It's possible to estimate each Jira issue in the "async" mode, which might be useful for the distributed teams that can't have an "on-line" session. Currently, there is no unified "session" concept, as in the "classical" version. Instead, all participants are invited to estimate directly in the issues (async mode tab, see screenshot). Simply share the JQL filter with the participants so they could go over the issues and estimate them one by one.

Below is a brief overview of the available functionality.

Initial voting phase

1. "Reset all estimates" button removes all previous estimates and restarts the estimation.

2. Deck of cards, obviously.

Summary phase

1. "Reset all estimates" button removes all previous estimates and restarts the estimation.

2. "Cancel My Estimate" button removes your card.

3. Summary of all estimates from all users, grouped by "Story Points" values.