diff --git a/apps/common/mobile/lib/controller/Collaboration.js b/apps/common/mobile/lib/controller/Collaboration.js
index 064f3ceef..cab5f8398 100644
--- a/apps/common/mobile/lib/controller/Collaboration.js
+++ b/apps/common/mobile/lib/controller/Collaboration.js
@@ -88,6 +88,7 @@ define([
                 this.api = api;
                 this.api.asc_registerCallback('asc_onAuthParticipantsChanged', _.bind(this.onChangeEditUsers, this));
                 this.api.asc_registerCallback('asc_onParticipantsChanged',     _.bind(this.onChangeEditUsers, this));
+                this.api.asc_registerCallback('asc_onConnectionStateChanged',  _.bind(this.onUserConnection, this));
                 this.api.asc_registerCallback('asc_onAddComment', _.bind(this.onApiAddComment, this));
                 this.api.asc_registerCallback('asc_onAddComments', _.bind(this.onApiAddComments, this));
                 this.api.asc_registerCallback('asc_onChangeCommentData', _.bind(this.onApiChangeCommentData, this));
@@ -229,6 +230,13 @@ define([
                     me.initComments();
                     Common.Utils.addScrollIfNeed('.page[data-page=comments-view]', '.page[data-page=comments-view] .page-content');
                 } else {
+                    var length = 0;
+                    _.each(editUsers, function (item) {
+                        if ((item.asc_getState()!==false) && !item.asc_getView())
+                            length++;
+                    });
+                    (length<1) && $('#item-edit-users').hide();
+
                     if(editor === 'DE' && !this.appConfig.canReview && !canViewReview) {
                         $('#reviewing-settings').hide();
                     }
@@ -241,6 +249,20 @@ define([
                 editUsers = users;
             },
 
+            onUserConnection: function(change){
+                var changed = false;
+                for (var uid in editUsers) {
+                    if (undefined !== uid) {
+                        var user = editUsers[uid];
+                        if (user && user.asc_getId() == change.asc_getId()) {
+                            editUsers[uid] = change;
+                            changed = true;
+                        }
+                    }
+                }
+                !changed && change && (editUsers[change.asc_getId()] = change);
+            },
+
             getUsersInfo: function() {
                 var usersArray = [];
                 _.each(editUsers, function(item){
@@ -250,7 +272,7 @@ define([
                     if (fio.length > 1) {
                         initials += fio[fio.length - 1].substring(0, 1).toUpperCase();
                     }
-                    if(!item.asc_getView()) {
+                    if((item.asc_getState()!==false) && !item.asc_getView()) {
                         var userAttr = {
                             color: item.asc_getColor(),
                             id: item.asc_getId(),
diff --git a/apps/common/mobile/lib/template/Collaboration.template b/apps/common/mobile/lib/template/Collaboration.template
index 8981fba35..00fe98b2e 100644
--- a/apps/common/mobile/lib/template/Collaboration.template
+++ b/apps/common/mobile/lib/template/Collaboration.template
@@ -11,7 +11,7 @@
             <div class="page-content">
                 <div class="list-block">
                     <ul>
-                        <li>
+                        <li id="item-edit-users">
                             <a id="list-edit-users" class="item-link" data-page="#edit-users-view">
                                 <div class="item-content">
                                     <div class="item-media">
diff --git a/apps/documenteditor/mobile/app/controller/Main.js b/apps/documenteditor/mobile/app/controller/Main.js
index f4072183b..6cd666fca 100644
--- a/apps/documenteditor/mobile/app/controller/Main.js
+++ b/apps/documenteditor/mobile/app/controller/Main.js
@@ -638,9 +638,9 @@ define([
                 $(document).on('contextmenu', _.bind(me.onContextMenu, me));
 
                 if (!me.appOptions.canReview) {
-                    var canViewReview = me.appOptions.isEdit || me.api.asc_HaveRevisionsChanges(true);
-                    DE.getController('Common.Controllers.Collaboration').setCanViewReview(canViewReview);
-                    if (canViewReview) {
+                    me.appOptions.canViewReview = me.appOptions.isEdit || me.api.asc_HaveRevisionsChanges(true);
+                    DE.getController('Common.Controllers.Collaboration').setCanViewReview(me.appOptions.canViewReview);
+                    if (me.appOptions.canViewReview) {
                         var viewReviewMode = Common.localStorage.getItem("de-view-review-mode");
                         if (viewReviewMode===null)
                             viewReviewMode = me.appOptions.customization && /^(original|final|markup)$/i.test(me.appOptions.customization.reviewDisplay) ? me.appOptions.customization.reviewDisplay.toLocaleLowerCase() : 'original';
@@ -648,6 +648,7 @@ define([
                         DE.getController('Common.Controllers.Collaboration').turnDisplayMode(viewReviewMode);
                     }
                 }
+                DE.getController('Toolbar').displayCollaboration();
 
