What failures can occur during conference call setup?

Due to the complex nature of the handshake process, many things can go wrong. We have broadly categorized these pre-setup failures into three categories:

Media source related

• No working devices: media device cannot be accessed (e.g., it’s acquired by other application, device does not have it, etc.).
• No permissions: user refused to grant access to the device for an application.
• Incorrect Constraints: media device settings set by the application cannot be fulfilled (e.g., too high a frame rate).

To get a more detailed explanation, read our blog post about errors in accessing user media.

Negotiation related

• SDP generation error: SDP offer wasn’t generated due to some error.
• Negotiation failure: failed to find common configurations for crypto, network and media configuration failed.

During NAT/FW traversal

• ICE connection failure: checks failed because of a restrictive NAT or firewall.
• Aborted: checks have not failed or completed, however user closes the app/tab, ergo closing the conference call.

Read more on our blog!