
+    params = """
+    <params>
+    <individual>
+    <category name="{category_name}" label="{category_label}">
+        <param name="{name}" label="{label}" type="jids_list" security="0" />
+    </category>
+    </individual>
+    </params>
+    """.format(category_name=CATEGORY,
+               category_label=_(CATEGORY),
+               name=NAME,
+               label=_(NAME),
+              )
+
+    def __init__(self, host):
+        log.info(_("Watched initialisation"))
+        self.host = host
+        host.memory.updateParams(self.params)
+        host.trigger.add("presenceReceived", self._presenceReceivedTrigger)
+
+    def _presenceReceivedTrigger(self, entity, show, priority, statuses, profile):
+        if show == C.PRESENCE_UNAVAILABLE:
+            return True
+
+        # we check that the previous presence was unavailable (no notification else)
+        try:
+            old_show = self.host.memory.getEntityDatum(entity, "presence", profile).show
+        except (KeyError, exceptions.UnknownEntityError):
+            old_show = C.PRESENCE_UNAVAILABLE
+
+        if old_show == C.PRESENCE_UNAVAILABLE:
+            watched = self.host.memory.getParamA(NAME, CATEGORY, profile_key=profile)
+            if entity in watched or entity.userhostJID() in watched:
+                self.host.actionNew({'xmlui': xml_tools.note(_(NOTIF).format(entity=entity.full())).toXml()}, profile)
+
+        return True
diff --git a/src/plugins/plugin_sec_otr.py b/src/plugins/plugin_sec_otr.py
index c05d5291..19d64f03 100644
--- a/src/plugins/plugin_sec_otr.py
+++ b/src/plugins/plugin_sec_otr.py
@@ -208,7 +208,7 @@ class OTR(object):
         host.importMenu((MAIN_MENU, D_("End session")), self._endSession, security_limit=0, help_string=D_("Finish an OTR session"), type_=C.MENU_SINGLE)
         host.importMenu((MAIN_MENU, D_("Authenticate")), self._authenticate, security_limit=0, help_string=D_("Authenticate user/see your fingerprint"), type_=C.MENU_SINGLE)
         host.importMenu((MAIN_MENU, D_("Drop private key")), self._dropPrivKey, security_limit=0, type_=C.MENU_SINGLE)
-        host.trigger.add("presenceReceived", self.presenceReceivedTrigger)
+        host.trigger.add("presenceReceived", self._presenceReceivedTrigger)
 
     def _fixPotr(self):
         # FIXME: potr fix for bad unicode handling
@@ -472,8 +472,8 @@ class OTR(object):
             log.debug(u"sending message unencrypted")
             return True
 
-    def presenceReceivedTrigger(self, entity, show, priority, statuses, profile):
-        if show != "unavailable":
+    def _presenceReceivedTrigger(self, entity, show, priority, statuses, profile):
+        if show != C.PRESENCE_UNAVAILABLE:
             return True
         if not entity.resource:
             entity.resource = self.host.memory.getMainResource(entity, profile)  # FIXME: temporary and unsecure, must be changed when frontends are refactored