Abstract: The present disclosure discloses a telephone set and a method of controlling off-hook/on-hook state of a telephone set, and belongs to the field of communications devices. The telephone set includes a handle and a host, where the handle includes a first switch, and the host includes a second switch. According to the present disclosure, the first switch is added on the handle of the telephone set, the second switch is correspondingly added into the host of the telephone set, and a state of the first switch is used to control the second switch to send an off-hook/on-hook signal, so as to enable the telephone set to be off-hook/on-hook.

Abstract: Provided is a method of line-switching and connection for a connector with a combo port. The method is particularly adapted to the connector compatible with two or more link types. The method is to switch the wires to connect a specific link based on the detection of connector type. The step is firstly to initialize the system with the connector. A detecting circuit is configured to detect the type of connector which is plugged into the combo port. The detection covers the physical layer and protocol related to the plugged connector. An automatic switching process is then performed to establish a connection in compliance with the connector type chosen by a controller. In one embodiment, the connector with combo port particularly meets the requirements of connections to RJ-45 connector and RJ-11 connector. After the switching process, the adapted connection is implemented with required configurations.

Abstract: A switching device for providing selective telephone access to multi-telephone line and data line sources. The device can be incorporated within a compatible device or configured as a stand-alone, self-contained device. In the later configuration, it includes a housing, an input port for receiving multiple telephone or data lines and an output port for connecting a compatible device, such as a computer modem, to one of the telephone lines. Switching means are provided for selectively connected the compatible device to one of the multi-telephone or data line sources and for selectively blocking access to the multi-telephone or data line sources. Indicator means are further provided for identifying which of the multi-telephone or data line sources are being connected to the compatible device and whether access is being blocked to the multi-telephone or data line sources.

Abstract: A mobile telecommunications system has a handset and a headset for connection to the handset. The handset includes an RF transceiver for transmitting an outgoing call and receiving an incoming call, and a processor coupled to the RF transceiver that provides audio signals on a first audio path to an audio transducer in the handset and on a second audio path for an audio transducer in the headsets. The headset and handset include respective button switches arranged that the operation has the effect both of initiating and/or accepting a call, and of routing audio signals to the respective first or second audio paths. Embodiments are described including a separate switch for toggling the audio paths, and automatic sensors for detecting use of the headset or handset.

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: This invention enables the number of required ports on a CPU to be reduced, in a switching circuit detecting any exchanged contact point out of plural points having more than three points. In a switching circuit enabling one line to connect to any one of plural lines having more than 3 lines, one line is connected to an input port of the CPU, and one of the plural lines to be switched is connected to a referencing voltage source, and another line of said plural lines to be switched is grounded, and the remaining lines of the plural lines to be switched are connected to output ports of the CPU, and furthermore, the output ports are designed to generate referencing voltages having specified generating timings differing from the timing of data sampling signals transferred to the input port.

Abstract: In a telephone answering machine, means are provided for selecting one of three operating modes. In mode 1, the answering machine answers telephone calls connected via the tip and ring terminals, and does not place a low impedance across the A and A1 terminals. In mode 2, the answering machine answers calls connected via the tip and ring terminals, and places a low impedance across the A and A1 terminals. In mode 3, the answering machine answers telephone calls connected via the A and A1 terminals.

Abstract: The invention relates to telephones that have a base and two handsets or one handset and a base acting as a second handset and which are adapted to be connected to two or more telephone lines. Unlike known telephones designed to be connected to a set number of lines and to no other, the telephone according to the invention comprises an adapter that enables it to be connected equally well to a single line as to two lines or more, depending on the maximum number of lines for which it has been designed, and to provide in each case the same scope for communication between parties as a known telephone connected to the same number of lines. The adapter preferably includes change-over switches that can be operated by acting on a control device that is accessible from outside the telephone, but it may also include change-over switches or wire connections located inside the telephone.

Abstract: The telephone comprises a handset (8) having a receiver and a microphone, and a base (2) on which the handset may be placed. According to the invention, the casing (28) of the base is fitted with another receiver and another microphone and has a shape such that the base may be used as a second handset, thereby enabling two people to converse at the same time with one outside person if the phone is connected to one line or with different outside people if the phone is connected to two lines.

Abstract: A telephone line-switching device comprises first and second switches that interlock and a lock plate extending between the two switches. The push member of the first switch has a cam with which the lock plate usually engages. The push member of the second switch has an inclined portion on which the lock plate always bears. As the push member of the second switch is depressed, the inclined portion horizontally moves the lock plate, permitting the lock plate to disengage from the cam to release the first switch.