Prior to merging with Sprint Corporation in 2005,

Prior to merging with Sprint Corporation in 2005, Nextel Communications, Inc. was a publicly traded company. Shares traded on the NASDAQ under the ticker symbol NXTL. Nextel was headquartered in Reston, Virginia, United States. The core of the business model was to buy these fleet dispatch frequencies from existing operators at a substantial discount when compared to the cost for equivalent bandwidth available via auction from the Federal Communications Commission. The Motorola i850, i860, i870, and i880 were the only phones to support WiDEN without modification. In October 2005, in order to free up network capacity for cellular calls due to rebanding, Sprint removed the ability to connect to the WiDEN service from all Nextel towers. While the sound produced is still called a “ring”, more-recently manufactured telephones electronically produce a warbling, chirping, or other sound. Variation of the ring signal can be used to indicate characteristics of incoming calls (for example, rings with a shorter interval between them might be used to signal a call from a given number).