We ask that every potential member has a TeamSpeak interview with a couple of our officers, but after that, we don't require that you be in TS unless we're doing a a guild event, in which case, we just ask that you at least listen in to receive instruction. It just makes communication easier. There does tend to be someone in TS at all hours of the day, so you're rarely lonely.
In game, we are pretty casual. Getting groups together usually isn't a problem if you want to run dungeons, but we we typically leave that up to individuals.
There are no times requirements. For Rangers, real life always comes first