The ISP-VoiceOverIP list is a space where ISPs can talk about both technical and business issues that concern what may be the most lucrative service an ISP can provision, but which could also be the most complex. If your ISP delivers or resells telephony services or supporting services such as billing and technical support, or if you provide such services for resale by ISPs or CLECs, sign up and join the conversation. Also, do check out the archives.