Yes. Blitzz works over a VPN as long as your connection meets the minimum bandwidth and latency requirements. For the best results, we recommend using Blitzz without an active VPN.
Why a VPN can affect call quality
Real-time video is sensitive to network quality. VPNs add overhead, latency and bandwidth limits. If you see poor video, dropped calls or audio issues, your VPN may be the cause.
Recommendations for corporate VPNs
- Ask your IT team to allowlist Blitzz domains and ports so Blitzz traffic bypasses the VPN tunnel (split tunneling). Share the network requirements and firewall configuration guide with them.
- Run the diagnostic tests to check whether your connection meets the requirements.
- If issues continue after allowlisting, turn off the VPN temporarily to see if it is the cause.
Frequently asked questions
What is split tunneling?
A VPN setting that lets selected traffic, like Blitzz video calls, go directly to the internet instead of through the VPN tunnel.