| 摘要 |
A system for facsimile transmission using an Internet Protocol (IP) telephone is disclosed. This system includes an analog facsimile machine connected to an interface device, which is in turn connected to an IP telephone. The interface device includes a two-to-four wire converter and a switch. The switch is coupled to the IP phone and to the two-to-four wire converter so as to enable switching between facsimile transmission and voice call.
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