Linksys SPA8000 is the multifunctional PBX for enterprises and small to medium businesses, which makes it easy to use VoIP telephony using broadband Internet access. Linksys SPA8000 is the best solution for businesses, service providers and VoIP telephony operators. PBX has 8 configurable lines, supports up to 16 active calls and the possibility of a 3-way conference.
Lingo is one of the most affordable U.S. Internet phone services. Lingo offers unlimited local and long distance calls anywhere in the U.S., to Canada, and to Western Europe, plus over 25 calling features