Whois & Analysis for callcentric.com

Voice over Internet Protocol (Voice over IP, VoIP and IP telephony) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet.

The terms Internet telephony, broadband telephony, and broadband phone service specifically refer to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the public Internet, rather than via the public switched telephone network (PSTN).

Premium-rate telephone numbers are telephone numbers for telephone calls during which certain services are provided, and for which prices higher than normal are charged.

Unlike a normal call, part of the call charge is paid to the service provider, thus enabling businesses to be funded via the calls.

While the billing is different, calls are usually routed the same way they are for a toll-free telephone number, being anywhere despite the area code used.

These telephone numbers are usually allocated from a national telephone numbering plan in such a way that they are easily distinguished from other numbers.

Telephone companies typically offer blocking services to allow telephone customers to prevent access to these number ranges from their telephones.

In some jurisdictions, telephone companies are required by law to offer such blocking.

A telephone number is a sequence of digits assigned to a fixed-line telephone subscriber station connected to a telephone line or to a wireless electronic telephony device, such as a radio telephone or a mobile telephone, or to other devices for data transmission via the public switched telephone network (PSTN) or other private networks.

A user is a person who uses a computer or network service.

Users generally use a system or a software product without the technical expertise required to fully understand it.

Power users use advanced features of programs, though they are not necessarily capable of computer programming and system administration.

Free software, freedom-respecting software, or software libre is computer software distributed under terms that allow the software users to run the software for any purpose as well as to study, change, and distribute the software and any adapted versions.

Free software is a matter of liberty, not price: users, individually or collectively, are free to do what they want with it, including the freedom to redistribute the software free of charge, or to sell it, or charge for related services such as support or warranty for profit.