Thank you for replyingThe PUSH registration has default expiration period of 7 days. Since Update 10 this will be expanded to 14 days as per annpouncement below:
• https://www.3cx.com/blog/releases/push-subscriptions-extended/
Founded in 2005, when VoIP was an emerging technology, 3CX has gone on to establish itself as a global leader in business communications.