| 摘要 |
A wired voice communication device for establish a voice communication loop between a mobile telephone and at least a wired telephone. The wired voice communication device connect with a earphone jack of the mobile telephone and a line jack of the wired telephone respectively, in order to form the voice communication loop. The wired voice communication device produces periodic signal of the AC voltage when it detects the mobile telephone receive a call, this signal can make the wired telephone ring, and the wired telephone can stop ringing after its headphone is taken up. The wired voice communication device can connect with any mobile telephone on which has the earphone jack; and because it only use the analog signals, so there are not any compatible problems with the mobile telephone service of different frequency channels and different wireless communication protocols, which is provided by different supplier.
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