I have successfully installed digium skype for asterisk. I can recieve and call out using one skype account. The only problem I got is when I call out using this trunk, after 30 - 40 minutes the call drops off but not frequent. Maybe 2 out of 5 calls this thing happen. I am using Yealink phones, pc are hook to the phone and 2 layer switch and does not support POE. Cat5 cables. Need some expert advice.