other three letter acronyms ending with O followed by S:
ignoring cos and tos
other almost urls:
choppy voice, avoiding
and a trip through vegas land
*huh*, you ask, what is qos, but with diagrams? ok
this is *NOT* an endorsement of vonage. Never ever use vonage, and certainly never google voice. The later abuses precious privacy in trade for very little. If your isp is voip hostile *cough* *verizon* then I suggest Ooma if you have not / cannot afford to replace all verizon cpe. If not voip hostile then viatalk (<$20/mo) or voipms ($0/mo, PAYG). In Pay As You Go consider also setting up an Asterisk server at home. While I warn you away from masochism: avoid skype; SIP and jingle are your friends, cost is only incurred out to PSTN. Ditch skype app for jitsi almost as fast as ditching sms for xmpp. Yeah, voip on the mind in another forum response. Charitable bandwidth managing to extract maximum value? Steering to help you avoid burning other money.
strip out evil with FoolDNS to increase interweb speed. less junk = more fast. reformat interweb pages in gateway like untangle to MANDATE adblocking to protect privacy and decrease load time. Block all (SSL) NNTP and P2P from everyone who isn't you (or constrain to media center, xbmc). Limit maximum open connections per user. Never leave wifi AP enabled while everyone is asleep. Consider also blocking all bandwidth hogging porn (parents).
If you want to inflict justice on the world
use captive portal to motivate other users to pay their portion of bill(s)
if foolishly relying on wifi for connectivity setup freeRadius and then
Hope that helps :)
In Christ Jesus