Push Service

The benefits of push technology are huge. Just imagine displaying notifications in your app the minute an interesting event happens in the real world.

• Allows up to 8 KB payload
• Uses standard push protocols (WAP PAP 2.0 and 2.1)
• Supports the following requests via HTTP XML:
• Submit Push (to PIN)
• Cancel Push
• Query for Status
• Supports the Subscription Check API (for the BlackBerry Internet Service only)
• Provides result notification responses
• Provides different submission modes:
• Point-to-point (submit push to single PIN)
• Multicast (submit push to list of PINs)
• Broadcast (submit to all PINs for a registered application)
• Allows developers to control the expiry time (push system will automatically retry pushing requests until expiry time)
• Allows applications to be closed, receive a push, process the push data in the background and then close again, so users can be notified without a disruption to their current state (this feature is enabled by the multitasking and multiple process BlackBerry OS)
• Allows developers to set the quality of service:
• Application (“message reached application” acknowledgement returned to server)
• Transport (“message reached device” acknowledgement)