Press Release

December 13, 2001

RTX Telecom proudly announced today that the RTX Telecom Bluetooth Host Controller Core has been granted Bluetooth approval.

The Host Controller exposes the HCI API software that can interface to an existing Host Protocol and Application, thus running the Host Controller Core, Host Protocol Stack and applications on the same CPU. The Host Controller can also interface to the Transport Layer drivers used to interface a Host Protocol and Application on another CPU. Secondly, the Host Controller Core interfaces directly to any operating system using a kernel abstraction layer. The Host Controller Core can be employed with a variety of different RF solutions using an RF-independent hardware abstraction layer and the appropriate RF driver.

The Host Controller Core consists of different layers: Transport Layer, Data Manager, Event Manager, Link Manager and Upper Link Controller. Together, these layers handle communication between the Bluetooth module and the Host, such as link set-up and control, encryption key negotiation, authentication, data rate negotiation, and general control of slave modes, re-transmission, inquiry and inquiry scan, and the low power modes: sniff and hold.

To date, the RTX Telecom Host Controller Core has been proven with Bluetooth RF solutions from National Semiconductor, Silicon Wave and Conexant. The Host Controller Core is currently being licensed to customers in the Bluetooth market.

"The approval of our Bluetooth Host Controller Core is yet another Bluetooth IP approval won by RTX Telecom. This once again places us at the forefront of Bluetooth development," said Mr Joergen Elbaek, managing director. "With the approval of our Host Protocol Stack and the successful approval of our Baseband Core in May 2001, RTX Telecom is one of the few companies in the world to offer a complete IP solution that has been granted approval."