PacketOne is a Linux-based softswitch platform that provides scalable VoIP services and features for telecom startups and carriers. It offers easy account recharging through pins and vouchers, advanced billing facilities, and the ability to handle 750 concurrent calls. Surveys found that 95% of customers report it is user-friendly and scalable, while 90% are happy with its features. Pricing starts at $250 for rental or $5000 for purchase, and support is included for one year.