Communication device and method thereof
AssigneesHon Hai Precision Industry Co., Ltd., Ambit Microsystems (Shanghai) Ltd.
InventorsZHEN-HUA XIONG, YU-CHAN NIEH
Life of this patent
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Abstract
A communication device electronically connects with a phone and includes a control unit, a relay, a public switched telephone network (PSTN) interface, a voice over Internet Protocol (VoIP) network interface, and a ring signal detector. The relay is electronically connected with the control unit. The PSTN interface and the VoIP interface are electronically connected with the relay. The ring signal detector is electronically connected with the control unit and the PSTN interface. The control unit controls the relay to connect the phone with the PSTN interface when the ring signal detector detects a PSTN ring signal. In one embodiment, the control unit controls the relay to connect the phone with the VoIP interface.
Claims12
A communication device capable of electronically connecting with a phone, comprising:
- a control unit;
- a relay electronically connected with the control unit;
- a public switched telephone network (PSTN) interface electronically connected with the relay;
- a voice over Internet Protocol (VoIP) network interface electronically connected with the relay;
- and
- a ring signal detector electronically connected with the control unit and the PSTN interface, and is configured to detect a PSTN ring signal;
- wherein the control unit controls the relay to connect the phone with the PSTN interface and the VoIP interface.
A computer-implemented method for connecting a phone to a public switched telephone network (PSTN) and a voice over Internet Protocol (VoIP) network, the method comprising:
- determining whether a PSTN ring signal is received;
- transmitting a low electric potential signal when the PSTN ring signal is received;
- and
- connecting the phone to the PSTN based on the low electric potential signal.
Dependencies are inferred from the claim text.