After tracking down an issue with our VoIP provider here at work, I rediscovered the wondershaper script: a tool which adds quality of service rules to Linux-based firewalls. It immediately cleared up my dropped voice packet issue at work and has worked well at home, too.
Since the script was written in 2002 and I first discovered it not long afterward, I had been under the impression that I was using it at home. It turns out I wasn’t, so its good to have put it in place again.
One of these days I’m going to come up to speed on all the quality of service minutia.