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  2. Voice over IP - Wikipedia

    en.wikipedia.org/wiki/Voice_over_IP

    The distinction lies in whether encryption is applied in the telephone endpoint or in the network. [51] Secure voice over secure IP may be implemented by encrypting the media with protocols such as SRTP and ZRTP. Secure voice over IP uses Type 1 encryption on a classified network, such as SIPRNet.

  3. Media Gateway Control Protocol - Wikipedia

    en.wikipedia.org/wiki/Media_Gateway_Control_Protocol

    The Media Gateway Control Protocol (MGCP) is a telecommunication protocol for signaling and call control in hybrid voice over IP (VoIP) and traditional telecommunication systems. It implements the media gateway control protocol architecture for controlling media gateways connected to the public switched telephone network (PSTN). [1]

  4. List of Cisco products - Wikipedia

    en.wikipedia.org/wiki/List_of_Cisco_products

    The vehicles are self-contained and provide wired and wireless services including voice and radio interoperability, voice over IP, network-based video surveillance and secured high-definition video-conferencing for leaders and first responders in crisis areas with up to 3 Mbit/s of bandwidth (up and down) via a 1.8-meter satellite antenna.

  5. VoIP phone - Wikipedia

    en.wikipedia.org/wiki/VoIP_phone

    Flip VoIP phone. A VoIP phone or IP phone uses voice over IP technologies for placing and transmitting telephone calls over an IP network, such as the Internet. [1] This is in contrast to a standard phone which uses the traditional public switched telephone network (PSTN).

  6. Softswitch - Wikipedia

    en.wikipedia.org/wiki/Softswitch

    Often a softswitch is implemented to switch calls using voice over IP (VoIP) technologies, [1] but hybrid systems exist. Although the term softswitch technically refers to any such device, it is conventionally applied to a device that handles IP-to- IP phone calls, while the phrase access server or "media gateway" is used to refer to devices ...

  7. Cisco - Wikipedia

    en.wikipedia.org/wiki/Cisco

    The vehicles are self-contained and provide wired and wireless services including voice and radio interoperability, voice over IP, network-based video surveillance and secured high-definition video-conferencing for leaders and first responders in crisis areas with up to 3-72 Mbit/s of bandwidth (up and down) via a 1.8-meter satellite antenna.

  8. SIP trunking - Wikipedia

    en.wikipedia.org/wiki/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 communications facilities. [1]

  9. Carrier Routing System - Wikipedia

    en.wikipedia.org/wiki/Carrier_Routing_System

    Cisco CRS-1 Backbone Core Router. Carrier Routing System (CRS) is a modular and distributed core router developed by Cisco Systems Inc that enables service providers to deliver data, voice, and video services over a scalable IP Next-Generation Network (NGN) infrastructure. In a network topology, these routers are generally positioned in the ...

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