Once the phone call has started to record, the 3CX Recording Beep waits for the specified initial delay (in seconds) and then plays an audible beep to alert both the call participants about the ongoing call recording. This will be the last beep for the call if you have opted to play the beep only once. However, if you have opted to play the beep throughout the ongoing call, then the 3CX Recording Beep continues to play the beep according to the configured frequency (in seconds) until the call lasts.

• 3CX version 12 and above
• Client:  Internet Explorer, Google Chrome, Firefox, Opera browsers
• Server:  Windows 7 Pro (64bit) and above, Windows Server 2008 R2 (64bit) and above
• Internet Information Server (IIS) 7.0 and above
• Microsoft SQL Server 2008 (free Express edition) and above
• Microsoft .net 4.6.1 and above
• VoIPTools Relay installed on 3CX server

Note:  You can run IIS and NGIX or Abyss on the same server