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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.
8x8, Inc. is an American provider of Voice over IP products. Its products include cloud-based voice, contact center , video, mobile and unified communications for businesses. Since 2018, 8x8 manages Jitsi .
3CX, Inc., is a software development company and developer of the 3CX Phone System. The 3CX Phone System is a software private branch exchange based on the SIP (Session Initiation Protocol) standard to allow calls via the public switched telephone network (PSTN) or via Voice over Internet Protocol (VoIP) services.
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 ...
Level 3 Communications, Inc. was an American multinational telecommunications and Internet service provider company headquartered in Broomfield, Colorado. [4] It ultimately became a part of CenturyLink (now Lumen Technologies), where Level 3 President and CEO Jeff Storey was installed as Chief Operating Officer, becoming CEO of CenturyLink one year later in a prearranged succession plan.
PAETEC Holding Corporation was a Fortune 1000 telecommunications company headquartered in Perinton, New York, United States. [3] It was founded as the private company PaeTec Communications, Inc. in 1998 by Arunas A. Chesonis.
Debating what constitutes censorship Musk confronted Lemon at times, too, accusing him of being pro-censorship in the context of removing hate speech that may not be technically illegal.
Vertical Communications, Inc. is a corporation that specialized in premises-based private branch exchanges, i.e., business telephone systems. Vertical Communications changed its name on January 1, 2005 from Artisoft, Inc. after acquiring Vertical Networks in September 2004. In September 2005, Vertical Communications acquired Comdial.