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  2. List of SIP software - Wikipedia

    en.wikipedia.org/wiki/List_of_SIP_software

    3Com VCX IP telephony module: back-to-back user agent SIP PBX; 3CX Phone System, for Windows, Debian 8 GNU/Linux; Aastra 5000, 800, MX-ONE; Alcatel-Lucent 5060 IP Call server; Aricent SIP UA stack, B2BUA, proxy, VoLTE/RCS Client; AskoziaPBX; Avaya Application Server 5300 (AS5300), JITC certified ASSIP VoIP; Bicom Systems IP PBX for telecoms

  3. Telephony Application Programming Interface - Wikipedia

    en.wikipedia.org/wiki/Telephony_Application...

    The first version on Windows 95 was TAPI 1.4. TAPI 1.4 had support for 32-bit applications. The TAPI standard supports both connections from individual computers and LAN connections serving any number of computers. TAPI 2.0 was introduced with Windows NT 4.0. Version 2.0 was the first version on the Windows NT platform.

  4. Avaya 9600-series IP deskphones - Wikipedia

    en.wikipedia.org/wiki/Avaya_9600-series_IP_desk...

    9640 IP Deskphone. Avaya 9600-series IP deskphones are 15 different desk handset devices that are used for unified communications. The phones are compatible with the Avaya Aura platform of products and IP office systems. [1] [2] The systems add high-quality voice codecs like the G.722 codec and new menus over older IP phone series. The 9620 ...

  5. Avaya - Wikipedia

    en.wikipedia.org/wiki/Avaya

    Avaya provides business related equipment for its customers such as cameras, collaboration units, conference phones, headsets, IP phones, room systems, Vantage, and wireless handsets. These devices are compatible with various options for the three services provided to its customers as Avaya Cloud Office, Avaya Spaces, and Avaya UCaaS.

  6. Avaya 1100-series IP phones - Wikipedia

    en.wikipedia.org/wiki/Avaya_1100-series_IP_phones

    The 1120SA is a special-use phone which is certified for use by Sensitive Compartmented Information Facilities (SCIF) users, without an external device. [3] [4]The National Telecommunications Security Working Group (NTSWG) has approved the Avaya IP Phone 1120SA for deployment under the Director of Central Intelligence Directive (DCID 6/9), for VoIP and VoSIP (TSG-6 Type-acceptance CNSS Class-A ...

  7. List of SIP response codes - Wikipedia

    en.wikipedia.org/wiki/List_of_SIP_response_codes

    406 Not Acceptable The resource identified by the request is only capable of generating response entities that have content characteristics but not acceptable according to the Accept header field sent in the request. [1]: §21.4.7 407 Proxy Authentication Required The request requires user authentication. This response is issued by proxies.

  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. Avaya IP Phone 1140E - Wikipedia

    en.wikipedia.org/wiki/Avaya_IP_Phone_1140E

    Avaya IP Phone 1140E in telecommunications is a desktop Internet Protocol client from 1100-series manufactured by Avaya for unified communications. The phone can operate on the Session Initiation Protocol (SIP) or UNIStim protocols. [1] The SIP firmware supports presence selection and notification along with secure instant messaging.