I have finally implemented a monitoring script on my Voipo trunk, and it showed the trunk to be down between 1-3AM today (I assume the maint window), and again from about 10am - 10:35am this morning. I register to east01, and my script monitor runs every 5 minutes (on the 5's and 0's). If it goes up and down between those times, my script won't detect it (because I don't need it running all the time and don't need 60 emails/hr if I do something silly that causes a failure). I haven't gotten a 'down' notice since 10:35 this morning.