Abstract: A module and method for automatically detecting and switching between FXO and FXS interfaces via a single RJ11 is disclosed. The module comprises a RJ11 jack, a USB controller, a modem element, a SLIC module and a DAA module, wherein the USB controller is electrically coupled with a computer for automatically detecting whether a PSTN phone line or a traditional telephone is plugged into the RJ11 jack. According to the detection, the telephone can be connected to the Internet for making and answering a VoIP call via the computer; the computer can be connected to the Internet for making and answering a VoIP call via the modem element; or the computer can make/answer a call to/from the PSTN.

Abstract: The present invention is to provide a digital cordless phone having remote control functionality. When a telephone connection is established upon transmitting and receiving wireless telephony signals by a wireless transceiver module, an MCU receives control signals from a remote terminal via the telephone connection to control the remote control module, by which the wireless transmission module is initiated to send out the corresponding wireless control signals; when an internet connection is established upon transmitting and receiving wireless internet signals by the wireless transceiver module, the MCU can download a control code set for an electronic device from a website via the internet connection, and the control code set is stored in a memory.

Abstract: A 3-in-1 automatic call forward system integrates the domestic phone, the mobile phone and the internet phone for switching the communication method automatically and choosing an appropriate method to transmit or receive a phone call. The users also can choose the same telecom service provider to perform communication with each other for reducing the telephone fees.

Abstract: An auto-swap call box device for VoIP telephony and a method of automatically swapping line connection, in which the control module of the call box controls a subscriber line interface circuit module, a line interface module, and a switch module to sequentially detect the electrical signal of a first phone line socket and the electrical signal of a second phone line socket, so as to set a first sense logic value and a second sense logic value, based on which by the control module the line connections to the first and the second phone line socket are routed.

Abstract: An Internet telephony call box device implemented with a single SLIC module, which includes a first line connector, a second line connector, a switch module, a SLIC module and an LI module. A control module controls the switch module to switch a connection of the first line connector, the second line connector, the SLIC module and the LI module to thereby enable a conventional phone to make/answer a regular or VoIP call. The LI module includes a protection and rectification unit, a line status monitor unit, a ring detection unit and an off-hook emulation unit, which cooperate with the SLIC module to achieve the functions of the prior SLIC and DAA modules.

Abstract: The present invention discloses a low voltage protection device for batteries, comprising a load, being a motor for employing as a power source of a vehicle; a secondary battery, having a rechargeable feature and providing power to said load; a low voltage protection circuit, capable of turning on/off the circuit between said load and said secondary battery; a low voltage detection circuit, for outputting a current for switching said low voltage protection circuit to an off state when the voltage of said secondary battery being detected is lower than a predetermined voltage; and a non-retaining start button, for driving said low voltage protection circuit to activate said connect said low voltage protection circuit while pressing the same to connect said load with said secondary battery.