Nortel

Nortel, formerly known as Northern Telecom Limited, is a multinational telecommunications equipment manufacturer headquartered in Toronto, Ontario, Canada. In June 2009, the company announced it would cease operations and sell off all of its business units. In 2010, Avaya bought the Enterprise Solutions business unit, including Nortel’s stake in Nortel Government Solutions and DiamondWare.

Nortel makes telecommunications and computer network equipment and software. They serve both general businesses and communications carriers (landline telephone, mobile phone, and cable TV carriers). Technologies include telephony (voice) equipment of all kinds, optical fiber, local wireless, and multimedia.

At the start of 2010, based on membership in Nortel’s benefit plan, there were 1,637 employees working for Nortel Networks and 982 working for Nortel Technology in Canada. Nortel operations are divided into the following segments:

Carrier Networks (CN): Mobility networking solutions, including CDMA, GSM, and UMTS, and carrier networking solutions, both circuit and packet based.
Enterprise Solutions (ES): Enterprise networking solutions, including circuit and packet based voice, data, security, multimedia messaging and conferencing, and call centers.
Metro Ethernet Networks (MEN): Optical and metropolitan area networking solutions, for carrier and enterprise customers.
Global Services (GS): Services in four areas: network implementation, network support, network management, and network applications (including web services).