| 摘要 |
A method and apparatus for integrating a Voice over Internet Protocol (Vo IP) client in a wireless PC card are disclosed. A soft mobile phone client i s combined with a cellular PC card to create a single physical device that i s capable of providing VoIP services to a computer user through the cellular capabilities of the device itself, or alternatively, through any other Inte rnet connectivity available to the computer. When a user inserts the VoIP cl ient/ Cellular PC Card into a computer, a graphical user interface (GUI) wit hin the connection manager software is launched allowing the user to communi cate VoIP function commands to the VoIP client. A check for Internet connect ivity may be performed, at which time the Radio portion of the enhanced PC c ard may be put into an idle state if connectivity is detected, or may altern atively establish Internet connectivity through the cellular portion of the enhanced PC card. (Key words: UMA (universal mobile access), SIP, GAN, IEEE 802.21, access stratum module, softphone, softmobile)
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