Apple Push Notification Service

Apple Push Notification Service is available for applications on the following devices:

iPhone
iPad
iPod touch


Push Notification Service requires iOS 3.0 or later.
it requires  a  internet connection.

at least one application which supports the push notification service.


To Verify the Device supports push notifications

check

  Settings > Notifications.  menu


If this menu is not present the device is not support the apple push notification support. For get the Push notification service we need to update the ios version to 3.0 or later.

To receive  the  push notification from the server you need to open the application at least once.
If you want to disable the Push notification service you can disable the service. just go to    
Settings > Notifications. . 

The Apple push notification service also supports the following Features
 
 Sounds :- Alert sound or a music 
Alerts :- can display alert on the screen
Badges:- Display an image/number on the application screen.


Next:- Configure the Push notification Service.