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2. List of VoIP companies - Wikipedia

   en.wikipedia.org/wiki/List_of_VoIP_companies

   Company Base of operations Country Services provided EMAXX: Concord, Ontario: Canada: A-Z voip routes seller Access Communications: Regina, Saskatchewan

3. 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

4. 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 ...

5. Grandstream Networks - Wikipedia

   en.wikipedia.org/wiki/Grandstream_Networks

   Founded in 2002, Grandstream Networks is a manufacturer of IP voice and video communications equipment, video surveillance, [1] gateways and analog telephone adapters (ATAs), and Asterisk-based IP-PBX appliances. Grandstream supplies small and medium businesses and consumers with open-standard SIP-based products.

6. Bicom Systems - Wikipedia

   en.wikipedia.org/wiki/Bicom_Systems

   Bicom Systems is a producer and vendor of Asterisk (PBX)-based unified communications devices for VoIP businesses. Bicom Systems uses open standards telephony. [1] [2] Products include all of the software and hardware components involved in building a VoIP business or ITSP. [3]

7. 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 ...