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  2. List of SIP response codes - Wikipedia

    en.wikipedia.org/wiki/List_of_SIP_response_codes

    1xx—Provisional Responses. 100 Trying. Extended search being performed may take a significant time so a forking proxy must send a 100 Trying response. [1]: §21.1.1. 180 Ringing. Destination user agent received INVITE, and is alerting user of call. [1]: §21.1.2. 181 Call is Being Forwarded.

  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. Life insurance - Wikipedia

    en.wikipedia.org/wiki/Life_insurance

    Life insurance (or life assurance, especially in the Commonwealth of Nations) is a contract between an insurance policy holder and an insurer or assurer, where the insurer promises to pay a designated beneficiary a sum of money upon the death of an insured person. Depending on the contract, other events such as terminal illness or critical ...

  5. 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 ...

  6. Insurance policy - Wikipedia

    en.wikipedia.org/wiki/Insurance_policy

    In insurance, the insurance policy is a contract (generally a standard form contract) between the insurer and the policyholder, which determines the claims which the insurer is legally required to pay. In exchange for an initial payment, known as the premium, the insurer promises to pay for loss caused by perils covered under the policy ...

  7. Application-level gateway - Wikipedia

    en.wikipedia.org/wiki/Application-level_gateway

    An application-level gateway (ALG, also known as application-layer gateway, application gateway, application proxy, or application-level proxy) is a security component that augments a firewall or NAT employed in a mobile network. [1][2] It allows customized NAT traversal filters to be plugged into the gateway to support address and port ...

  8. Servicemembers' Group Life Insurance - Wikipedia

    en.wikipedia.org/wiki/Servicemembers'_Group_Life...

    Servicemembers' Group Life Insurance. Servicemembers' Group Life Insurance (SGLI) is a life insurance program available to all active duty and reserve members of the uniformed services of the United States. Supervised by the United States Department of Veterans Affairs, the program is administered by the Prudential Insurance Company of America.

  9. SIP trunking - Wikipedia

    en.wikipedia.org/wiki/SIP_trunking

    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 ...