JPH0426258A - Telephone number guide system - Google Patents

Abstract

PURPOSE:To call the inquired telephone number with only a redial key by sending the inquired telephone number to a second communication terminal equipment by a first communication terminal equipment returned through a control channel with the use of the same telephone number. CONSTITUTION:A communication line 3 is divided into an information channel 12 and a control channel 13 by an information switch 11. The inquiry of the telephone number from a communication terminal equipment 1 to a communication station 2 is performed through the information channel, and the communication station 2 returns the answer through the control channel of a communication line 3. The communication terminal equipment 1 reads out the content of a user information part 23 of a received control signal packet, writing it in a memory 16. When calling the just inquired telephone number, a CPU 15 reads out the inquired telephone number stored in the memory 16 by pushing the redial key, resending by using the telephone number. Thus, the call to the inquired telephone number can be performed with only the key such as the redial key or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a telephone number guidance system in a communication system using a communication line having separate information channels and control channels.

(Prior art) Traditionally, inquiries about telephone numbers were made only by voice, so the only way to record the inquired telephone number was to write it down on paper. There was no way for the user to make a call using a key.

In addition, in the l5DN (Integrated Service Digital Network) service, which has been attracting attention recently, the called party can use the caller's
There is a service that receives D and re-calls based on it, but it is not for the phone number inquired,
The service content was similar to the well-known so-called redial function.

(Problems to be Solved by the Invention) The present invention provides a solution for responding to the telephone number inquired as described above.
This was done to solve the problem of not being able to make a call with a single special key such as a redial key, and it is also compatible with services that allow the recipient of the 15DN caller ID to heli-dial the caller. The purpose of the present invention is to provide a telephone number guidance system in which a call can be made to an queried telephone number using a single special key such as a redial key.

[Structure of the Invention] (Means and Effects for Solving the Problems) The telephone number guidance system of the present invention includes a first communication terminal device that inquires about a telephone number, and a second communication terminal device that performs telephone number guidance. ,
These first. In a communication system consisting of a communication line having separate information channels and control channels that connect second communication terminal apparatuses, the first communication terminal apparatus is connected to the second communication terminal apparatus via the information channel of the communication line. The second communication terminal device returns the inquired telephone number to the second communication terminal device via the control channel of the communication line, and the first communication terminal device that receives this returns the telephone number using the same telephone number. It is characterized by transmitting information.

As a result, a call can be made to the queried telephone number using a single special key such as a redial key. In addition, by receiving a response to the phone number you inquired through the control channel,
For example, consistency with services that allow recipients who receive an 15DN caller ID to dial the caller by heli-dial is also possible.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 shows an example of a communication system to which a telephone number guidance system according to the present invention is applied.

That is, 1 is a communication terminal device (first communication terminal device),
Reference numeral 2 denotes a communication station (second communication terminal device) that provides telephone number guidance, and these communication terminal devices W] and the communication station 2 are connected through a communication line 3. Here, the communication line 3 has separate information channels and control channels.

The communication terminal device 1 is configured as shown in FIG. 2, for example. That is, the communication port 1j13 is connected to the switch 11
The signal is divided into an information channel 12 and a control channel 13. Information channel 12 is connected to information channel processing section 14 . The information channel processing unit 14 includes, for example, a telephone receiver, and allows the user to make a telephone call. On the other hand, the control channel 13 is controlled by the CPU 15.
connected to. The CPU 15 controls the control channel 13 and is also capable of writing information into the memory 16 and reading the contents of the memory 16 in response to user requests from the keyboard 17.

FIG. 3 shows control signal packets exchanged between the communication terminal device 1 and the communication station 2.
．． It consists of a caller ID section 22 and a user information section 23.

In such a configuration, first, a redial function that allows the recipient who receives the caller ID of 15DN to heli-dial the caller will be described. When the communication terminal device 1 receives the control signal packet shown in FIG.
The contents of the section 22 (caller ID, usually the caller's telephone number) are read out and written in the memory 16.

After the call ends, if you want to talk again with the caller you just talked to, by pressing a dial key (not shown) provided in the keyboard 17, the CPU 15 receives the signal and stores it in the memory. The caller ID stored in 16 is read out and the call is made again to the corresponding caller name, thereby making it possible to make a call.

Next, the telephone number guidance function will be explained. Telephone number inquiries from communication terminal device 1 to communication station 2 are made via communication line 3.
This is done through the following information channels. When there is an inquiry about a telephone number, the communication station 2 returns a response thereto to the communication terminal device 1 via the control channel of the communication line 3 in the form of a control signal packet shown in FIG. The communication terminal device 1 that has received this reads the contents of the user information section 23 of the received control signal packet (including the inquired telephone number) and writes it into the memory 16.

If you wish to make a call to the telephone number you have just inquired about, press the up-dial key on the keyboard 17. Upon receiving this signal, the CPU 5 reads out the inquired telephone number stored in the memory 16, and calls the telephone number. The number is used to call again, allowing the call to be made.

[Effects of the Invention] As detailed above, according to the present invention, for example, l5DN
This method is compatible with a service in which a recipient who receives a caller's ID can heli-dial a caller, and provides a telephone number guidance system that allows a caller to make a call to an inquired telephone number with a single special key such as a redial key.

[Brief explanation of the drawing]

The figures are for explaining one embodiment of the present invention, and FIG. 1 is a block diagram showing an example of a communication system to which the telephone directory assistance system according to the present invention is applied, and FIG. 2 is a configuration of a communication terminal device. FIG. 3 is a block diagram showing the configuration of a control signal packet. 1... Communication terminal device (first communication terminal device), 2...
Communication station (second communication terminal device), 3... communication line, 1
1...Switch, 12...Information channel, 13...
- Control channel, 14... Information channel processing section, 15
...CPU, 16...Memory, 17...Keyboard, 21...Control information, 22...Issuing ID, 23...
User information.

Claims (1)

[Claims] A first communication terminal device that inquires about a telephone number, a second communication terminal device that provides telephone number information, and
In a communication system consisting of a communication line having separate information channels and control channels that connect communication terminal devices, a first communication terminal device is connected to a second communication terminal device via an information channel of the communication line. The inquired telephone number is sent back from the second communication terminal device to the first communication terminal device via the control channel of the communication line, and the first communication terminal device that receives it makes a call using the same telephone number. A telephone directory assistance system characterized by: