JP2000069169A - Telephone line switching device corresponding to call origination telephone number information service - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a telephone line switching device corresponding to a call origination telephone number informing service capable of smoothly selecting and connecting equipment to be the communication object of the call origin in the case a call is terminated. SOLUTION: This device is provided with an outside line connection port 3 and plural extension line connection ports 5 identified by intrinsic port IDs including a telephone set dedicated port 5a. At the call termination, informing control information transmitted from the call origin is acquired. When the informing control information is 'informing', a prescribed connection sequence is started to the telephone set dedicated port 5a. When the informing control information is 'non-informing', the outside line connection port 3 is monitored for prescribed time, and if the port ID is sent, the prescribed connection sequence is started to the extension line connection port 5b corresponding to it. In the case the port ID is not sent, the connection sequence is started to the telephone set dedicated port 5a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone line switching device which allows a plurality of devices such as a karaoke performance terminal and a telephone to share a telephone line in a house into which the telephone line is drawn, and more particularly to a telephone line switching device. The present invention relates to a telephone line switching device that supports a notification service.

[0002]

2. Description of the Related Art As is well known, a communication karaoke system includes:
A host device operated by a karaoke company, etc.
It is composed of a number of karaoke performance terminals connected to this via a telephone line. By the way, usually, the frequency of the karaoke performance terminal using the telephone line is low, and it is uneconomical to prepare a dedicated telephone line for the karaoke performance terminal. Therefore, a karaoke shop or the like is provided with a telephone line switching device that allows a karaoke performance terminal and a communication device such as a telephone and a facsimile device to share a telephone line.

FIG. 4 shows an example of a telephone line switching device. This switching device has one external line connection port 3,
A plurality of extension connection ports 5 are provided, and a telephone line N from the exchange M is connected to the outside connection port 3. On the other hand, each extension connection port 5 is assigned a unique port ID.
One of the extension connection ports 5 is a telephone dedicated port 5a to which a communication device D such as a telephone or a facsimile device is connected, and a karaoke performance terminal K is connected to the other extension connection port 5b. The entire switching device is totally controlled by a central control unit 1 which is a computer including a CPU and a memory. The external line control monitoring unit 9 and the internal line control monitoring unit 11 perform connection control and state monitoring of each port, such as detection of an incoming call, formation of a DC loop, transmission of a ringing tone, and the like, according to instructions from the central control unit 1. Further, the line switching unit 13 appropriately switches the extension connection port 5 connected to the external line connection port 3 according to the instruction of the central control unit 1.

FIG. 5 shows an operation sequence of the telephone line switching device. When the exchange M inverts the polarity of the telephone line N and sends a call signal, the telephone line switching device closes the DC loop in response. In response, the exchange M reverses the polarity of the line, so that the telephone line switching device and the exchange M are in a talking state. The telephone line switching apparatus waits for the port ID to be transmitted from the exchange M for a predetermined time (about 8 seconds) while maintaining the communication state.

[0005] When the port ID is transmitted, the telephone line switching device inverts the polarity of the extension connection port 5b corresponding to the port ID and transmits a call signal. The karaoke performance terminal K connected to the extension connection port 5b closes the DC loop in response. In response to this, the telephone line switching device sets the extension connection port 5b to the outside connection port 3 where the polarity of the line is also reversed while in a talking state.
Is connected to the karaoke performance terminal K and the exchange M.

On the other hand, if the port ID has not been transmitted, the telephone line switching device inverts the polarity of the telephone dedicated port 5a and transmits a call signal. The communication device D connected to this port closes the DC loop in response to this. In response to this, the telephone line switching device switches the telephone dedicated port 5a to connect to the external line connection port 3 in which the polarity of the line is also reversed while the telephone is in a talk state, thereby connecting between the communication device D and the exchange M. Is in a call state.

The telephone line switching device detects an external line transmission request (such as "zero transmission") sent to the extension connection port 5 where the karaoke performance terminal K or the communication device D is located, and uses the external line connection port 3 for use. And a basic function as a private branch exchange that allows a device that has transmitted an external line transmission request to use the external line connection port 3, that is, a telephone line.

By the way, an outgoing telephone number notification service (number display service (registered trademark)) is started by an operator such as NTT (registered trademark), and when subscribing to this service, the telephone number of the caller is transmitted to the destination communication device. Will be notified. However, since the external connection sequence in this service is different from the above-described normal connection sequence, a communication device corresponding to the external connection sequence must be prepared to use this service.

