JPH0338945A - Isdn telephone set - Google Patents

Abstract

PURPOSE:To specify a called telephone set by providing a reception means receiving incoming information, a detection means detecting subaddress information, a registration means registering relevant number information and a ring means, and ringing the means in a call tone corresponding to a subaddress included in the incoming information. CONSTITUTION:Upon the receipt of an incoming signal from an ISDN line 2, a telephone set 1 detects a subaddress from a data in an incoming signal. Then a number address 30 corresponding to the subaddress is retrieved from a registration table and when the user registers the number address 30, a relevant call tone 31 is outputted to a speaker 16 for sounding. That is, when the number address corresponding to the subaddress is not registered in a registration table, the telephone set 1 does not ring, and the telephone set rings in a call tone corresponding to the registered number address. Thus, the called telephone set is specified.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to telephones, and particularly to digital telephones connected to an ISDN network.

[Prior art] Unlike the conventional public telephone network, the ISDN network
Up to eight telephones can be connected to the basic access interface.

Even though each telephone has the same line number, a call can be made to the telephone designated by the subaddress included in the ISDN call information.

[Problem to be Solved by the Invention] However, in the above conventional example, even if the subaddress specifies the telephone to receive the call, if each telephone is placed relatively close to each other, the telephones ring with the same ring tone. However, the drawback was that it was not possible to tell which telephone the call was received on.

The present invention was made to solve the above problems, and
It is an object of the present invention to provide an ISDN telephone that can identify a called telephone by making it ring with a ringing tone corresponding to a subaddress included in called information.

[Means for Solving the Problems] In order to achieve the above object, the ISDN telephone of the present invention has the following configuration. That is, in a telephone connected to an ISDN, a receiving means for receiving incoming call information including subaddress information specifying a called telephone; a detecting means for detecting subaddress information from the incoming call information in the receiving means; The present invention includes a registration means for registering number information corresponding to the subaddress information detected by the means, and a ringing means for making the telephone ring with a corresponding ring tone when the number information is registered by the registration means.

[Operation] In the above configuration, incoming call information including subaddress information specifying a called telephone is received, and subaddress information is detected from the incoming call information. If number information corresponding to that subaddress is registered, the telephone operates to ring with a ring tone corresponding to that number information.

[Embodiment] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

<Description of Configuration (FIG. 1)> FIG. 1 is a block diagram showing the configuration of an ISDN telephone 1 in an embodiment. In the figure, l is I in this example.
The SDN telephone 2 is an ISDN line. Reference numeral 10 denotes a CPU that manages the overall control, and 11 an R that stores control procedures (programs) and control data for the CPU to be described later.
OM, 12 is a RAM that includes a work area used by the CPU 10 when executing processing according to the above-described control procedure, various tables to be described later, and the like. An ISDN interface 13 is connected to the ISDN line 2 and controls connection and release of calls in accordance with the ISDN communication protocol. Also IS
The DN interface 13 outputs a ringing tone to the speaker 16 and performs data conversion between the B channel audio data and the handset 17, as will be described later. 14 is a key interface that detects pressing of various function keys 18 and dial keys 19 including a registration key to be described later. 15
is a display interface, which outputs a dial monitor display at the time of registration, various status displays of the telephone set 1, etc., which will be described later, to the LCD display 20.

<Description of Registration Operation (FIGS. 2 and 3)> When the telephone 1 having the above configuration receives an incoming call signal from the ISDN line 2, it detects a subaddress from the data of the incoming call signal. And the number address 3 corresponding to that sub-address
0 from the registration table shown in FIG. 2, and if the number address 30 has been registered in advance by the user, the corresponding ringing tone 31 is output to the speaker 16 to ring an incoming call.

In other words, in this embodiment, if the number address corresponding to the subaddress is not registered in the above registration table,
The telephone 1 can be made to ring with a ring tone corresponding to the registered number address without ringing.

Here, the process of registering the above-mentioned number address in the registration table will be explained below according to the flowchart shown in FIG.

First, the key 18 pressed from the key interface 14
．． If you enter the key code corresponding to 19, step S
Proceed to step 1 to determine whether the key is a registered key. As a result, if the key code does not correspond to the registered key, the process corresponding to the key is executed. However, if it is a registration key, the process advances to step S2, and a registration mode message is output to the LCD display 20 via the display interface 15. Next, the process proceeds to step S3,
It waits for the dial key 19 corresponding to the number address to be registered to be pressed, and when the dial key 19 is pressed, the process advances to step S4, and the input dial of the dial key 19 is displayed on the monitor.

Then, when the input process in steps S3 and S4 is repeated and the function key 18 indicating the end of registration is pressed, the process advances from step S5 to step S6, and the input number address is transferred to the number address 30 of the registration table described above. Register.

For example, if the subaddress of the telephone 1 is "5" and the number address to be registered is °°○△口°゛, it will be registered as shown in FIG.

Note that the user may independently set the correspondence between the sub-address and the number address. Further, in this embodiment, the ring tone is set in advance, but it may be set during the above-mentioned registration operation.

When the above-mentioned registration is completed, the process proceeds to step S7, the display is returned, and the process ends.

<Description of Control Procedure (FIG. 4)> Next, the control procedure in this embodiment will be explained below according to the flowchart shown in FIG.

As mentioned above, when an incoming call signal is received from the TSDN line 2 via the ISDN interface 13, step S
The process advances to 1O, and the subaddress is detected from the incoming call signal. Then, the process proceeds to step S1l, and the number address corresponding to the detected sub-address is searched from the above-mentioned registration table. In the next step S12, the search result is determined, and if the number address is not registered in the registration table, the process ends. However, if it is registered, the process advances to step S13, and the ISDN
Instruct the interface 13. After that, step S1
4, when a response due to off-hook of the handset 17 is detected via the ISDN interface 13,
Performs normal response processing and transitions to talking state.

As explained above, according to this embodiment, when the same telephone number is attached to multiple telephones, a number address is registered in each telephone, and the number is associated with a subaddress obtained by the ISDN service. By providing this function, a specific telephone can be selected from among multiple telephones connected to the same telephone number, which has the effect of increasing the accuracy of telephone responses.

[Effects of the Invention] As described above, according to the present invention, a called telephone can be identified by making it ring with a ring tone corresponding to a subaddress included in the called information.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the configuration of an ISDN telephone in the embodiment, Fig. 2 is a diagram showing the structure of the registration table in the embodiment, Fig. 3 is a flowchart showing the number address registration process in the embodiment, and Fig. 4 is a diagram showing the configuration of the registration table in the embodiment. It is a flowchart which shows incoming call processing in an example. In the figure, 1...ISDN telephone, 2...ISDN line, 10...CPU, 11...ROM, 12...R
AM, 13...ISDN interface, 14...
key interface, 15... display interface,
16...Speaker, 17...Handset, 18.
...Function key 19...Dial key, 20...L
This is a CD display.

Claims (1)

[Scope of Claims] In a telephone connected to an ISDN, a receiving means for receiving called information including sub-address information specifying a called telephone, and a detecting means for detecting sub-address information from the called information in the receiving means. and a registration means for registering number information corresponding to the subaddress information detected by the detection means, and a ringing means for ringing the telephone with a corresponding ring tone when the number information is registered by the registration means. An ISDN telephone featuring: