Abstract: An image communication apparatus, to communicate with a telephone set, includes a first control unit, a detection unit, a generation unit, and a second control unit. The first control unit controls the image communication apparatus. The detection unit detects an occurrence of a telephone set off-hook state. The generation unit generates a pseudo-CI signal for ringing the telephone set or an intermittent off-hook voltage to be supplied to the detection unit. The telephone set is connected to a communication line or the generation unit. The second control unit controls the generation unit. Where the telephone set is controlled to wait for a call without being allowed to ring in a power-saving state, the telephone set is connected to the generation unit and placed in the power-saving state. In the power-saving state, the second control unit controls the generation unit to supply a generated intermittent off-hook voltage to the detection unit.

Abstract: A communication apparatus, which captures a line in response to an off-hook operation, includes a first adjustment unit, a detection unit, and a second adjustment unit. The first adjustment unit performs first impedance adjustment according to detection of the off-hook operation. The detection unit detects a line current and a dial tone signal. The second adjustment unit performs second impedance adjustment based on the line current according to a result of detection of the dial tone signal by the detection unit after the first impedance adjustment is performed by the first adjustment unit.

Abstract: An image communication apparatus, to communicate with a telephone set, includes a first control unit, a detection unit, a generation unit, and a second control unit. The first control unit controls the image communication apparatus. The detection unit detects an occurrence of a telephone set off-hook state. The generation unit generates a pseudo-CI signal for ringing the telephone set or an intermittent off-hook voltage to be supplied to the detection unit. The telephone set is connected to a communication line or the generation unit. The second control unit controls the generation unit. Where the telephone set is controlled to wait for a call without being allowed to ring in a power-saving state, the telephone set is connected to the generation unit and placed in the power-saving state. In the power-saving state, the second control unit controls the generation unit to supply a generated intermittent off-hook voltage to the detection unit.

Abstract: A communication apparatus, which captures a line in response to an off-hook operation, includes a first adjustment unit, a detection unit, and a second adjustment unit. The first adjustment unit performs first impedance adjustment according to detection of the off-hook operation. The detection unit detects a line current and a dial tone signal. The second adjustment unit performs second impedance adjustment based on the line current according to a result of detection of the dial tone signal by the detection unit after the first impedance adjustment is performed by the first adjustment unit.

Abstract: An image processing apparatus registers voice call destination information and data transmission destination information for a destination in association with each other. The image processing apparatus executes a voice call with the destination using the voice call destination information, and executes, after the voice call, data transmission to the destination using the data transmission destination information in accordance with a data transmission instruction input by the user.

Abstract: A communication apparatus capable of storing a facsimile signal with high quality. A modem processing unit performs facsimile communication. A modulated digital signal storing unit stores a digital signal that is modulated by the modem processing unit in order to transmit to an opposite-side apparatus in the facsimile communication into a storage unit without converting into an analog signal. A demodulated digital signal storing unit stores a digital signal that is obtained by demodulating a signal received from the opposite-side apparatus in the facsimile communication by the modem processing unit into the storage unit.

Abstract: A present image communication apparatus performs voice communication with an external apparatus via a network, acquires image communication information indicating an image communication capability of the external apparatus, displays an operation screen that is related to image communication and includes at least information indicating whether or not voice communication can be continued when performing image communication based on the acquired image communication information, and controls image communication in accordance with user input that has been made via the operation screen.

Abstract: A communication apparatus comprises a modem configured to performed FAX communication, and a connection unit configured to connect a telephone apparatus. The communication apparatus detects a CNG signal, and controls, in a case where there is an incoming call in a state in which FAX communication is being performed by the modem, if the CNG signal is not detected in the detecting, so that a signal is supplied from a line to the telephone apparatus, and controls, in a case where there is an incoming call in a state in which FAX communication is not being performed by the modem, if the CNG signal is detected in the detecting, so that FAX communication by the modem is initiated.

Abstract: There is provided with an image communication apparatus. A serial interface transfers data between a master and a slave. The master supplies a clock signal to the slave. An oscillation generator generates a clock signal. A switch selects, and supplies to the slave, either the clock signal output from the oscillation generator or the clock signal from the master. A controller stops an operation of the master and controls the switch such that the clock signal output from the oscillation generator is supplied to the slave, upon transition to a power saving mode.

Abstract: A communication apparatus capable of being connected to a plurality of lines to perform communication shifts to a sleep mode when a condition for shifting to the sleep mode is satisfied, and measures a time during which the sleep mode continues. The communication apparatus returns from the sleep mode when the measured time reaches a predetermined time, and determines whether it is connected to at least one of the plurality of lines. If it is determined that the communication apparatus is connected to at least one of the plurality of lines, the communication apparatus is not powered off.

