Sadly, not easily. The voip.ms API can show me that the phone is logged in, and I can poll the phone bill ("call detail records") but that only shows calls after they've completed. But there isn't anything available for current call state that I can find.
> Name your library after what it does. Use compound terms. Embrace verbosity if necessary. http-request-validator is infinitely superior to “zephyr” when someone is scanning dependencies at 2 AM debugging a production incident.
I doubt it's beeper. After all they contribute a LOT, they employ tulir who maintains most of the bridges which are all offered as FOSS. Even though they compete with Element One a bit (not really because they're twice the price and offer way more bridges) they can't be considered freeloaders. Perhaps they don't contribute much to the core service but the bridges are really important to the ecosystem.
The governments? Perhaps. But they're high-profile clients that give matrix a lot of validity. Also I doubt they write much code they don't open source.