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  2. Telecommunications in Singapore - Wikipedia

    en.wikipedia.org/.../Telecommunications_in_Singapore

    [4] [5] [6] Failure of the joint venture was attributed to a saturated mobile market and Virgin Mobile's positioning as a "premium" brand. [7] As for internet facilities, as of 2009, there are four major internet service providers (ISPs) in Singapore. By February 2009, there were more than 4.8 million broadband users in Singapore. However, due ...

  3. VoIP phone - Wikipedia

    en.wikipedia.org/wiki/VoIP_phone

    A VoIP phone or IP phone uses voice over IP technologies for placing and transmitting telephone calls over an IP network, such as the Internet. [1] This is in contrast to a standard phone which uses the traditional public switched telephone network (PSTN). Digital IP-based telephone service uses control protocols such as the Session Initiation ...

  4. Business telephone system - Wikipedia

    en.wikipedia.org/wiki/Business_telephone_system

    A business telephone system is a telephone system typically used in business environments, encompassing the range of technology from the key telephone system (KTS) to the private branch exchange (PBX). A business telephone system differs from an installation of several telephones with multiple central office (CO) lines in that the CO lines used ...

  5. Simba Telecom - Wikipedia

    en.wikipedia.org/wiki/SIMBA_Telecom

    SIMBA Telecom Pte Ltd, formerly known as TPG Singapore, is a Singaporean telecommunications company and one of four major telecommunication company operating in the country. TPG Singapore was founded in 2016 by Australian businessman David Teoh after winning an auction from Infocomm Media Development Authority (IMDA) for its airwaves rights.

  6. Telephone numbering plan - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbering_plan

    A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. [1] Telephone numbers are the addresses of participants in a telephone network, reachable by a system of destination code routing. Telephone numbering plans are defined in each of ...

  7. Voice over IP - Wikipedia

    en.wikipedia.org/wiki/Voice_over_IP

    Voice over Internet Protocol (VoIP), [a] 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, [2] such as the Internet. The broader terms Internet telephony, broadband telephony, and broadband phone service specifically refer to the ...

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