Features: A product for cyber cafes Functions on sip protocol Nonstop service while printing on both lines With built-in printer, battery charger, call meter management system is optional. linkwell introduced pay phone solutions on IP keeping in view of the revolution in the field of telecom and ongoing migration from conventional telephone networks to IP based networks. Visiontek 31t (ip) is exclusively designed for dual line which allows to place voice calls over internet networks. It works on the VOIP platform all over the globe. Its based on advanced microcontroller based technology which supports ietf sip v.20. It has advanced features that enable g.168 echo cancellation with voice compression protocols. It houses an alphanumeric heavy-duty printer with 10/100 mbps LAN connection. Widely called as call shops, i-ways, attended payphone booths, communication bureaus, phone shops, kiosk, telecentres, svyaz, teleboutiques and community phones