The Lifesize app for Slack can be installed individually from the Slack App Directory by any Slack user with a Lifesize account or deployed to the whole organization by the Lifesize account admin with a few simple steps found here.
Start a meeting
You must be logged in to your Lifesize account before you can initiate a call, and you must authorize access to your Lifesize account from Slack the first time you use the Lifesize app for Slack.
From a direct message or a channel, click Call. A one-time meeting will be created, and Slack will post a message or calling card to the channel. Meeting participants who have joined will be displayed, and invitees can click to join.
You can also type /lifesize to start a meeting. A one-time meeting will be created, and Slack will post a message or calling card to the channel.
NOTE: Calls across Lifesize accounts are not supported.
Join an existing meeting
You can join Lifesize meetings in your account using either the Lifesize meeting extension or name. Type /lifesize join and enter the extension or name (example: /lifesize join 1234567).
NOTE: If your meeting is passcode-protected, you can find the passcode in the calling card. If a meeting is hidden from you, you will see an error message that the meeting cannot be found.
Once your meeting has ended, Slack will display a list of attendees and the time the call ended in the calling card and the date in the channel.
Other Slack commands
/lifesize logout – sign out of your Lifesize account
/lifesize help – display a list of supported commands