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SetupMay 13, 20265 min read
How Much Internet Speed Do You Need for VoIP?
Quick Answer
Plan ~100 Kbps per concurrent call. A 5-person office needs ~500 Kbps reserved for voice (use 5 Mbps total to leave headroom). Latency under 150 ms one-way, jitter under 30 ms, packet loss under 1%. Anything over 25 Mbps symmetrical comfortably covers most small/mid offices.
By number of concurrent calls
- 1 call: 100 Kbps (any broadband works)
- 5 calls: 500 Kbps reserved + general usage
- 10 calls: ~1 Mbps reserved
- 25 calls: ~2.5 Mbps reserved
- 50+ calls: ~5 Mbps reserved + business-grade router with QoS
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