JPH04158662A - Modem provided with network control function - Google Patents

Abstract

PURPOSE:To urge a proper operation even when a communication opposite party is a person by outputting a voice signal registered in advance to the communication opposite party in the state of answer tone or carrier wait at automatic dialing. CONSTITUTION:A voice signal such as a message informed at the arrival of a call to a communication opposite party in advance is inputted by a voice input section 1, converted into a digital voice signal and stored in a voice storage section 2. Then a network control section 6 is hooked on at automatic dialing, a ring back tone is detected after dialing and after the ring back tone is lost or a line reverse is detected, the answer tone or the carrier or the like is monitored. A digital voice signal stored in the voice storage section 2 is read simultaneously by a voice transmission section 3, converted into an analog voice signal and sent to the communication opposite party through the network control section 6. Thus, even in the case of making dialing to an erroneous destination or the communication opposite party is not an automatic incoming MODEM, a fact of a silent telephone call is avoided.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a modem with a network control function.

[Conventional technology]

As a conventional modem with network control function, it detects the R, S and ER double signals of the R9232C interface signal, dials the telephone line when it receives an automatic dialing command from the host device, detects an incoming call, Furthermore, some devices have a function of entering a data communication state when a carrier is detected.

[Problem to be solved by the invention]

When making an automatic call using the above-mentioned conventional modem with network control function, line reversal or 210 call response depending on the other party's incoming call response is required.
When the carrier is received after detecting the 0Hz answer tone, no signal is sent to the destination, so if you dial the wrong destination or the other party does not have an automatic modem, it is just a silent call. There was a drawback that it became

[Means for Solving the Problems] A modem with a network control function according to the present invention includes a network control means for controlling connection with a communication partner via a telephone line, a modem section for communicating with the communication partner, and a voice control function. a voice registration means for inputting a message, converting it into a corresponding voice signal, and storing the same; The system is configured to read a voice signal registered in advance in the telephone line and send it to the communication partner via the telephone line, and to monitor information indicating the communicable status of the communication partner, such as an answer tone and a carrier.

In the above configuration, when the automatic call is made, if information indicating the communicable state is received from the communication partner within a predetermined time, the modem unit starts communication, and even after the predetermined time has elapsed, the communicable state remains. Receive information indicating 2
If not, the telephone line may be disconnected from the communication partner.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention. An audio input unit 1 that inputs audio and converts it into a corresponding digital audio signal, an audio storage unit 2 that stores this digital audio signal, and an audio input unit that converts the digital audio signal into an analog audio signal. It includes a transmission section 3, a network control section 6 connected to a telephone line 7, a modem section 5 having a basic modem function, and a main control section 4 that controls each of the above sections.

Regarding the storage of the audio signal, it is also possible to use a magnetic tape device or the like to store the audio signal as an analog signal without converting it into a digital signal.

Next, the operation will be explained. FIG. 2 is a sequence diagram at the time of automatic calling.

In advance, a voice such as a message to notify a communication partner when a call arrives is inputted from the voice input section 1, converted into a digital voice signal, and stored in the voice storage section 2.

When making an automatic call, the network control unit 6 goes off-hook and dials the specified telephone number. After dialing, a ringback tone is detected and when the ringback tone disappears or a line reverse is detected, answer tone monitoring, carrier monitoring, etc. are performed. At the same time,
The digital audio signal stored in the audio storage section 2 is read out by the audio sending section 3, converted into an analog audio signal, and sent to the communication partner through the network control section 6.

Even when the output source in the transmission direction is connected to the audio sending section 3 and connected to the telephone line 2, the signal in the reception direction is connected to the modem section 5, and the answer tone or carrier from the communication partner is constantly monitored. has been done. When the answer tone or carrier is detected, the audio signal speed ratio is stopped by 3, and the connection of the output source in the transmission direction of the network control section 6 is also switched to the modem section 5 side. Upon detection of the carrier, the modem section 5 sends out the carrier, and the modem section 5 enters a communication state with the communication partner.

If the network control unit 6 does not detect a carrier from the communication partner even after a certain period of time has elapsed after transmitting the registered voice signal, the network control unit 6 goes on-hook and disconnects the line.

〔Effect of the invention〕

As explained above, the present invention outputs a pre-registered voice signal to the communication partner during an answer tone during automatic dialing or a carrier waiting state, so even if the communication partner is a person instead of an automatic modem, However, it no longer becomes a silent call, and the registered voice can prompt appropriate actions such as instructing the connection of a modem.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a sequence diagram at the time of automatic calling according to an embodiment of the present invention. 1. Audio input section, 2. Audio storage section, 3. Audio output section 24. Main control section, 5. Modem section, b. Network control section, 7.
··telephone line.

Claims (1)

[Claims] 1. A network control means for controlling connection with a communication partner via a telephone line, a modem unit for communicating with the communication partner, and a modem unit for inputting a voice message and converting it into a corresponding voice signal. When the network control means automatically makes a call to the telephone line and detects an incoming call response from the communication partner, it reads out the voice signal registered in advance in the voice registration means and transmits the voice signal to the telephone line. A modem with a network control function, characterized in that it transmits to the communication partner via a line, and monitors information indicating a communicable state such as an answer tone and a carrier from the communication partner. 2. In the modem with a network control function according to claim 1, when the automatic call is made, if information indicating the communicable state is received from the communication partner within a predetermined time, the modem starts communication; A modem with a network control function, characterized in that if the information indicating the communicable state is not received after a period of time, the modem disconnects the telephone line from the communication partner.