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en.wikipedia.org/wiki/Internet_telephony_service_provider

An Internet telephony service provider (ITSP) offers digital telecommunications services based on Voice over Internet Protocol (VoIP) that are provisioned via the  ...

www.tmcnet.com/voip

Covering the latest news and featuring original articles on Voice over IP products and services. Features in-house product testing and reviews.

www.webopedia.com/TERM/I/Internet_telephony.html

For users who have free, or fixed-price Internet access, Internet telephony software essentially provides free telephone calls anywhere in the world. To date  ...

www.techopedia.com/definition/7783/internet-telephony

Internet Telephony Definition - Internet telephony is a type of communications technology that allows voice calls and other telephony services like...

www.nfon.com/en_de/cloud-telephone-system/resources/glossary/internet-telephony

The terms IP telephony (IP = Internet Protocol) and Voice over IP (in short: VoIP) refer to making telephone calls via a computer network, whereby the data is ...

searchunifiedcommunications.techtarget.com/definition/Telephony

Internet telephony is the use of the Internet rather than the traditional telephone company infrastructure and rate structure to exchange spoken or other telephone  ...

www.unc.edu/courses/2010fall/law/357c/001/VoIP/basics.html

There are numerous synonyms for internet telephony, but there are also some subtle differences in terms. Internet telephony is also known as VoIP (Voice over  ...

www.businessdictionary.com/definition/internet-telephony.html

Definition of internet telephony: Technology that converts analog speech signals into digital signals and routes them through packet-switched networks of the ...

www.cse.wustl.edu/~jain/cis788-97/ftp/internet_telephony

Internet Telephony is a powerful and economical communication options by combination of the telephone networks and data networks.