INTER-NETWORK CONNECTING SYSTEM AND ITS CONNECTING DEVICE

摘要

PROBLEM TO BE SOLVED: To easily execute connection between communication networks with different forms and also to improve the convenience of a user. SOLUTION: A public communication network 1A is connected to the public communication network 1B with a connecting device 7 which can deal with the respective interfaces of the public communication networks 1A and 1B with the different forms so that communication between a PHS telephone set 5 and a portable telephone set 9 which are connected to the respective communication networks is executed.