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Upload a Custom Prompt

Custom prompts let you use your own recorded audio, greetings, announcements, or hold messages throughout the phone system. This page walks you through uploading an audio file so it becomes available as a custom prompt.

Have an audio file ready that satisfies both of the following:

  • Format: .wav, .mp3, or .gsm, encoded as one of:
    • PCM, 8 kHz, 16-bit, 128 kbps
    • A-law (G.711), 8 kHz, 8-bit, 64 kbps
    • u-law (G.711), 8 kHz, 8-bit, 64 kbps
  • Size: 8 MB or less.

These are standard telephone-grade audio settings. PCM (Pulse Code Modulation) and G.711 are the codecs used for voice calls, 8 kHz is the sampling rate, and kbps (kilobits per second) is the bit rate. When you export audio from a recording tool, match one of the rows above so the file plays back correctly.

The number of custom prompts your system allows depends on how many extensions it supports:

Maximum extensions (N)Maximum custom prompts
N ≤ 5064
50 < N ≤ 200128
N > 200128
  1. Sign in to the web portal and go to PBX Settings > Voice Prompt > Custom Prompt.
  2. Click Upload.
  3. In the file browser, choose the audio file from your computer and click Open.

Once the upload finishes, the file appears in the list on the Custom Prompt page and is ready to use.