PortaOne is a software developer of billing (B/OSS & OCS) and switching (SBC & Class 4/5) products for communication service providers (CSP). PortaOne’s flagship platforms, PortaSwitch and PortaBilling enable CSPs to run hosted IP PBX and SIP trunking services, wholesale VoIP, IPTV and residential triple-play, MVNO / MVNE, SMS, data and voice over LTE, IoT / M2M, and more. PortaSwitch and PortaBilling are fundamental parts of the business infrastructure for 450 telcos in 90 countries worldwide. Over two-thirds of the 300 PortaOne staff are support engineers who provide the best-in-industry 24/7 technical support services.