Short answer
It helps. Direct peering and uncongested paths give more consistent latency, so cloud and voice workloads behave closer to a local network than they would over the public internet. Call quality still depends on your site's last-mile link.
In detail
Real-time communications such as voice and video conferencing are particularly sensitive to latency, jitter and packet loss. FirstNet addresses the parts of the path it controls:
- Direct private peering with Microsoft Azure and Microsoft 365, AWS, Google Cloud and major CDNs
- Engineered headroom for stable performance at peak
- Quality of Service and traffic shaping, so business-critical applications get priority during congestion
- 24x7 monitoring of latency, packet loss and jitter, not just line availability
The last mile is the other half. A congested or failing access link will still affect calls, so critical sites benefit from a diverse backup, and SD-WAN can steer real-time traffic onto the best-performing link. Where a link failure would otherwise drop live calls, Peplink bonding keeps active sessions, including SIP and RTP voice traffic, running through a link cut.
FirstNet can baseline current latency at your sites as part of a connectivity assessment.
Source: FirstNet Direct Peering with Microsoft & AWS service page →
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