Voice and video calls are now available for groups of up to 48 users for all the commercial plans subscribers. Free plan users can still use group video calls for groups of up to 12 employees.
You can make group video and voice calls in browsers (Google Chrome and Mozilla Firefox), in Bitrix24 Desktop and mobile apps.
Learn more about technical requirements in the article - Voice and video calls.
For Bitrix24 On-Premise users, there are some requirements that have to be met to enable calls for groups of 48 employees.