Is SIP Living up to its Potential?

We all know about SIP, and it's hard to deny its impact on IP communications, especially VoIP. Well, fellow blogger Brough Turner had a very thought-provoking post the other day that takes the contrarian view about SIP. Brough's post actually ran last Friday, but it's taken me til now to get around to sharing this with you here. As you probably know, I'm not a news-hound, and there's nothing time-senstive about this post, so you're not missing anything if you're just reading about it now. I c