System Requirements-UCP
Server
FreePBX 12 is required
Web browser clients
Google Chrome
voice mails play in-browser
Microsoft Internet Explorer
The right-arrow play button for voicemails does not play the voicemail. To hear the voicemail, click the download icon next to the play button and the voicemail will play in Windows Media Player or whatever application is configured to play .wav files.
Mozilla Firefox
voice mails play in-browser