Matrix PRASAR UCS - Apple Push Notification Service Support

Matrix PRASAR UCS System Manual 565
Apple Push Notification Service Support
What's this?
Apple Push Notification Service (commonly referred to as Apple Notification Service or APNs) is a platform
notification service created by Apple Inc. that enables third party application developers to send notification data to
their applications installed on Apple devices.
Previously, VoIP applications needed to maintain a persistent connection in order to receive calls. Keeping a
connection open in the background, drains the battery as well as causes all kinds of problems when the application
crashes or is terminated by users.
In iOS 8 Apple has introduced PushKit as part of their effort to improve battery life, performance and stability for
VoIP applications such as Skype, WhatsApp, etc. PushKit offers high-priority push notification with a large payload.
The VoIP application receives the notification in the background, sets up the connection and displays a local
notification to the user.
PRASAR UCS supports PushKit for VARTA AMP100 Application only. Push Notifications will be sent for calls, new
messages as well as for voicemail. Push Notifications will be sent to the MATRIX VARTA AMP100 Application only
if it is in the background and when there is persistent internet connection. You will receive the Push Notifications
even after you exit the application provided the check box Calls and Messages after exit is enabled in the VARTA
AMP100 Application. For details refer to the VARTA AMP100 User Guide.
How it works
Pre-requisites for Push Notifications:
• Make sure that the server has a persistent internet connection.
• Make sure the Date and Time of the server is synchronized with the NTP Server.
• To receive IM and IM notifications make sure the application is registered at Location 1. For more details,
refer “Configuring Matrix VARTA ADR100/AMP100 UC Clients”
Let us see how the notifications will be sent by the server when MATRIX VARTA AMP100 application is registered
with the server as a SIP Extension and it is in the background. There is an incoming call or message:
• You can check the status of the SIP Extension user. It will display Registered (as the device is in the
background) and under the respective Contact 1, 2, 3, it will display the time remaining for the expiry of the
VARTA Client Inactivity Timer. The default value of the VARTA Client Inactivity Timer is 10 days. To
configure this timer, refer to “System Timers and Counts”.
• The server will send a Push Notification to the MATRIX VARTA AMP100 application (client).
• The server will wait for 15 seconds after sending the Push Notification:
• if the client registers with the server within this time, the call will be connected or the message will be
delivered. The status of the SIP Extension will display Registered and under the respective Contact 1,
2, 3 it will display the SIP ID, IP Address and the Registration Expiry Timer.
• if the client does not register with the server within this time, the call will be disconnected or the
message will be rejected.The status of the SIP Extension will display Registered and under the