1. ACLI Configuration Guide
  2. Local Media Playback
  3. Local Media Playback Operation
  4. Media Files

Media Files

Media files of ringback tones are uploaded to /code/media to the ESBC. This file differs based on your media generation method and must be raw media binary. For Transcoding based RBT, ensure that the files RAW PCM 16-bit MONO samples, sampled at 8-khz encapsulated with little-endian formatting and cannot exceed 4.8 MB.

When using the SPL method:

  • A separate file is required for each different codec type, even if the media itself is the same.
  • Your configuration must specify a playback rate in bytes per second, as this setting defines how many bytes of data per unit of ptime are needed.
  • To preserve system memory resources, media files are limited to 2MB.

No media file can not exceed 5 minutes of playback data.