Voice Over Internet Protocol has become a media and technology favorite, portrayed as the service that sends local and long distance carriers into extinction.
Come the end of the month you might see some nice incentives for carriers who want current customers to extend their contracts.
The largest carriers have raised rates each and every month this year. Instead of increasing across the board they have been increasing rates for one plan one month and another the next month.
The quality of the phone call with small carriers is the same, you just haven't heard about these companies because they don't spend a lot of money marketing themselves.