H - Electricity – 04 – L
Patent
H - Electricity
04
L
379/1, 325/3
H04L 9/00 (2006.01) H04K 1/00 (2006.01) H04M 11/00 (2006.01) H04Q 7/38 (2006.01)
Patent
CA 1264355
CM00290H GATEWAY SYSTEM AND METHOD FOR INTERCONNECTING TELEPHONE CALLS WITH A DIGITAL VOICE PROTECTED RADIO NETWORK ABSTRACT A Gateway apparatus and method is disclosed which permits secure, end-to-end communications to exchange automatically between predetermined authorized subscribers operating on a radio network and a telephone network. The Gateway determines whether clear or coded message signals are to be routed from one network to another without utilizing an intervening decryption and encryption to accomplish the interconnection. The Gateway includes a radio network interface, a telephone network interface, a signal processor, and a supervisory controller. A Remote Interface at the location of the predetermined telephone subscriber is utilized to adapt a conventional telephone for clear and coded modes of operation. Moreover, an alternate embodiment is disclosed which permits two radio networks to be interconnected via the telephone network by utilizing two Gateways.
541117
Gowling Lafleur Henderson Llp
Motorola Inc.
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