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  2. Centrex - Wikipedia

    en.wikipedia.org/wiki/Centrex

    Centrex is a portmanteau of central exchange, a kind of telephone exchange. It provides functions similar to a PBX, but is provisioned with equipment owned by, and located at, the telephone company premises. [1] Centrex service was first installed in the early 1960s in New York's financial district by New York Telephone.

  3. Business telephone system - Wikipedia

    en.wikipedia.org/wiki/Business_telephone_system

    An IP PBX handles voice calls over the Internet Protocol (IP), bringing benefits for computer telephony integration (CTI). An IP-PBX can exist as physical hardware or can carry out its functions virtually, performing the call-routing activities of the traditional PBX or key system as a software system. The virtual version is also called a "Soft ...

  4. List of SIP software - Wikipedia

    en.wikipedia.org/wiki/List_of_SIP_software

    Dialexia VoIP Softswitches, IP PBX for medium and enterprise organizations, billing servers. IBM WebSphere Application Server - Converged HTTP and SIP container JEE Application Server; Interactive Intelligence Windows-based IP PBX for small, medium and enterprise organizations; Kerio Operator, IP PBX for small and medium enterprises

  5. Lumos Networks Expands IP Centrex Product Line With ... - AOL

    www.aol.com/2013/02/06/lumos-networks-expands-ip...

    Lumos Networks Expands IP Centrex Product Line With Business Communicator WAYNESBORO, Va.--(BUSINESS WIRE)-- Lumos Networks (NAS: LMOS) , a leading provider of fiber-based products across the Mid ...

  6. List of telephone switches - Wikipedia

    en.wikipedia.org/wiki/List_of_telephone_switches

    NEAX31 (Discrete Electronic CPU, 4-stage Crossbar switching fabric, PBX) NEAX12 (Analog / Digital Hybrid PBX) NEAX22 (Analog / Digital hybrid PBX) NEAX 2000/1000; NEAX2400 (Fully Digital PBX) XN120; NEC Univerge SL1000 (Small or Medium Sized, VoIP And TDM) Enterprise IP Systems NEC Univerge SV7000 (Fully IP, VoIP and TDM) Pure IP Communication ...

  7. IP PBX - Wikipedia

    en.wikipedia.org/wiki/IP_PBX

    An IP PBX is a PBX system with IP connectivity and may provide additional audio, video, or instant messaging communication utilizing the TCP/IP protocol stack. Voice over IP (VoIP) gateways can be combined with traditional PBX functionality to allow businesses to use their managed intranet to help reduce long distance expenses and take ...

  8. Comparison of VoIP software - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_VoIP_software

    This is a comparison of voice over IP (VoIP) software that examines applications and systems used for conducting voice and multimedia communications across Internet Protocol (IP) networks. VoIP technology has transformed telecommunications by offering alternatives to traditional telephony systems while providing enhanced features and cost savings.

  9. UNIStim - Wikipedia

    en.wikipedia.org/wiki/UNIStim

    UNIStim (or Unified Networks IP Stimulus) is a deprecated Telecommunications protocol developed by Nortel (now acquired by Avaya) for IP Phone (terminals and soft phones) and IP PBX communications. Most manufacturers of IP PBX equipment ( Aastra , Alcatel , Avaya ...) have followed the same path, developing their own proprietary protocols .

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