[Motorola announces implementation of Next Generation Dispatch (NGD) IP-based PTT call processing engine.]

Schaumburg, Ill -- Motorola, Inc. announced that it has entered into an agreement with Nextel Communications Inc. to implement Next Generation Dispatch (NGD), a new Internet Protocol (IP)-based Push-To-Talk (PTT) call processing engine. The NGD solution used with Motorola's iDEN technology is designed to replace the call processing system currently used in Nextel's nationwide network.

"The Next Generation Dispatch solution will significantly simplify the iDEN PTT architecture, increase the efficiency of PTT services, and expand network capacity for Nextel's rapidly growing nationwide network," said Adrian Nemcek, president of Motorola's Networks business. "NGD also has the ability to extend its functional operation to enable seamless interoperability for IP-based PTT services on 3G broadband networks that utilize CDMA 1XRTT and EV-DO technology."

"The Next Generation Dispatch solution will enhance Nextel's high quality PTT services by driving greater network efficiencies and product flexibility. It will also provide the added benefit of more easily bridging multiple radio access technologies such as CDMA or OFDM," said Nextel's Executive Vice President and Chief Technology Officer Barry West. "We look forward to working with Motorola to implement this new and innovative technology."

The NGD development contract includes development of the new IP-based PTT server solution, associated hardware needed to deploy the solution in Nextel's largest markets, plus the development of an All Frame Relay backhaul solution from cell sites to the switching core. NGD will replace legacy PTT call processors, voice duplication equipment and router equipment used in the current architectural design.

The NGD agreement includes the development of technology that will enable Nextel to convert its cell site transport facilities to an All Frame Relay IP based network, which is designed to increase the capacity of existing T1 span lines by reducing Nextel's operating expense. Commercialization is scheduled to commence in the first half of 2006.

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