Convert to 3CX wav format

3CX allows you to import audio files in this format to use as the system prompts:

• Format: WAV
• Channel: Mono
• Bit rate: 8 kHz
• Sampling: 16 bit

You need to convert to this format any prompts for IVR, Queues and custom system prompt sets.

https://audio.online-convert.com/convert-to-wav

https://www.3cx.com/docs/converting-wav-file/