VoIP Bandwidth Calculator

For more background on the calculations used in this bandwidth calculator, see the White Paper: 'VoIP Bandwidth Calculation'.

Notes:-

1 - Selecting Codec type will automatically select a recommended sample size
2 - Enter a bandwidth manually if the codec is not listed
3 - Reduces the bandwidth to 50% of what it would be without silence suppression. Note:- savings will vary depending on implementation and type of use.
4 - IP/UDP/RTP headers added to payload assumes a fixed 40 octet overhead
5 - Adds a further 38 octets for the Ethernet preamble (8), header (14), CRC (4) and Inter-frame gap (12)
6 - Assumes 100% link utilization on FDX point-to-point link