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  2. SIP provider - Wikipedia

    en.wikipedia.org/wiki/SIP_provider

    A SIP provider (Session Initiation Protocol) is any telecommunications company which provides SIP trunking to customers, usually businesses. Many companies provide SIP "termination" (outbound calling) and "origination" (inbound calling, usually with a plain old telephone service (POTS) phone number, called a direct inward dialing (DID).

  3. iNum Initiative - Wikipedia

    en.wikipedia.org/wiki/INum_Initiative

    Voxbone offered free SIP termination to all service providers who offered it to their customers at or below the cost of a local call, leading many providers to offer the service at no cost. For example, Callcentric and ippi offered free iNum numbers and calls to any customer, [5] [6] and VoIP.ms offered them at no additional cost to existing ...

  4. 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 ...

  5. sipservice - Wikipedia

    en.wikipedia.org/wiki/Sipservice

    Until 2008, SIPSERVICE also peered free of charge with a number of other VoIP providers, e.g., freenet iPhone, FreeWorldDialup, IAXtel, however this service was discontinued. SIPSERVICE supported three different VoIP standards, SIP, IAX and H.323. There was also a reseller service available, which allowed to handle own customers and create own ...

  6. SIP trunking - Wikipedia

    en.wikipedia.org/wiki/SIP_trunking

    SIP trunking is a voice over Internet Protocol (VoIP) technology and streaming media service based on the Session Initiation Protocol (SIP) by which Internet telephony service providers (ITSPs) deliver telephone services and unified communications to customers equipped with SIP-based private branch exchange (IP-PBX) and unified communications facilities. [1]

  7. Comparison of VoIP software - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_VoIP_software

    Mixed: free software versions under GNU GPLv3 + shareware versions under gplv3 with exception of including proprietary code macOS version proprietary on App Store, free version limited to sponsored SIP provider; Windows version proprietary; Linux version open source ICE, SIP, MSRP, RFB (VNC), XCAP: Opus, speex, G.722, GSM, iLBC, PCMU, PCMA

  8. 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.

  9. Linphone - Wikipedia

    en.wikipedia.org/wiki/Linphone

    Linphone (contraction of Linux phone) is a free voice over IP softphone, SIP client and service. It may be used for audio and video direct calls and calls through any VoIP softswitch or IP-PBX . Linphone also provides the possibility to exchange instant messages.