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  2. SIP URI scheme - Wikipedia

    en.wikipedia.org/wiki/SIP_URI_scheme

    The SIP URI scheme is a Uniform Resource Identifier (URI) scheme for the Session Initiation Protocol (SIP) multimedia communications protocol. A SIP address is a URI that addresses a specific telephone extension on a voice over IP system. Such a number could be a private branch exchange or an E.164 telephone number dialled through a specific ...

  3. Session Initiation Protocol - Wikipedia

    en.wikipedia.org/wiki/Session_Initiation_Protocol

    v. t. e. The Session Initiation Protocol (SIP) is a signaling protocol used for initiating, maintaining, and terminating communication sessions that include voice, video and messaging applications. [1] SIP is used in Internet telephony, in private IP telephone systems, as well as mobile phone calling over LTE (VoLTE).

  4. Telephone number mapping - Wikipedia

    en.wikipedia.org/wiki/Telephone_number_mapping

    Telephone number mapping is a system of unifying the international telephone number system of the public switched telephone network with the Internet addressing and identification name spaces. Internationally, telephone numbers are systematically organized by the E.164 standard, while the Internet uses the Domain Name System (DNS) for linking ...

  5. GCKey - Wikipedia

    en.wikipedia.org/wiki/GCKey

    GCKey (French: CléGC) is a standards-based authentication service provided by the Government of Canada. [1] It provides Canadians with secure access to online information and government services and assists Canadian federal government departments in managing and controlling access to their on-line programs through the provisioning of standardized registration and authentication processes.

  6. Uniform Resource Identifier - Wikipedia

    en.wikipedia.org/wiki/Uniform_Resource_Identifier

    A Uniform Resource Identifier (URI), formerly Universal Resource Identifier, is a unique sequence of characters that identifies an abstract or physical resource, [1] such as resources on a webpage, mail address, phone number, [2] books, real-world objects such as people and places, concepts. [3] URIs are used to identify anything described ...

  7. List of SIP response codes - Wikipedia

    en.wikipedia.org/wiki/List_of_SIP_response_codes

    416 Unsupported URI Scheme Request-URI is unknown to the server. [1]: §21.4.14 417 Unknown Resource-Priority There was a resource-priority option tag, but no Resource-Priority header. [10] 420 Bad Extension Bad SIP Protocol Extension used, not understood by the server. [1]: §21.4.15 421 Extension Required

  8. SIP extensions for the IP Multimedia Subsystem - Wikipedia

    en.wikipedia.org/wiki/SIP_extensions_for_the_IP...

    The Session Initiation Protocol (SIP) is the signaling protocol selected by the 3rd Generation Partnership Project (3GPP) [1][2] to create and control multimedia sessions with multiple participants in the IP Multimedia Subsystem (IMS). It is therefore a key element in the IMS framework. SIP was developed by the Internet Engineering Task Force ...

  9. List of URI schemes - Wikipedia

    en.wikipedia.org/wiki/List_of_URI_schemes

    file - File URI scheme. ftp – File Transfer Protocol. http – Hypertext Transfer Protocol. https – Hypertext Transfer Protocol Secure. imap – Internet Message Access Protocol. irc – Internet Relay Chat. nntp – Network News Transfer Protocol. as well as many lesser known schemes like: acap – Application Configuration Access Protocol.