I have used * for a number of years. I have seen its issues with vm problems, tx/rx issues and other oddities. In the begginging I was excited to have the idea of selling this or anything voip but again the system needs to be nearly 100% reliable to keep my reputation. I have yet to upgrade to a newer version or the telephony cards. Now I dont think traditionally telephony systems will just disapear. We still have alot in customers installing just the telephone lines only and rarely see voip except perhaps avaya. I think both can coixist and both have there purpous.

I have my own * box and have done my share of voip telecommuting to my box and called out my telus line. It was cool that I did not have to deal with long distance roaming charges but still voip with wifi is extreemly restricted and impossible to use when constantly traveling. Both have there place and I dont think traditional pbxs will disapear.