What are the Vonage Video API network connectivity requirements?
What are the minimum network requirements to use the Vonage Video API?
- Vonage Video API
- Network Requirements
- Firewall Requirements
- Proxy Requirements
Vonage Video API services require access to specific ports. At a minimum, the following requirements must be met:
- Open TCP port 443
- Whitelist the following domains:
If you allow traffic only from the whitelisted domains *.opentok.com *.tokbox.com limiting the access to other IP addresses, then you may experience a connection time-out when attempting to publish or subscribe. In that case, please contact firstname.lastname@example.org.
Along with the minimum requirements, opening UDP Port 3478 will provide a better experience. UDP is recommended over TCP for better quality audio and video. UDP favors timeliness over reliability, which is consistent with human perceptive preferences, where we can fill in gaps but are sensitive to time-based delays.
This port only accepts inbound traffic after an outbound request is sent. The connection is bidirectional but is always initiated from the corporate network/client, so it is not possible for an external entity to send malicious traffic in the opposite direction. For the best possible experience, we recommend opening UDP ports 1025 - 65535.
Whitelist the following HTTPS verification servers for our HTTPS certificate. Not doing so may cause console warnings, but should not affect the session.
As a general rule, using the latest versions of the Vonage Video API and browsers will produce the best results. Most proxies are supported in browsers and mobile apps today. If the only way to access the Internet from your network is through a proxy, then it must be a transparent proxy or it must be configured in the browser for HTTPS connections. WebRTC does not work with proxies requiring authentication. Along with these requirements, clients may have the following rules:
- Although not every option has been tested, recent versions have full support for authentication.
- Pre-58 versions support NTLM authentication.
- We've found a forwarding proxy setup with Kerberos does not work.
- We do not support proxy configurations that use .pac files with any Native SDKs.
For a visual guide on Vonage Video API network requirements in restricted networks, see our Developer documentation for Restricted Network Guidelines.
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