Re: Since upgrading my iMac 27" from Sonama to Sequoia, I can no longer make FaceTime calls
I just receive 'Call Failed' when I attempt to make or receive calls.
I get maybe one call after a restart before the problem occurs.
Am no expert in this area, yet your post to the community deserves some response.
You might want to check requirements : eg: what those you call need for FaceTime
FaceTime requirements on Mac - Apple Support
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Sometimes third-party apps you've installed, and that you find necessary may need updating .
ie: so they remain compatible with MacOS, and don't cause interference:
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Unnecessary third-party apps, eg: virus-checkers, ad-blockers, cleaners and the like (even VPN) may cause interference. Try turning them off, (or use uninstallers from their developers) and see if that helps.
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Trouble-shooting articles from Apple Support:
If FaceTime isn't working on your Mac - Apple Support
Eg;says:
"If you need help with your connection or call quality
A slow or busy Wi-Fi network might cause issues with your FaceTime call.
If you experience connection alerts, or low-quality audio or video, or an exclamation point
over a video tile:
- Make sure that you and your recipient have a fast Wi-Fi or cellular connection. FaceTime calls over Wi-Fi require a broadband connection.
- Check for issues that might be slowing down your connection, such as someone streaming content over your network.
- If you have questions about your internet speed, contact your internet service provider."
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Also see: If you use FaceTime and iMessage behind a firewall - Apple Support
Eg: says:
"You can use FaceTime and iMessage with most networks.
If you're on a network that's behind a firewall, you might need to enable certain ports."
If relevant:
Earlier discussion thread found MOTU interface caused "Call Failed" issues, until a driver update was available:
Facetime on Mac saying "Call Failed" - Apple Community
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If needed: Resource: FaceTime User Guide for Mac - Apple Support (see "Table of Contents" link at the top)
