The VoiceZone message playback and other audio features such as 'Listen to Call Blocking Message' require Apple Quiktime. However, QuickTime for Windows has been discontinued by Apple and has known critical security vulnerabilities. The Firefox browser - and possibly other browsers - block the QuickTime browser plugin . This makes it difficult to impossible to play VoiceZone audio with Firefox.
Spectrum should place very high priority on removing dependency on Quiktime and support reasonable playback apps.
In the meantime, it is possible to play voice message by clikcing 'View & Download', then playing the downloaded mp3 using a playback app such as Windows Media Player. This is cumbersome, but does work.
It is impossible to 'Listen to Call Blocking Message', however.
If you have access to Google Chrome, please try this browser. If you find that you are still experiencing this issue, please contact us directly via the following private LINK and we will be happy to assist.
Spectrum Community Forum Moderator