                 Common.Gateway.documentReady();
 
diff --git a/apps/documenteditor/mobile/app/controller/Toolbar.js b/apps/documenteditor/mobile/app/controller/Toolbar.js
index 9821de2ce..da1b50097 100644
--- a/apps/documenteditor/mobile/app/controller/Toolbar.js
+++ b/apps/documenteditor/mobile/app/controller/Toolbar.js
@@ -52,6 +52,7 @@ define([
     DE.Controllers.Toolbar = Backbone.Controller.extend(_.extend((function() {
         // private
         var stateDisplayMode = false;
+        var _users = [];
 
         return {
             models: [],
@@ -78,12 +79,14 @@ define([
                 this.api.asc_registerCallback('asc_onCanRedo',      _.bind(this.onApiCanRevert, this, 'redo'));
                 this.api.asc_registerCallback('asc_onFocusObject',  _.bind(this.onApiFocusObject, this));
                 this.api.asc_registerCallback('asc_onCoAuthoringDisconnect', _.bind(this.onCoAuthoringDisconnect, this));
-                this.api.asc_registerCallback('asc_onAuthParticipantsChanged', _.bind(this.displayCollaboration, this));
-                this.api.asc_registerCallback('asc_onParticipantsChanged',     _.bind(this.displayCollaboration, this));
+                this.api.asc_registerCallback('asc_onAuthParticipantsChanged', _.bind(this.onUsersChanged, this));
+                this.api.asc_registerCallback('asc_onParticipantsChanged',     _.bind(this.onUsersChanged, this));
+                this.api.asc_registerCallback('asc_onConnectionStateChanged',  _.bind(this.onUserConnection, this));
                 Common.NotificationCenter.on('api:disconnect',      _.bind(this.onCoAuthoringDisconnect, this));
             },
 
             setMode: function (mode) {
+                this.mode = mode;
                 this.getView('Toolbar').setMode(mode);
             },
 
@@ -191,19 +194,38 @@ define([
                 DE.getController('Settings').hideModal();
             },
 
-            displayCollaboration: function(users) {
-                if(users !== undefined) {
+            displayCollaboration: function() {
+                if(_users !== undefined) {
                     var length = 0;
-                    _.each(users, function (item) {
-                        if (!item.asc_getView())
+                    _.each(_users, function (item) {
+                        if ((item.asc_getState()!==false) && !item.asc_getView())
                             length++;
                     });
-                    if (length > 0) {
-                        $('#toolbar-collaboration').show();
-                    } else {
+                    if (length < 1 && this.mode && !this.mode.canViewComments && !this.mode.canReview && !this.mode.canViewReview)
                         $('#toolbar-collaboration').hide();
+                    else
+                        $('#toolbar-collaboration').show();
+                }
+            },
+
+            onUsersChanged: function(users) {
+                _users = users;
+                this.displayCollaboration();
+            },
+
+            onUserConnection: function(change){
+                var changed = false;
+                for (var uid in _users) {
+                    if (undefined !== uid) {
+                        var user = _users[uid];
+                        if (user && user.asc_getId() == change.asc_getId()) {
+                            _users[uid] = change;
+                            changed = true;
+                        }
                     }
                 }
+                !changed && change && (_users[change.asc_getId()] = change);
+                this.displayCollaboration();
             },
 
             dlgLeaveTitleText   : 'You leave the application',
diff --git a/apps/presentationeditor/mobile/app/controller/Toolbar.js b/apps/presentationeditor/mobile/app/controller/Toolbar.js
index cb9b42416..2d1c9f527 100644
--- a/apps/presentationeditor/mobile/app/controller/Toolbar.js
+++ b/apps/presentationeditor/mobile/app/controller/Toolbar.js
@@ -51,6 +51,7 @@ define([
 
     PE.Controllers.Toolbar = Backbone.Controller.extend(_.extend((function() {
         // private
+        var _users = [];
 
         return {
             models: [],
@@ -77,13 +78,15 @@ define([
                 this.api.asc_registerCallback('asc_onCanRedo',  _.bind(this.onApiCanRevert, this, 'redo'));
                 this.api.asc_registerCallback('asc_onFocusObject',  _.bind(this.onApiFocusObject, this));
                 this.api.asc_registerCallback('asc_onCoAuthoringDisconnect', _.bind(this.onCoAuthoringDisconnect, this));
-                this.api.asc_registerCallback('asc_onAuthParticipantsChanged', _.bind(this.displayCollaboration, this));
-                this.api.asc_registerCallback('asc_onParticipantsChanged',     _.bind(this.displayCollaboration, this));
+                this.api.asc_registerCallback('asc_onAuthParticipantsChanged', _.bind(this.onUsersChanged, this));
+                this.api.asc_registerCallback('asc_onParticipantsChanged',     _.bind(this.onUsersChanged, this));
+                this.api.asc_registerCallback('asc_onConnectionStateChanged',  _.bind(this.onUserConnection, this));
                 Common.NotificationCenter.on('api:disconnect',      _.bind(this.onCoAuthoringDisconnect, this));
                 this.api.asc_registerCallback('asc_onCountPages',   _.bind(this.onApiCountPages, this));
             },
 
             setMode: function (mode) {
+                this.mode = mode;
                 this.getView('Toolbar').setMode(mode);
             },
 