FIG. 6 shows a connection sequence in this service. This sequence includes a process of transmitting a calling telephone number and notification control information to a destination. Here, the notification control information is information that defines whether the outgoing telephone number is “notified” or “not notified”. The notification control information is usually specified by the sender, and in the case of NTT's Number Display Service (registered trademark), dialing "186" before dialing the telephone number dials "notification" and "184". Then, it is set to “not notified”.

[0010]

Recently, there has been an increasing demand for the use of this caller telephone number notification service in karaoke shops and the like. However, in order to meet this demand, the telephone line switching device needs to be compatible with the connection sequence of this service. Also, a function of relaying these information to the communication device D connected to the port is required so that the communication device D can obtain the calling telephone number and the notification control information.

In addition, the above-mentioned telephone line switching device has a problem that a caller is made to wait while monitoring the transmission of a port ID. In such a case, it is necessary to give sufficient consideration to prevent the caller from waiting for a longer time.

[0012] The present invention has been made in view of such circumstances, and when an incoming call is received, it is possible to smoothly select and connect to the device to be called by the caller. An object of the present invention is to provide a telephone line switching device corresponding to a service.

[0013]

According to a first aspect of the present invention, there is provided a telephone line switching apparatus compatible with an outgoing telephone number notification service. 1) to (6).

(1) It has an external line connection port and a plurality of internal line connection ports. One of the extension connection ports is a port dedicated to a telephone. Each extension connection port is identified by a unique port ID. (2) A predetermined connection sequence is executed with the caller who has arrived at the external line connection port, and at the same time, notification control information for notifying "notification" and "non-notification" of the transmitted telephone number and transmission telephone number are obtained. I do. (3) If the notification control information is “notification”, a connection sequence for enabling the caller to communicate with the telephone-only port is started. The connection sequence includes a process of transmitting the calling telephone number to a device connected to the telephone-only port. (4) If the notification control information is “non-notification”, it is monitored for a predetermined time whether a port ID for selecting an extension is sent to the external line connection port. (5) When the port ID has been sent, a connection sequence for connecting the source and the extension connection port designated by the port ID in a communicable manner is started. (6) If the port ID has not been sent, a connection sequence for connecting the caller and the telephone-dedicated port in a communicable manner is started. The connection sequence includes a process of transmitting the obtained calling telephone number to a device connected to the telephone-only port.

According to a second aspect of the present invention, there is provided a telephone line switching apparatus compatible with a calling telephone number notification service, which is specified by the following items (1) to (6). And

(1) It has an external line connection port and a plurality of internal line connection ports. One of the extension connection ports is a port dedicated to a telephone. Each extension connection port is identified by a unique port ID. (2) When there is an incoming call from a caller at the external line connection port, a connection sequence between the external line connection port and the telephone-only port is started, and “notification” and “non-transmission” of the calling telephone number exchanged in this connection sequence are performed. Notification control information for notifying "notification" and the calling telephone number are obtained. (3) If the notification control information is “notification”, the connection sequence is continued as it is. (4) If the notification control information is "non-notification", the communication device establishes a communication state with the caller by performing a connection sequence on behalf of the telephone-only port, and sets the port ID from the caller. Is monitored for a predetermined period of time. (5) When the port ID is sent, a connection sequence for connecting the transmission source and the extension connection port designated by the port ID so as to enable communication is started. (6) If the port ID has not been sent, a connection sequence for connecting the caller and the telephone-dedicated port in a communicable manner is started. This connection sequence includes a process of transmitting the obtained calling telephone number to a device connected to the telephone dedicated port.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail. In any of the following embodiments, the schematic configuration is the same as the above-described conventional configuration (FIG. 4), and it is assumed that the telephone line switching device is installed in a karaoke hall such as a karaoke shop. In any of the following embodiments, the host apparatus H always includes "non-notification" in the notification control information when calling the karaoke performance terminal.
Shall be set.

(Embodiment 1) FIG. 1 shows an operation sequence of the telephone line switching apparatus in this embodiment. In this figure, first, the exchange M inverts the polarity of the telephone line N and sends out a calling signal. The telephone line switching device closes the DC loop in response. When the DC loop is closed, switch M sends out the calling telephone number and notification control information in response. The telephone line switching device stores the transmitted telephone number and releases the DC loop. The exchange M sends a call signal again in response to this. The telephone line switching device closes the DC loop again (secondary response) in response to the call signal. When the DC loop is closed, the exchange M restores the polarity of the telephone line N (reversal), thereby allowing the exchange M and the telephone line switching device to communicate with each other.

Next, the central control unit 1 determines whether the notification control information is “notification” or “non-notification” by
Perform the following connection sequence.

