diff --git a/Gemfile b/Gemfile
index 75a98e3..ab9c5c0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -25,6 +25,7 @@ gem 'pg'
 gem 'devise'
 gem 'activeadmin', github: 'activeadmin'
 gem 'rollbar', '~> 2.5.0'
+gem 'gcm'
 
 # Use ActiveModel has_secure_password
 # gem 'bcrypt', '~> 3.1.7'
diff --git a/Gemfile.lock b/Gemfile.lock
index 5f8e9ac..75858cc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -94,11 +94,17 @@ GEM
     formtastic (3.1.3)
       actionpack (>= 3.2.13)
     formtastic_i18n (0.4.1)
+    gcm (0.1.0)
+      httparty
+      json
     globalid (0.3.6)
       activesupport (>= 4.1.0)
     has_scope (0.6.0)
       actionpack (>= 3.2, < 5)
       activesupport (>= 3.2, < 5)
+    httparty (0.13.5)
+      json (~> 1.8)
+      multi_xml (>= 0.5.2)
     i18n (0.7.0)
     inherited_resources (1.6.0)
       actionpack (>= 3.2, < 5)
@@ -127,6 +133,7 @@ GEM
     mini_portile (0.6.2)
     minitest (5.8.1)
     multi_json (1.11.2)
+    multi_xml (0.5.5)
     nokogiri (1.6.6.2)
       mini_portile (~> 0.6.0)
     orm_adapter (0.5.0)
@@ -246,6 +253,7 @@ DEPENDENCIES
   coffee-rails (~> 4.1.0)
   devise
   factory_girl_rails
+  gcm
   jbuilder (~> 2.0)
   jquery-rails
   pg
diff --git a/config/application.rb b/config/application.rb
index a060909..684c134 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -35,4 +35,5 @@ module OnemdmServer
     config.generators.helper = false
   end
 end
-STATUS_CLASSES ={active: :ok,missing: :warning,dead: :error}
+STATUS_CLASSES = {active: :ok,missing: :warning,dead: :error}
+GCM_KEY = "AIzaSyCZ3lVhV2CbIcZ22f1YI_MvPx3C7sMm_2g"