What network measurements matter most for cloud calling?
Latency, jitter and packet loss determine call quality more directly than a large download-speed number.
- Stable latency in both directions
- Low variation between packets
- Minimal packet loss
- Adequate upload capacity
- Quality-of-service configuration where appropriate
How much bandwidth does a phone call require?
Individual calls use modest bandwidth, but the design must account for concurrent calls, signaling, encryption, other applications and safe operating headroom.
Should a phone deployment include backup internet?
If receiving calls is business-critical, the design should include an alternate connection and a tested failover plan for both the network and the phone platform.