A method of establishing a fax connection on a link which is a portion of a composite connection. The method includes transmitting at least some signals of a negotiation procedure on the link and initiating a retrain on the connection, without identifying a problem on the connection of the link, the retrain being initiated after transmitting the at least some signals of the negotiation procedure but before transmitting data on the data channel of the link due to the negotiation procedure.

A modem transmits data between a computer and a telephone line. The modem features a base unit which receives a data signal from the telephone line and which transmits the data signal over a wireless link. A device receives the data signal over the wireless link and outputs an analog data signal that corresponds to the data signal. A modem card receives the analog data signal from the device, digitizes the analog data signal to produce a digital signal, demodulates the digital signal, and provides an output digital data signal to the computer.

A computer integrated cordless phone. The phone can include a cordless handset transceiver configured for coupling to an antenna shared with a wireless network adapter through a multiplexer/demultiplexer so that both of the cordless handset transceiver and the wireless network adapter transmit and receive data within a common wireless frequency spectrum. In a preferred embodiment, the cordless handset transceiver can include a further configuration for coupling to a central processing unit, audio processing circuitry and power supply within a computing device shared with the wireless network adapter. Notably, the common wireless frequency spectrum can include the ISM frequency band.

In an electronic apparatus for realizing a desired function by combining a plurality of units, a judging part judges whether a combination of the plurality of units is to realize the desired function and a power supply control part controls a supply of power from a power source to at least one of the units of the combination used to realize the desired function based on a judgement result of the judging part.

A method of transmitting data bits over a modem connection. The method includes receiving a first stream of data bits, by a first modem, performing a first set of one or more communication tasks on the first stream of bits, by the first modem, so as to generate a second stream of bits, modulating the second stream of bits, by the first modem, so as to form a modulated signal, transmitting the modulated signal from the first modem to a second modem, demodulating the modulated signal by the second modem, so as to form a third stream of bits, performing on the third stream of bits, a second set of zero or more communication tasks, including a different number of tasks than the first set of tasks, so as to form a fourth stream of bits, and transmitting the fourth stream of bits to a communication unit over a packet based network.