Abstract: A communication apparatus capable of storing a facsimile signal with high quality. A modem processing unit performs facsimile communication. A modulated digital signal storing unit stores a digital signal that is modulated by the modem processing unit in order to transmit to an opposite-side apparatus in the facsimile communication into a storage unit without converting into an analog signal. A demodulated digital signal storing unit stores a digital signal that is obtained by demodulating a signal received from the opposite-side apparatus in the facsimile communication by the modem processing unit into the storage unit.

Abstract: A facsimile apparatus which uses a tone output unit that outputs tones when a VoIP communication in which audio data for a facsimile communication by way of a public telephone line is sent and received over an IP network is being carried out, so as to make a user aware that a non-VoIP communication in which a facsimile communication is carried out by way of the IP network without using audio data is being carried out. When the VoIP communication is being carried out, the tone output unit outputs a first tone for notifying the user of a communication status of the VoIP communication. When the non-VoIP communication is carried out, the tone output unit outputs a second tone so as to notify the user of a communication status of the non-VoIP communication.

Abstract: A communication apparatus has an off-hook detection function, and has a first electric power supply for supplying electric power to a telephone control unit for controlling a telephone apparatus, and a second electric power supply for supplying electric power to an off-hook detection unit for detecting an off-hook of the telephone apparatus. The apparatus causes the off-hook detection unit to detect an off-hook of the telephone apparatus when, from a first power mode, a second power mode, in which electric power consumption is less than in the first power mode, is transitioned into.

Abstract: This image communication apparatus receives a digital signal having a voice bandwidth from an external apparatus capable of communicating through a network, and processes the received digital signal by means of a signal processing unit. If it is determined that the digital signal includes a CNG signal, the image communication apparatus determines that the digital signal is a facsimile signal received as deemed voice, and executes facsimile reception according to the T.30 standard. If it is determined that the digital signal does not include a CNG signal, the image communication apparatus determines that the digital signal is a voice signal, and executes a voice call.

Abstract: There is provided with an image communication apparatus. A serial interface transfers data between a master and a slave. The master supplies a clock signal to the slave. An oscillation generator generates a clock signal. A switch selects, and supplies to the slave, either the clock signal output from the oscillation generator or the clock signal from the master. A controller stops an operation of the master and controls the switch such that the clock signal output from the oscillation generator is supplied to the slave, upon transition to a power saving mode.

Abstract: There is provided with an image communication apparatus. A storage unit stores a reception mode set for each of a plurality of telephone numbers. A determination unit determines, in a case where there is an incoming call, which of the plurality of telephone numbers the incoming call is for. An operation unit operates in accordance with the reception mode stored in the storage unit that is set for the telephone number determined by the determination unit. A distinguishing unit distinguishes a type of the incoming call upon operation in accordance with the reception mode by the operation unit. A control unit controls so as to present to a user information of the incoming call that is distinguished by the distinguishing unit.

Abstract: This image communication apparatus receives a digital signal having a voice bandwidth from an external apparatus capable of communicating through a network, and processes the received digital signal by means of a signal processing unit. If it is determined that the digital signal includes a CNG signal, the image communication apparatus determines that the digital signal is a facsimile signal received as deemed voice, and executes facsimile reception according to the T.30 standard. If it is determined that the digital signal does not include a CNG signal, the image communication apparatus determines that the digital signal is a voice signal, and executes a voice call.

Abstract: A communication apparatus comprises a modem configured to performed FAX communication, and a connection unit configured to connect a telephone apparatus. The communication apparatus detects a CNG signal, and controls, in a case where there is an incoming call in a state in which FAX communication is being performed by the modem, if the CNG signal is not detected in the detecting, so that a signal is supplied from a line to the telephone apparatus, and controls, in a case where there is an incoming call in a state in which FAX communication is not being performed by the modem, if the CNG signal is detected in the detecting, so that FAX communication by the modem is initiated.

Abstract: A communication apparatus has an off-hook detection function, and has a first electric power supply for supplying electric power to a telephone control unit for controlling a telephone apparatus, and a second electric power supply for supplying electric power to an off-hook detection unit for detecting an off-hook of the telephone apparatus. The apparatus causes the off-hook detection unit to detect an off-hook of the telephone apparatus when, from a first power mode, a second power mode, in which electric power consumption is less than in the first power mode, is transitioned into.

Abstract: An image communication apparatus capable of performing calls/facsimiles via an IP network, and equipped with at least two modems and an SLIC that connects a telephone, determines whether an establishment of a session is possible when an INVITE signal, for which a media type is audio, is received. The apparatus controls so that in an automatic reception mode, when it is determined that an establishment of a session is possible, a usable modem is selected from the modems, and treated as audio communication is performed using that selected modem, and also so that when it is determined that the establishment of a session is possible, it is determined whether the SLIC is in use, and when it is not in use, a call of the telephone is performed by the SLIC.