Vopcon™ Voip service allows residential and business customers to use their cable modem, DSL modem, or other Highspeed Internet connection to make and receive VoIP phone calls using an ordinary touchtone telephone. Used your own device plans allow customers to connect their own SIP devices, including IP phones, softphones, and Asterisk PBXs. technologies by Vopcon optimize the routing of network voice traffic, providing the best possible quality voice transmission for each customer's phone device, and automatically configures your devices