1. Support group calls, one-to-one or one-to-many temporary calls;
2. Support to view historical intercom recordings, which are well documented;
3. Support to send and receive text, pictures, videos, location information in groups and the way of communication is diversified;
4. Support to receive broadcast notifications from the dispatch console and support real-time broadcast；
5. Support location report, which has traces to follow.
1.Add patrol and mandown functions.
9Apps 4.9
