VoIP Bandwidth Calculator Print

Use this VoIP bandwidth calculator to determine how much bandwidth you'll need to run multiple simultaneous calls over your broadband internet connection.

Working out whether your current Internet connection has sufficient capacity to accommodate a hosted VoIP service is extremely important.

Notes

1. Selecting Codec Type will automatically select a recommended sample size.
2. Enter your bandwidth manually if the codec is not listed.
3. Reduces bandwidth to half of that without silence suppression. Savings will vary depending on the implementation and type of use.
4. The IP/UDP/RTP headers added to the payload assumes a fixed 40 octet overhead.
5. Adds a further 38 octets ... Ethernet preamble (8) + header (14) + CRC (4) + Inter-frame gap (12) = 38 octets.
6. Assumes 100% link utilization on a full duplex, point-to-point link.