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  2. VoIP phone - Wikipedia

    en.wikipedia.org/wiki/VoIP_phone

    STUN is used in some of the sip phones to enable the SIP/RTP packets to cross boundaries of two different IP networks. A packet becomes unroutable between two sip elements if one of the networks uses private IP address range and other is in public IP address range. Stun is a mechanism to enable this border traversal.

  3. RTP payload formats - Wikipedia

    en.wikipedia.org/wiki/RTP_payload_formats

    The Real-time Transport Protocol (RTP) specifies a general-purpose data format and network protocol for transmitting digital media streams on Internet Protocol (IP) networks. The details of media encoding, such as signal sampling rate, frame size and timing, are specified in an RTP payload format.

  4. List of IP protocol numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_IP_protocol_numbers

    This is a list of the IP protocol numbers found in the field Protocol of the IPv4 header and the Next Header field of the IPv6 header. It is an identifier for the encapsulated protocol and determines the layout of the data that immediately follows the header.

  5. Real-time Transport Protocol - Wikipedia

    en.wikipedia.org/wiki/Real-time_Transport_Protocol

    The Real-time Transport Protocol (RTP) is a network protocol for delivering audio and video over IP networks.RTP is used in communication and entertainment systems that involve streaming media, such as telephony, video teleconference applications including WebRTC, television services and web-based push-to-talk features.

  6. Packet telephony - Wikipedia

    en.wikipedia.org/wiki/Packet_telephony

    It consists of telephony and data tightly coupled on packet-based switched multimedia networks. [1] The goal of packet switched fabric in both LAN and WAN, the vision in to drive voice and data over a single multimedia (packet based N/W) allowing waves to engage in a media rich communication in a natural and straightforward manner.

  7. H.323 - Wikipedia

    en.wikipedia.org/wiki/H.323

    ITU-T Recommendation H.323 is one of the standards used in VoIP. VoIP requires a connection to the Internet or another packet switched network, a subscription to a VoIP service provider and a client (an analogue telephone adapter (ATA), VoIP Phone or "soft phone"). The service provider offers the connection to other VoIP services or to the PSTN.

  8. Voice over IP - Wikipedia

    en.wikipedia.org/wiki/Voice_over_IP

    The RTCP extended report VoIP metrics block specified by RFC 3611 is generated by an VoIP phone or gateway during a live call and contains information on packet loss rate, packet discard rate (because of jitter), packet loss/discard burst metrics (burst length/density, gap length/density), network delay, end system delay, signal/noise/echo ...

  9. PacketCable - Wikipedia

    en.wikipedia.org/wiki/PacketCable

    PacketCable 1.0 comprises eleven specifications and six technical reports which define call signaling, quality of service (QoS), codec usage, client provisioning, billing event message collection, public switched telephone network (PSTN) interconnection, and security interfaces for implement a single-zone PacketCable solution for residential Internet Protocol (IP) voice services.

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