Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
If you are still using CentOS 7.9, it's time to convert to Alma 8 with the free centos2alma tool by Plesk or Plesk Migrator. Please let us know your experiences or concerns in this thread: CentOS2Alma discussion
Please have a look Release Notes for Parallels Plesk Panel 11.0. May solve your problems.
http://download1.parallels.com/Plesk/PP11/11.0/release-notes/parallels-plesk-panel-11.0-for-linux-based-os.html
Thanks
Have you configure sub domain for voice.mydomain.co.uk ?
If you don't have DNS server then ask to your provider for DNS entry. Then ping voice.mydomain.co.uk if success then it will be work. have fun..........
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SakibS