Comment Shoretel (Score 2, Informative) 232
http://www.shoretel.com/ - makes the best VOIP phone system around. It will do everything you want it to do, easy to set up, and comes with an SDK. Knock yourself out.
"The eleventh commandment was `Thou Shalt Compute' or `Thou Shalt Not Compute' -- I forget which." -- Epigrams in Programming, ACM SIGPLAN Sept. 1982