When the notification control information is "non-notification" The telephone line switching apparatus waits for a port ID to be transmitted from the exchange M for a predetermined time (about 8 seconds) while maintaining this communication state. The following connection sequence is performed.

When the port ID is transmitted, the telephone line switching device inverts the polarity of the extension connection port 5b corresponding to the port ID and transmits a call signal. The karaoke performance terminal K connected to the extension connection port 5b closes the DC loop in response. In response to this, the telephone line switching device sets the extension connection port 5b to the outside connection port 3 where the polarity of the line is also reversed while in a talking state.
, The karaoke performance terminal K and the exchange M can communicate with each other.

On the other hand, if the port ID has not been transmitted, the telephone line switching device inverts the polarity of the telephone dedicated port 5a and transmits a call signal. The communication device D connected to this port closes the DC loop in response to this. In response to this, the telephone line switching device sends out the calling telephone number. The communication device D receives the calling telephone number and opens the DC loop. When the DC loop is released, the telephone line switching device sends a calling signal. In response to this, the communication device D closes the DC loop again (secondary response). And
In response to this, the telephone line switching device responds to the
a is switched to connect to the external line connection port 3 in which the polarity of the line is also reversed while in a call state, so that the communication device D
And the exchange M can communicate with each other.

When the notification control information is "notification" The telephone line switching device inverts the polarity of the telephone dedicated port 5a and transmits a calling signal. The communication device D connected to this port closes the DC loop in response to this. In response to this, the telephone line switching device sends out the calling telephone number. The communication device D receives the calling telephone number and opens the DC loop. When the DC loop is released, the telephone line switching device sends a calling signal. In response to this, the communication device D closes the DC loop again (secondary response). Then, the telephone line switching device responds to this by setting the telephone line dedicated port 5a to the external line connection port 3 where the line polarity is reversed in the talking state.
, The communication between the communication device D and the exchange M becomes possible.

(Embodiment 2) FIGS. 2 and 3 show an operation sequence of the telephone line switching apparatus in this embodiment. In these figures, when the exchange captures the telephone line N on the receiving side, the exchange inverts the polarity and transmits a calling signal. In response to this, the telephone line switching device executes a connection sequence between the exchange M and the communication device D. For example, the external line connection port 3 and the telephone-only port 5a may be switched to be connected and directly executed. In this connection sequence, the communication device D closes the DC loop in direct response to the calling signal. When the DC loop is closed, switch M sends outgoing telephone number and notification control information to communication device D in response. In response, the communication device D opens the DC loop. Here, the telephone line switching device monitors the outgoing calling telephone number and the notification control information, stores the outgoing calling telephone number, and sets "notification" and "non-notification" in the notification control information. The following two types of sequences are performed depending on which is set.

When the notification control information is "notification" (FIG. 2), the telephone line switching device continues to execute the connection sequence between the exchange M and the communication device D. When the exchange M inverts the polarity and sends out a call signal, the communication device D closes the DC loop in response. In response, the exchange M sends out the calling telephone number. The communication device D receives the transmitted calling telephone number and opens the DC loop. When the DC loop is released, switch M sends a calling signal. In response to this, the communication device D closes the DC loop again (secondary response). Then, in response to this, the exchange M reverses the polarity of the line, and the communication between the communication device D and the exchange M becomes possible.

When the notification control information is "non-notification" (FIG. 3), the telephone line switching device interrupts the connection sequence between the exchange M and the communication device D, and replaces itself with the communication device D. The connection sequence with the exchange M is continued. When the exchange M confirms that the DC loop has been opened and sends a call signal, the telephone line switching device closes the DC loop in response. The exchange M sends a call signal again in response to the communication device D closing the DC loop. The telephone line switching device closes the DC loop again (secondary response) in response to the calling signal. When the DC loop is closed, the exchange M restores the polarity of the telephone line N (reversal), whereby the exchange and the telephone line switching device can communicate with each other.

Next, the telephone line switching apparatus waits for a port ID to be transmitted from the exchange M for a predetermined time (about 8 seconds) while maintaining this communication state, and performs the following connection sequence.

Here, when the port ID is transmitted, the telephone line switching device inverts the polarity of the extension connection port 5b corresponding to the port ID and transmits the call signal. The karaoke performance terminal K connected to the extension connection port 5b closes the DC loop in response. In response to this, the telephone line switching device sets the extension connection port 5b to the outside connection port 3 where the polarity of the line is also reversed while in a talking state.
By switching to the connection, the karaoke performance terminal K and the exchange M can communicate with each other.

