He means having a video call linked to a recurring meeting.

> What does this mean?

Apparently it's corpo/PM speak [0] for meeting #'s, which judging by his stance on the poorly reviewed Teams app so far makes me think that MS product market fit strategy worked in this case: it knows who it built Teams for.

Just look at who this is aimed at:

> Where the Action Is is a book for leaders seeking to make sense of their meetings and master their business.

0: https://www.lucidmeetings.com/meeting-types/team-cadence-mee...