Supported Audio Codecs

Supported Audio Codecs

At Imperial Telecom, the following audio codecs are supported.
Take note of the required bandwidth, and ensure your router QoS (Quality of Service) is set correctly).
 
  • G.711 (recommended)
    • 64 Kbps - ulaw (as used in Canada, Japan and US)
    • 64 Kpbs - alaw (as used in Europe and the rest of the world)

      Bandwidth (incl. overhead): 160 Kbps (0.16 Mbps)
  • G.726
    • 32 Kbps

      Bandwidth (incl. overhead): 48 Kbps (0.05 Mbps)
       
  • G.729
    • 8 Kbps

      Bandwidth (incl. overhead): 48 Kbps (0.05 Mbps)
       
  • GSM
    • 13.3 Kbps

      Bandwidth (incl. overhead): 58 Kbps (0.06 Mbps)

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