What tools are anyone using for team communication?

The internal communication in Jobber is not robust enough for multiple team members, especially when we may be working on the same customer/job at different times. Features needed:
- ability to mention/tag other team members so they are notified of the comment or message
- keeps the communications "within Jobber" at least in knowing which customer the communication pertains to

Is there a 3rd party tool/plug in that anyone has found useful for this need?

Or even better, Jobber team, is there any plan to deploy this as part of a standard feature?