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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.
3CX produces a telephone system under the same name. The system consists of a number of software-based [13] components. It can be accessed via a Web Client, PWA, Desktop App, Management & Admin consoles, softphone for Windows, and smartphone clients for iOS and Android. 3CX can be used with either SIP phones or the clients, or a combination of ...
His motivation for starting the company was the high cost of existing business phone systems. [ 2 ] [ 3 ] Spencer named it Asterisk after the programming wildcard symbol and the ”star” phone key. It enabled phone calls over the Internet, providing an alternative to hardware-dependent PBX systems at a reduced cost.
Asterisk is a software implementation of a private branch exchange (PBX). In conjunction with suitable telephony hardware interfaces and network applications, Asterisk is used to establish and control telephone calls between telecommunication endpoints such as customary telephone sets, destinations on the public switched telephone network (PSTN) and devices or services on voice over Internet ...
Mitel Networks Corporation is a Canadian telecommunications company. The company previously produced TDM PBX systems and applications, but after a change in ownership in 2001, now focuses almost entirely on Voice-over-IP (VoIP), unified communications, collaboration and contact center products. [2]
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.
TP-Link is a Chinese company that manufactures network equipment and smart home products. The company was established in 1996 in Shenzhen.TP-Link's main headquarters is located in Nanshan, Shenzhen; [2] there is a smaller headquarters in Irvine, California. [3]
Ooma was founded by Andrew Frame, who previously worked for Cisco Systems, and Michael Cerda. [5] [6] Ooma's initial product was a "VoIP in a box" device that had the capability to use peer-to-peer VoIP technology to let users make phone calls over other Ooma users' landline services.