Scenario: If two people are connected in a video call, both publishing and subscribing to video from each other for one minute, would that be charged as two minutes?

Correct – TokBox charges for subscribed minutes (not published) so 2 subscribers equals 2 charged minutes for each elapsed minute of the session.

The simple formula to apply when all users are publishing and subscribing is:

for n participants, there are n x (n-1) subscribed minutes per minute of conversation - Ie a group of 5 people has 20 subscribed minutes per elapsed minute of conversation (session minute).