Method for automatically switching the dialing network of dual-mode mobile phone

Abstract

The present invention is to provide a method, which employs a detection control software installed in a dual-mode mobile phone of the GSM network communication system and the low power PHS network communication system, so as to automatically detect the dialing network service area of the best communication rate, when the dual-mode mobile phone enters into a selection mode for automatically switching to the optimized dialing network in a time period, and then dial out via the detected dialing network service area of the best communication rate after a dialing message is received. Thus, the users of the dual-mode mobile phones can enjoy the low communication rate, which will largely reduce the cost of their phone bills.

Dependencies are inferred from the claim text.