| 摘要 |
A cellular telephone is disclosed that allows a user to access a VoIP service provider using the WAP protocol to send and receive telephone calls to other users via the internet or other data network. The cellular telephone includes a cellular portion that formats messages to be sent to and from a cellular base station, a WAP portion that interfaces with the internet to send, receive, and display data therefrom. The cellular telephone also includes an audio gateway to sample, analog to digital convert, compress, and packetize an audio signal to prepare the audio signal to be transmitted via the internet to the second user,
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