| 摘要 |
A portable adapter for a cellular telephone set enables the use of the handset for wireless voice over Internet protocol communications. Some embodiments of the present invention further enable such communication over wired connection, such as Ethernet. Some embodiments further provide a means for using the adapter to provide VOIP capabilities for wired standard telephone sets. Some embodiments further provide power to the cellular telephone set. Some embodiments provide means for control communications with the adapter along with signal communications carried by the adapter. Preferred embodiments employ a form factor appropriate for portability, with some embodiments implemented in a form factor conforming to that of the cellular handset battery, thereby enhancing portability and utility.
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