Updated security certificate for Push Notifications (iOS) - http://www-01.ibm.com/support/docview.wss?rs=899&uid=swg21641787
Before 5 May 2016, Sametime administrators must download and apply the latest security certificate for iOS traffic. If Push Notifications have stopped working for the native iOS client, this could be due to the SSL certificate for connecting to the APNS server having expired.
Monday, April 18, 2016
Your ACTION Required for Sametime 9 iOS Customers before May 5, 2016 - Updated security certificate for Push Notifications (iOS)
Folks, for those of you with customers running Sametime 9 and integrating with iOS (Apple Push Notification Service), your customers must take action described on the following technote to update their Apple Certificates before May 5, 2016: