Mobile Station and Method for Firstly Supporting Packet Based Text Messaging in Outbound Roaming Service

摘要

the present invention is the use of international roaming services abroad visited network of a mobile terminal in a home network with an outbound text messaging the method, to ensure that the visited network is PS (Packet Switch), even creating a CS (Circuit Switch) based on mangin text message if supported by the service, the ability to send a text message automatically converted to the PS-based support, per billing will use the high CS based on the PS-based text messaging to apply a charging per packet than text messaging preferentially by about text messaging method in a mobile terminal which can reduce the cost burden on the customer. Messaging method in a mobile terminal according to the present invention includes the step of determining whether the conversion of the text message to the circuit-based or packet-based text message in accordance with step, and set a state receiving text message input,.