The people you call do not need to have a computer to communicate with you. US subscribers to Internet-based telephone services grew 21% to 6.9 million in the second quarter of 2006. You can have as many lines you want and each additional line is billed at the same rate as a single line. Some estimates have suggested that worldwide revenue of this new technology will hit the $96 billion mark by 2011.

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Get a phone number in any area code

This exciting Oklahoma VOIP technology allows you to take your phone number with you anywhere you travel. Virtual numbers are normally an additional cost but can start out at only $4.99 per month and they can only be used for incoming calls. Vonage remained the industry leader with 1.8 million subscriber lines as of 2006. Business plans will include a fax line with a fax telephone number.. You may be able to use your service wherever you travel as long as you have a broadband Internet connection available.

No annual contracts or cancellation fees

Comcast, which launched its service more slowly than most of its cable rivals, posted a 73% jump in users. When you pick up the phone with Oklahoma VOIP and dial a phone number the phone adapter (black box) converts your voice into data and sends the data through the Internet in a similar manner to an email message. This technology converts the voice signal from your telephone into a digital signal that travels over the Internet. Most providers require you to have a custom telephone adapter that is pre-configured for their network so providing your own may not be an option.