Snom One plus
Snom ONE plus is a telephone system (PBX), based on SIP protocol, designed as a universal hardware solution, which includes various options for connecting to PSTN: using analog, PRI (E1, T1, J1), BRI ports. When used with the Snom IP-phone it is a reliable and easy to install solution.
Nuvio is the smart choice for internet service providers who wish to offer VoIP services. Nuvio has spent the time and resources building out a nationwide VoIP network so you don`t have to.