Audio Files Requirements

This topic describes the requirements for audio files to be uploaded to Yeastar P-Series PBX System.

Applications of audio files

You may need to upload a custom audio file in the following scenarios:

  • Voicemail greetings
  • Custom prompt
  • Music on hold

Audio file requirements

Audio files to be uploaded to the PBX must meet the following requirements:

Option Requirement
File Name Should NOT contain special characters.
File Size

Up to 8 MB.

File Format .wav, .mp3, or .gsm.
  • PCM, 8K, 16bit, 128kbps
  • A-law (g.711), 8k, 8bit, 64kbps
  • u-law (g.711), 8k, 8bit, 64kbps