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  2. Packet delay variation - Wikipedia

    en.wikipedia.org/wiki/Packet_delay_variation

    The term PDV is defined in ITU-T Recommendation Y.1540, Internet protocol data communication service - IP packet transfer and availability performance parameters, section 6.2. In computer networking, although not in electronics, usage of the term jitter may cause confusion. From RFC 3393 (section 1.1):

  3. Quality of service - Wikipedia

    en.wikipedia.org/wiki/Quality_of_service

    Commercial VoIP services are often competitive with traditional telephone service in terms of call quality even without QoS mechanisms in use on the user's connection to their ISP and the VoIP provider's connection to a different ISP. Under high load conditions, however, VoIP may degrade to cell-phone quality or worse.

  4. List of SIP response codes - Wikipedia

    en.wikipedia.org/wiki/List_of_SIP_response_codes

    488 Not Acceptable Here Some aspect of the session description or the Request-URI is not acceptable. [1]: §21.4.26 489 Bad Event The server did not understand an event package specified in an Event header field. [4]: §7.3.2 [6]: §8.3.2 491 Request Pending Server has some pending request from the same dialog. [1]: §21.4.27

  5. Bufferbloat - Wikipedia

    en.wikipedia.org/wiki/Bufferbloat

    Bufferbloat can also cause packet delay variation (also known as jitter), as well as reduce the overall network throughput. When a router or switch is configured to use excessively large buffers, even very high-speed networks can become practically unusable for many interactive applications like voice over IP (VoIP), audio streaming , online ...

  6. Traffic contract - Wikipedia

    en.wikipedia.org/wiki/Traffic_contract

    The maximum allowable rate at which cells can be transported along a connection in the ATM network. The PCR is the determining factor in how often cells are sent in relation to time in an effort to minimize jitter. PCR generally is coupled with the CDVT (Cell Delay Variation Tolerance), which indicates how much jitter is allowable.

  7. Bandwidth throttling - Wikipedia

    en.wikipedia.org/wiki/Bandwidth_throttling

    While Internet service providers (ISPs) prey on the individual's inability to fight them, fines can range up to $25,000 USD for throttling. In the United States, net neutrality, the principle that ISPs treat all data on the Internet the same, and not discriminate, has been an issue of contention between network users and access providers since ...

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