JPH0430650A - telephone switching equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a telephone switching device in which a modem is shared by a plurality of extension communication terminals.

[Prior Art] Conventionally, telephone switching equipment has been known that can accommodate multiple outside lines, connect multiple communication terminals as extensions, and share a modem with each extension communication terminal. .

[Means for Solving the Problem] By the way, the types of modulation and demodulation methods used in data communication are increasing year by year, and it is expected that communication terminals using different communication methods will coexist.

Therefore, it is necessary to prepare a modem according to the type of communication method (communication attribute), but in devices that share a common modem as in the conventional example above, even if it is possible to switch to multiple attributes. Even if a modem is installed, the attributes of the modem can be switched depending on the attributes of the incoming communication,
It is difficult to accommodate all communication attributes.

If communication is performed using a method that cannot be supported by the shared modem, the modem will not be able to operate properly.
This may cause confusion for users.

The present invention provides a telephone switching device that can prompt the user to take appropriate measures and avoid unnecessary confusion when a communication terminal that does not correspond to the attributes of a modem is used by mistake. With the goal.

[Means for Solving the Problems] The present invention provides a modem that is capable of accommodating a plurality of external lines according to their communication attributes, is connectable to a plurality of communication terminals as extensions, and is shared by each extension communication terminal. The telephone exchange apparatus is characterized by having a means for notifying the extension side when an attribute of the call is different from an attribute of the modem when receiving a call from an outside line.

[Operation J] In the present invention, if the attributes of the communication received from an outside line are not compatible with the shared modem, the user is notified of this fact through the extension terminal, so that the user can confirm that the incoming data is not transferred to the modem. For example, you can inform the other party to change their communication device and communicate with them.
Alternatively, appropriate measures such as switching the modem settings can be taken, and confusion caused by unauthorized reception can be prevented.

[Example] FIG. 1 is a block diagram showing an embodiment of the present invention.

This telephone exchange device 1 includes an outside line interface 3 that accommodates a plurality of outside lines 2 and monitors the status of each outside line 2, a communication path switch 4 that exchanges and connects calls, and a control device that manages control operations of the exchange device 1. 5 and.

ROM that stores control information that determines the operation of the control device 5
6, and as a work area for the control device 6, an outside line, an extension line,
A RAM 7 for storing modem status information, communication attributes, operational data, etc.; a sound source information memory 8 for ring tones, hold tones, etc.; a modem interface 9 for sharing the modem 12 with each extension; It has an interface 10 and an extension interface 11 that accommodates a dedicated telephone different from a general telephone. An extension telephone 4113 with a display device and an extension telephone 14 accommodating a data communication terminal 15 are connected to the extension interface 11 .

Furthermore, the modem 12 is compatible with a plurality of communication attributes, and the attributes can be changed using a changeover switch.

FIG. 2 is a flowchart showing the operation of the apparatus of this embodiment when a call is received.

The premise is that the user of this system is able to set the necessary communication attributes for each outside line, and when a call is received from a certain outside line, it is assumed that it is a data communication that supports the settings.

First, the outside line interface 3 detects an incoming call from an outside line and notifies the control device 5 (Sl).

Next, determine whether there is a data communication terminal in this system that matches the communication attributes of the external line that received the first call by referring to the communication attribute data in RAM 752), and if no matching terminal is registered, Since data communication is not possible, a disconnection process is performed (S3).

Further, if a data communication terminal with matching attributes is registered, it is determined whether the terminal with the attributes is currently available for use (S4).

Then, if it is unusable, perform a disconnection process (S3),
Note that instead of disconnecting immediately, the connection may be put on hold for a certain period of time to wait for the data communication terminal to become available.

When the data communication terminal is usable, it is determined whether its communication attributes match those of the modem 12 at the present time (S5), and if so, one line is connected (SS).

If they do not match, a message to that effect is displayed on the extension telephone 4113 (S7).In addition, instead of or in addition to displaying the attribute mismatch, an unusual ringtone or the like is sounded as an alarm sound. You may let them.

As a result, the user recognizes the mismatch in communication attributes and takes measures to change the communication attributes of the modem 12, for example, and data communication becomes possible.

[Effects of the Invention] According to the present invention, when the attributes of a communication received from an outside line are not compatible with the modem, this fact is notified to the user through the extension terminal, thereby prompting the user to take appropriate measures. This can avoid unnecessary confusion.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. FIG. 2 is a flowchart showing the operation of the apparatus of the embodiment when a call is received. l...telephone switching equipment, ? . . . Outside line, 5. Control device, 8. Sound source information memory. 12...Modem, 13.14...Extension telephone, 15...Data communication terminal. Patent applicant: Canon Co., Ltd. Agent: New Figure 2 Yokubo

Claims (1)

[Scope of Claims] A telephone switching device that is capable of accommodating a plurality of outside lines according to their communication attributes, is capable of connecting a plurality of communication terminals as extensions, and has a modem that is shared by each extension communication terminal. A telephone switching device characterized in that, when a call is received from an outside line, if the attributes of the call differ from the attributes of the modem, the telephone exchange device has means for notifying the extension side of this fact.