@@ -200,19 +203,38 @@ define([
                 PE.getController('Settings').hideModal();
             },
 
-            displayCollaboration: function(users) {
-                if(users !== undefined) {
+            displayCollaboration: function() {
+                if(_users !== undefined) {
                     var length = 0;
-                    _.each(users, function (item) {
-                        if (!item.asc_getView())
+                    _.each(_users, function (item) {
+                        if ((item.asc_getState()!==false) && !item.asc_getView())
                             length++;
                     });
-                    if (length > 0) {
-                        $('#toolbar-collaboration').show();
-                    } else {
+                    if (length < 1 && this.mode && !this.mode.canViewComments)
                         $('#toolbar-collaboration').hide();
+                    else
+                        $('#toolbar-collaboration').show();
+                }
+            },
+
+            onUsersChanged: function(users) {
+                _users = users;
+                this.displayCollaboration();
+            },
+
+            onUserConnection: function(change){
+                var changed = false;
+                for (var uid in _users) {
+                    if (undefined !== uid) {
+                        var user = _users[uid];
+                        if (user && user.asc_getId() == change.asc_getId()) {
+                            _users[uid] = change;
+                            changed = true;
+                        }
                     }
                 }
+                !changed && change && (_users[change.asc_getId()] = change);
+                this.displayCollaboration();
             },
 
             dlgLeaveTitleText   : 'You leave the application',
diff --git a/apps/spreadsheeteditor/mobile/app/controller/Toolbar.js b/apps/spreadsheeteditor/mobile/app/controller/Toolbar.js
index 46328b544..74a778ffb 100644
--- a/apps/spreadsheeteditor/mobile/app/controller/Toolbar.js
+++ b/apps/spreadsheeteditor/mobile/app/controller/Toolbar.js
@@ -55,6 +55,7 @@ define([
             book: false,
             sheet: false
         };
+        var _users = [];
 
         return {
             models: [],
@@ -84,14 +85,16 @@ define([
                 this.api.asc_registerCallback('asc_onWorksheetLocked', _.bind(this.onApiWorksheetLocked, this));
                 this.api.asc_registerCallback('asc_onActiveSheetChanged', _.bind(this.onApiActiveSheetChanged, this));
                 this.api.asc_registerCallback('asc_onCoAuthoringDisconnect', _.bind(this.onCoAuthoringDisconnect, this));
-                this.api.asc_registerCallback('asc_onAuthParticipantsChanged', _.bind(this.displayCollaboration, this));
-                this.api.asc_registerCallback('asc_onParticipantsChanged',     _.bind(this.displayCollaboration, this));
+                this.api.asc_registerCallback('asc_onAuthParticipantsChanged', _.bind(this.onUsersChanged, this));
+                this.api.asc_registerCallback('asc_onParticipantsChanged',     _.bind(this.onUsersChanged, this));
+                this.api.asc_registerCallback('asc_onConnectionStateChanged',  _.bind(this.onUserConnection, this));
                 Common.NotificationCenter.on('api:disconnect',      _.bind(this.onCoAuthoringDisconnect, this));
 
                 Common.NotificationCenter.on('sheet:active', this.onApiActiveSheetChanged.bind(this));
             },
 
             setMode: function (mode) {
+                this.mode = mode;
                 this.getView('Toolbar').setMode(mode);
             },
 
@@ -219,19 +222,38 @@ define([
                 SSE.getController('Settings').hideModal();
             },
 
-            displayCollaboration: function(users) {
-                if(users !== undefined) {
+            displayCollaboration: function() {
+                if(_users !== undefined) {
                     var length = 0;
-                    _.each(users, function (item) {
-                        if (!item.asc_getView())
+                    _.each(_users, function (item) {
+                        if ((item.asc_getState()!==false) && !item.asc_getView())
                             length++;
                     });
-                    if (length > 0) {
-                        $('#toolbar-collaboration').show();
-                    } else {
+                    if (length < 1 && this.mode && !this.mode.canViewComments)
                         $('#toolbar-collaboration').hide();
+                    else
+                        $('#toolbar-collaboration').show();
+                }
+            },
+
+            onUsersChanged: function(users) {
+                _users = users;
+                this.displayCollaboration();
+            },
+
+            onUserConnection: function(change){
+                var changed = false;
+                for (var uid in _users) {
+                    if (undefined !== uid) {
+                        var user = _users[uid];
+                        if (user && user.asc_getId() == change.asc_getId()) {
+                            _users[uid] = change;
+                            changed = true;
+                        }
                     }
                 }
+                !changed && change && (_users[change.asc_getId()] = change);
+                this.displayCollaboration();
             },
 
             dlgLeaveTitleText   : 'You leave the application',