Push notification routing

Last Updated : Jan 12, 2024 |

The following diagram summarizes the connections involved in Apple push notifications.





  • The IP Office sends push notifications to the Avaya Push Notification Provider (PNP) at pnp.avaya.com. It does that using HTTPS and port 443. For scenarios with an ASBCE, the push notifications are not routed through the ASBCE.

  • Avaya PNP forwards the push notifications to the Apple Push Notification Service (APNS) at *.push.apple.com.

  • APNS forward the push notifications to the iOS devices.

  • Call details in the push notifications are encrypted end-to-end.

iOS device ports

To support push notifications, the iOS devices must have outgoing access to the following ports and internet addresses.

Ports

Addresses

  • TCP port 5223

  • TCP port 443

  • TCP port 2179

  • URLs: *.push.apple.com

  • Address range: 17.0.0.0/18.

    If you cannot enable access to the full address range, ensure the following are accessible:

    • 17.249.0.0/16

    • 17.252.0.0/16

    • 17.57.144.0/22

    • 17.188.128.0/18

    • 17.188.20.0/23
Related information
Enabling Apple Push Notifications