Abstract: The present invention relates to a method of data service in Code Division Multiple Access(CDMA) mobile communication network, and in particular to a method of servicing an asynchronous communication data which facilitates host access or computer to computer one-to-one communication. The present invention provides a method of servicing asynchronous communication data calling call and incoming call signalling in CDMA mobile communication network which embodies a protocol stack to a medium such as a notebook computer used as a data terminal by applying the user computing environment as it is, while maintaining the configuration and reducing the load of CDMA mobile terminal which currently serives a voice.

Abstract: A facsimile transmission method on the CDMA cellular networks is disclosed and includes the following steps. A data terminal having upper layer protocols of a PPP and above recognizes and stores a modem command until a facsimile modem in a base station is acquired, and requests the fax call caused by a modem dial command with dial number to the mobile terminal through a serial interface. The mobile terminal establishes a fax call with a base station based on the same call processing as that of a voice, and acquires the facsimile modem in a base station. After the call establishment between the mobile terminal and the base station, the upper layer protocols in the data terminal are initialized and negotiated with counterpart protocols in the said base station. The data terminal transmits the fax image data encapsulated by the upper layer protocols to the mobile terminal and the mobile terminal transmits it encapsulated and segmented by the lower layer protocols to the base station.