We try to keep our meetings quick and productive, so we have a couple weekly meetings structured such that folks submit their key talking points in Slack and then we run through them in order.
In order to alleviate the awkward "not sure if you're finished talking" silence of group calls, we have instituted a policy of saying "thank u, next" to pass the mic, so to speak. It also seems to cut off necessary rambling because folks know how to cut themselves off. And it all has a positive intonation by default.
The results have been great (at least I think so). It is a small thing, but it matters for a distributed organization.
Do you have any similar practices at your org?