New HowTo: Setup new push.innovaphone.com certificate
From 01.09.2025, the previously used push certificate (*.innovaphone.com) will be replaced by a new certificate signed by the innovaphone Device Certification Authority 2. For the push service to continue to function, either the CA certificate or the individual certificate push.innovaphone.com must be available in the PBXs' trust list.
https://wiki.innovaphone.com/index.php?title=Howto:Setup_new_push.innovaphone.com_certificate