Voice Over Internet Protocol (VoIP)


Glossary

ITSP – internet telephony service provider. A company that offers cheap phone calls that run over the internet.

PBX – Private Branch Exchange. A phone system that connects a company to the public telephone network.

SIP – Session Initiation Protocol. SIP is an emerging IP telephony standard that is being enthusiastically endorsed by the VoIP industry.

USB – Universal Serial Bus. An interface standard for connecting devices such as digital cameras to computers.

VoIP – Voice over Internet Protocol, enables businesses to make phone calls across computer networks. Also known as Internet Protocol telephony and IP telephony.

See also our IT Jargon dictionary

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