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  2. Skype for Business - Wikipedia

    en.wikipedia.org/wiki/Skype_for_Business

    Website. www.skype.com /en /business. Skype for Business (formerly Microsoft Lync and Office Communicator) is an enterprise software application for instant messaging and videotelephony developed by Microsoft as part of the Microsoft 365 (formerly Office) suite. It is designed for use with the on-premises Skype for Business Server software, and ...

  3. Skype for Business Server - Wikipedia

    en.wikipedia.org/wiki/Skype_for_Business_Server

    Skype for Business Server (formerly Microsoft Office Communications Server and Microsoft Lync Server) is real-time communications server software that provides the infrastructure for enterprise instant messaging, presence, VoIP, ad hoc and structured conferences (audio, video and web conferencing) and PSTN connectivity through a third-party gateway or SIP trunk. [3]

  4. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.

  5. International direct dialing - Wikipedia

    en.wikipedia.org/wiki/International_direct_dialing

    An "international call prefix", "international dial-out code" or "international direct dial code" (IDD code) is a trunk prefix that indicates an international phone call. In the dialling sequence, the prefix precedes the country calling code (and, further, the carrier code, if any, and the destination telephone number).

  6. List of SIP response codes - Wikipedia

    en.wikipedia.org/wiki/List_of_SIP_response_codes

    An intermediary machine or process rejected the call attempt. [25] This contrasts with the 607 (Unwanted) SIP response code in which a human, the called party, rejected the call. The intermediary rejecting the call should include a Call-Info header with "purpose" value "jwscard", with the jCard [26] with contact details. The calling party can ...

  7. Click-to-call - Wikipedia

    en.wikipedia.org/wiki/Click-to-call

    Click-to-call. Click-to-call, also known as click-to-talk, click-to-dial, click-to-chat and click-to-text, is a form of Web-based communication in which a person clicks an object (e.g., button, image or text) to request an immediate connection with another person in real-time either by phone call, Voice-over-Internet-Protocol (VoIP), or text.

  8. Microsoft Teams - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Teams

    Proprietary commercial cloud software. Website. teams.microsoft.com. Microsoft Teams is a team collaboration application developed by Microsoft as part of the Microsoft 365 family of products, offering workspace chat and video conferencing, file storage, and integration of proprietary and third-party applications and services.

  9. Skype - Wikipedia

    en.wikipedia.org/wiki/Skype

    Skype was founded in 2003 by Niklas Zennström, from Sweden, and Janus Friis, from Denmark. [ 18 ] The software was created by Estonians Ahti Heinla, Priit Kasesalu, Jaan Tallinn, and Toivo Annus. [ 19 ] Friis and Annus are credited with the idea of reducing the cost of voice calls by using a P2P protocol like that of Kazaa. [ 20 ]