Telephony is the field of technology involving the development, application, and deployment of telecommunication services for the purpose of electronic transmission of voice, fax, or data, between distant parties. The history of telephony is intimately linked to the invention and development of the telephone.
Voice over Internet Protocol (VoIP), also called IP telephony, is a method and group of technologies for voice calls for the delivery of voice communication sessions over Internet Protocol (IP) networks, such as the Internet.
Singtel Optus Pty Limited is an Australian telecommunications company headquartered in Macquarie Park, a suburb in the Northern Sydney region of Sydney, New South Wales, Australia. It is a wholly owned subsidiary of Singaporean telecommunications company Singtel.
Vonage Holdings Corp. is an American cloud communications provider operating as a subsidiary of Ericsson. Headquartered in Holmdel Township, New Jersey, the organization was founded in 1998 as Min-X as a provider of residential telecommunications services based on voice over Internet Protocol (VoIP). In 2001, the organization changed its name to Vonage.
iiNet Limited is an Australian internet service provider and telecommunications company that sells NBN plans, 4G and 5G Home Wireless Internet and services on its ULTRA Broadband Cable, FTTB and VDSL2 networks. It also sells mobile phone sim-only plans using the Vodafone network.
Tessellis S.p.A. is an Italian telecommunications company founded in 1998 and based in Cagliari, Sardinia, that provides Internet and telecommunications services in Italy, and, previously had operations in other European nations through its acquisition of many smaller European Internet Service Providers (ISPs) in the late 1990s.
A naked DSL, also known as standalone or dry loop DSL, is a digital subscriber line (DSL) without a PSTN service — or the associated dial tone. In other words, only a standalone DSL Internet service is provided on the local loop.
An Internet telephony service provider (ITSP) offers digital telecommunications services based on Voice over Internet Protocol (VoIP) that are provisioned via the Internet.
TransACT is the trading name of TransACT Capital Communications, an Australian telecommunications company based in Canberra which provides broadband internet access, fixed telephony, cable television services, and mobile phone services in Canberra and a subset of these services in Queanbeyan, throughout South-east New South Wales and in Victoria.
TelstraClear Limited was New Zealand's second-largest telecommunications company before being acquired by Vodafone New Zealand in October 2012, previous to which it was a subsidiary of Australian company Telstra.
Innovate Corp. is an American public financial services company founded in 1994.
VocalTec Communications Inc. is an Israeli telecom equipment provider. The company was founded in 1985 by Alon Cohen and Lior Haramaty, who patented the first Voice over IP audio transceiver. VocalTec has supplied major customers such as Deutsche Telekom, Telecom Italia, and many others.
Exetel is an Australian ISP which provides ADSL, web hosting, VoIP, and other internet services to customers across Australia. Exetel's headquarters are in offices in Sydney, and its switching centres are distributed in capital city secure data centre facilities around mainland Australia.
Eftel Limited was an internet service provider and telecommunications provider in Australia, with approximately 120,000 active accounts. It was established in 1999. Eftel offers a range of services including: DSL and dial-up Internet access, web hosting and telephony services - to the retail, corporate and wholesale telecommunications markets.
Snom Technology GmbH is a German company which manufactures Voice over Internet Protocol (VoIP) telephones, based on the IETF standard Session Initiation Protocol (SIP). Snom's products are targeted at the small- to medium-sized business sector, home offices, Internet service providers, carriers, and original equipment manufacturers. The company, founded in 1996 and headquartered in Berlin, is a wholly owned subsidiary of VTech Holdings Limited, since 2016.
Deltathree Inc. is an American company engaged in the business of voice over IP telephony services. The company was one of the first in the world to offer a telephony service over the internet, reducing the cost of international calls by over 90 percent.
Primus Telecommunications Pty Ltd. is an Australian telecommunications company and wholly owned subsidiary of Vocus Communications that primarily focuses on fixed, mobile, and broadband services.
MagtiCom, Ltd. is a Georgian telecoms company founded on February 12, 1996 by Dr. George (Gia) Jokhtaberidze. On September 22, 1997, the Company made the first commercial call from its mobile network. The services offered by MagtiCom involve as follows: mobile telephony; mobile internet ; Cable fixed telephony (VoIP); internet television (IPTV) and fiber-optic internet. Since 2016 MagtiCom started to provide IPTV, VoIP and fiber-optic internet.
MyNetFone Australia Pty Ltd is part of the MNF Group, the company that owns and operates Australia's largest VoIP network, which is also the 3rd largest interconnected voice network in the country. MyNetFone provides broadband internet and cloud-based communication services to residential, business and government sectors.
VoiceHost is a UK (Norwich) based Internet Telephone Service (VoIP) which was founded in 2006.
