We are having the sames issues as fixter. We have a T1 for our PRI and a separate T1 for data and external IP phones through a switch. We tried a priority router and gave 100% priority to the IP phones. That made no difference. Tomorrow, we are trying a separate cable modem for the ip phones. I hope that works. Otherwise, I guess we blame the internet. But, that would make our ip phones obsolete. Can that be? What a waste of money.
