Minimum Network Requirements for VoIP

Minimum Network Requirements for VoIP

  • Voice traffic should be marked to DSCP EF per the QoS Baseline and RFC 3246.
  • Loss should be no more than 1 percent.
  • One-way latency (mouth to ear) should be no more than 150 ms.
  • Average one-way jitter should be targeted at less than 30 ms.
  • A range of 21 to 320 kbps of guaranteed priority bandwidth is required per call (depending on the sampling rate, the VoIP codec, and Layer 2 media overhead).