Netsolve, Inc was a 1995 renaming of an Austin, Texas-based company Southwest Network Services, Inc. Netsolve's primary product was IP and frame-relay network management and consultation, and the company was centered on a mid-sized call center and engineering team. Netsolve's larger clients included Cisco and AT&T.
Southwest Network Services (SNS) was a nationwide data communications carrier which began in late 1991. The SNS network was a circuit-switched network consisting of DSC Communications CP4000 and CS1 DCSs (digital cross-connect systems) in many major U.S. cities, as well as smaller cities in Texas. During the early nineties SNS carried subrate (< DS0) modem and DDS traffic, and eventually scaled to DS0, fractional T-1 and T1 products. In 1994, SNS deployed a small frame-relay network consisting of Cascade Communications STDX-3000s, 6000s, and 9000s. The entire carrier network was sold by Netsolve to ICI Communications of Orlando, Florida in early 1996. ICI was later bought by MCI Communications.
SNS additionally sold networking equipment, beginning with Micom and Penril multiplexers. Eventually, SNS sold 3Com, Wellfleet, and finally, Cisco equipment. Netsolve ended this service in 2003.
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3Com Corporation was an American digital electronics manufacturer best known for its computer network products. The company was co-founded in 1979 by Robert Metcalfe, Howard Charney and others. Bill Krause joined as President in 1981. Metcalfe explained the name 3Com was a contraction of "Computer Communication Compatibility", with its focus on Ethernet technology that he had co-invented, which enabled the networking of computers.
Frame Relay is a standardized wide area network (WAN) technology that specifies the physical and data link layers of digital telecommunications channels using a packet switching methodology. Originally designed for transport across Integrated Services Digital Network (ISDN) infrastructure, it may be used today in the context of many other network interfaces.
In computer networking, cell relay refers to a method of statistically multiplexing small fixed-length packets, called "cells", to transport data between computers or kinds of network equipment. It is a reliable, connection-oriented packet switched data communications protocol.
The T-carrier is a member of the series of carrier systems developed by AT&T Bell Laboratories for digital transmission of multiplexed telephone calls.
Cisco Systems, Inc., commonly known as Cisco, is an American-based multinational digital communications technology conglomerate corporation headquartered in San Jose, California. Cisco develops, manufactures, and sells networking hardware, software, telecommunications equipment and other high-technology services and products. Cisco specializes in specific tech markets, such as the Internet of Things (IoT), domain security, videoconferencing, and energy management with leading products including Webex, OpenDNS, Jabber, Duo Security, and Jasper. Cisco is one of the largest technology companies in the world ranking 74 on the Fortune 100 with over $51 billion in revenue and nearly 80,000 employees.
MCI Communications Corp. was a telecommunications company headquartered in Washington, D.C. that was at one point the second-largest long-distance provider in the United States.
Digital Signal 1 is a T-carrier signaling scheme devised by Bell Labs. DS1 is the primary digital telephone standard used in the United States, Canada and Japan and is able to transmit up to 24 multiplexed voice and data calls over telephone lines. E-carrier is used in place of T-carrier outside the United States, Canada, Japan, and South Korea. DS1 is the logical bit pattern used over a physical T1 line; in practice, the terms DS1 and T1 are often used interchangeably.
Ascend Communications was an Alameda, California-based manufacturer of communications equipment that was later purchased by Lucent Technologies in 1999.
StrataCom, Inc. was a supplier of Asynchronous Transfer Mode (ATM) and Frame Relay high-speed wide area network (WAN) switching equipment. StrataCom was founded in Cupertino, California, United States, in January 1986, by 26 former employees of the failing Packet Technologies, Inc. StrataCom produced the first commercial cell switch, also known as a fast-packet switch. ATM was one of the technologies underlying the world's communications systems in the 1990s.
Cabletron Systems, Inc., was a manufacturer of networking computer equipment throughout the 1980s and 1990s primarily based in Rochester, New Hampshire, in the United States. They also had manufacturing facilities in Ironton, Ohio, and in Ireland.
Interlink Computer Sciences, of Fremont, California, was a developer of hardware and software that allowed IBM mainframe computers running the MVS operating system to be connected to non-IBM networks.
Bay Networks, Inc., was a network hardware vendor formed through the merger of Santa Clara, California, based SynOptics Communications and Billerica, Massachusetts based Wellfleet Communications on July 6, 1994. SynOptics was an important early innovator of Ethernet products, having developed a pre-standard twisted pair 10Mbit/s Ethernet product and a modular Ethernet hub product that dominated the enterprise networking market. Wellfleet was an important competitor to Cisco Systems in the router market, ultimately commanding up to a 20% market share of the network router business worldwide. The combined company was renamed Bay Networks as a nod to the legacy that SynOptics was based in the San Francisco area and Wellfleet was based in the Boston area, two cities well known for their bays.
Sentient Networks, Inc., was an American networking hardware company that manufactured of Asynchronous Transfer Mode (ATM) and Frame Relay concentrators and switches for central offices. Founded in 1995 in Sarasota, Florida, the company soon after moved to San Jose, California. It was acquired by Cisco Systems in 1999.
Cascade Communications Corporation was a manufacturer of communications equipment based in Westford, Massachusetts.
Siemens Communications was the communications and information business arm of German industrial conglomerate Siemens AG, until 2006. It was the largest division of Siemens, and had two business units – Mobile Networks and Fixed Networks; and Enterprise.
Cerent Corporation was an optical equipment maker based in Petaluma, California. It was founded in 1997 as Fiberlane Communications with funding from Kleiner Perkins Caufield & Byers and Vinod Khosla as the managing VC. The company was founded with three divisions: Systems in Petaluma, Chip Design in Mountain View, California and Network Management Systems in Burnaby, British Columbia. In early 1998 the company split into two companies with the Petaluma branch becoming Cerent and the Burnaby and Mountain View branches becoming Siara Systems.
Navini Networks was a company that developed an Internet access system based on WiMAX wireless communication standards. This access system was subsequently acquired by Cisco Systems in October, 2007.
Trillium Digital Systems, Inc. developed and licensed standards-based communications source code software to telecommunications equipment manufacturers for the wireless, broadband, Internet and telephone network infrastructure. Trillium was an early company to license source code. The Trillium Digital Systems business entity no longer exists, but the Trillium communications software is still developed and licensed. Trillium software is used in the network infrastructure as well as associated service platforms, clients and devices.
Empirix Inc. is a privately held company which designs and manufactures service assurance testing and monitoring equipment for IP-based communications networks such as Voice-over-Internet-Protocol (VoIP), IP Multimedia Subsystem (IMS)-based, next generation network and 4G wireless networks. Empirix offers enterprise and carrier grade products as well as quality assurance products for network equipment manufacturers. Empirix is headquartered in Billerica, MA. On April 21, 2021, Empirix has been acquired by Infovista, a Network automation software. Infovista, which is majority owned by Apax Partners, says the deal “brings together a team of over 1,000 professionals serving over 1,700 customers across more than 150 countries, including 23 of the top 30 CSPs globally.”
AT&T Communications, Inc., was a division of the AT&T Corporation that, through 23 subsidiaries, provided interexchange carrier and long-distance telephone services.
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