Independent study lab

This is an independent, free, learning-only student project. It respects every company and vendor. Trademarks belong to their owners. It is not affiliated with or endorsed by Amazon Web Services, Cisco, Genesys, Salesforce, Twilio, or any other company. If you have a concern, the page will be removed or corrected promptly through the contact form. Nothing here is sold. There are no ads. The author is happy to volunteer for any organization.

Contact: https://cyphermonkeylabs.com/#contact

Ports and media

Confirm before relying. Quotas, prices, and names change.

The network path is part of the product

Option 1 is a domain allow list: the instance on TCP 443, telemetry, transport, and TurnNlb on UDP 3478. Option 2 is the AWS IP ranges and is documented as not recommended. Test more than 200 calls. An error rate above 2 percent points at proxy or DNS resolution.

Media should not hairpin through a VPN. Stateless firewalls also need the browser's ephemeral UDP range, because there is no lasting 'pin' the way people imagine.

Source: Set up your network

Sources and go deeper

sources.json