On the other hand, if the port ID has not been transmitted, the telephone line switching device inverts the polarity of the telephone dedicated port 5a and transmits a call signal. The communication device D connected to this port closes the DC loop in response to this. In response to this, the telephone line switching device sends out the calling telephone number. The communication device D receives the calling telephone number and opens the DC loop. When the DC loop is released, the telephone line switching device sends a calling signal. In response to this, the communication device D closes the DC loop again (secondary response). And
In response to this, the telephone line switching device responds to the
By switching “a” to be connected to the external line connection port 3 in which the line polarity is also reversed while in a call state, the communication between the communication device D and the exchange M becomes possible.

[0030]

In the telephone line switching device according to the first aspect, when the notification control information is "non-notification", it is determined whether or not the call is from the host device. Therefore, while monitoring for the port ID to be sent,
The caller will have to wait for the same amount of time as before.
However, in the case of "notification", a call signal is immediately output to the telephone-only port, so that the waiting time of the caller is significantly reduced as compared with the conventional case.

According to the second aspect of the present invention, when a call signal is transmitted from the exchange, the telephone line switching device connects the telephone with the exchange for the time being, and the telephone responds directly to the call signal. Therefore, particularly, when “notification” is set in the notification control information, the waiting time of the caller is almost eliminated.

As described above, the telephone line switching apparatus corresponding to the outgoing telephone number notification service according to the present invention can smoothly select and connect a device to be called by the caller when there is an incoming call. .

[Brief description of the drawings]

FIG. 1 is a diagram showing an operation sequence of a telephone line connection device according to one embodiment of the present invention.

FIG. 2 is a diagram showing an operation sequence of the telephone line connection device according to one embodiment of the present invention.

FIG. 3 is a diagram showing an operation sequence of the telephone line connection device according to one embodiment of the present invention.

FIG. 4 is a diagram showing a schematic configuration of a telephone line connection device.

FIG. 5 is a diagram showing an operation sequence of a conventional telephone line connection device.

FIG. 6 is a diagram showing a connection sequence in a calling telephone number notification service.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Central control part 3 External connection port 5 Extension connection port 5a Telephone exclusive port 5b Extension connection port other than telephone exclusive use port 9 External line control monitoring part 11 Internal line control monitoring part 13 Line switching part D Communication equipment H Host device K Karaoke performance terminal M Exchange N telephone line

Claims (2)

[Claims] 1. A telephone line switching device corresponding to a calling telephone number notification service, which is specified by the following items (1) to (6). (1) It has an external line connection port and a plurality of internal line connection ports. One of the extension connection ports is a port dedicated to a telephone. Each extension connection port is identified by a unique port ID. (2) A predetermined connection sequence is executed with the caller who has arrived at the external line connection port, and the notification control information and the caller phone number for notifying "notify" or "not notify" of the caller phone number transmitted are acquired. I do. (3) If the notification control information is “notification”, a connection sequence for enabling the caller to communicate with the telephone-only port is started. The connection sequence includes a process of transmitting the calling telephone number to a device connected to the telephone-only port. (4) If the notification control information is “non-notification”, it is monitored for a predetermined time whether a port ID for selecting an extension is sent to the external line connection port. (5) When the port ID has been sent, a connection sequence for connecting the source and the extension connection port designated by the port ID in a communicable manner is started. (6) If the port ID has not been sent, a connection sequence for connecting the caller and the telephone-dedicated port in a communicable manner is started. The connection sequence includes a process of transmitting the obtained calling telephone number to a device connected to the telephone-only port. 2. A telephone line switching device corresponding to a calling telephone number notification service, which is specified by the following items (1) to (6). (1) It has an external line connection port and a plurality of internal line connection ports. One of the extension connection ports is a port dedicated to a telephone. Each extension connection port is identified by a unique port ID. (2) When there is an incoming call from a caller at the external line connection port, a connection sequence between the external line connection port and the telephone-only port is started, and “notification” and “non-transmission” of the calling telephone number exchanged in this connection sequence are performed. Notification control information for notifying "notification" and the calling telephone number are obtained. (3) If the notification control information is “notification”, the connection sequence is continued as it is. (4) If the notification control information is "non-notification", the communication device establishes a communication state with the caller by performing a connection sequence on behalf of the telephone-only port, and sets the port ID from the caller. Is monitored for a predetermined period of time. (5) When the port ID is sent, a connection sequence for connecting the transmission source and the extension connection port designated by the port ID so as to enable communication is started. (6) If the port ID has not been sent, a connection sequence for connecting the caller and the telephone-dedicated port in a communicable manner is started. This connection sequence includes a process of transmitting the obtained calling telephone number to a device connected to the telephone dedicated port.