Communications network gateway for networks with different address spaces including Internet and wireless has address translation and data conversion units

摘要

A (1 -32, A-D) has receive (11) and transmit (12) interface units to transfer data from terminals (21, 22) in a wireless network (20) to terminals (31-33) in an IP (Internet Protocol) network (30) and an address translation unit (13) with memory (14) converting addresses between address spaces and a converter (16) to convert data between formats including compression and packetization and the reverse.