JPH07264297A - Telephone exchange - Google Patents

Abstract

PURPOSE:To provide a telephone exchange making connection to an important caller for each extension when calls arrive simultaneously to plural external lines. CONSTITUTION:The exchange is provided with a caller number telephone number decoding means 2 decoding a telephone number of a caller received from each external line, a caller telephone number storage means 3 storing the decoded telephone number, an extension dependent priority storage means 4 storing the priority of the caller telephone number for each extension, and connection external line deciding means 5 deciding a connected external line according to the priority of the telephone number of the caller for a registered extension in advance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone exchange which connects to a more important caller when an extension telephone is off-hook when a call is received from a plurality of outside lines.

[0002]

2. Description of the Related Art Conventionally, telephone exchanges have been used which can give priority to outside lines. High-priority outside line numbers should only be given to important callers.

A conventional telephone exchange will be described with reference to the drawings. FIG. 5 is an operation flowchart for an example in which the extension telephone set A is set in advance and the extension telephones A and B are received in this order, and then the extension telephone set A is off-hooked. However, in the extension telephone A, the outside lines Z, Y, X ...
It is assumed that the priority order is set in the order of. FIG. 6 is a diagram showing the contents of an incoming line storage means of a conventional telephone exchange.

When an incoming call is received from the outside line X (step 5-1),
The bit indicating the outside line X in the incoming outside line storage means is turned on (step 5-2). Then, when an incoming call is received from the outside line Y (step 5-3), the bit indicating the outside line Y in the incoming outside line storage means is turned on (step 5-4). When the extension telephone set A is hooked off (step 5-5), the presence or absence of an incoming call from the external line Z having the priority 1 is first judged by turning on or off the bit indicating the external line Z in the incoming external line storage means (step 5-6). . Since there is no incoming call from the outside line Z, the presence / absence of an incoming call from the outside line Y having the priority 2 is judged by turning on or off the bit indicating the outside line Y of the incoming outside line storage means (step 5-7). Since the call is received from the outside line Y, the outside line Y and the extension telephone A are connected (step 5-8).

[0005]

However, in the conventional function, the telephone numbers of callers cannot be prioritized, and the caller who is not usually important is given only the low-priority outside line telephone number. However, there is a problem in that the caller who is not important cannot use the outside line effectively even if the outside line of the telephone number that is not taught is available.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a telephone exchange capable of connecting to a caller, which is more important for each extension, when there are simultaneous incoming calls to a plurality of outside lines. .

[0007]

To achieve this object, the present invention provides a means for decoding the telephone number of a caller input from an external line, a means for storing the decoded telephone number, and each extension. To store the priority of the caller's telephone number, and when the extension telephone goes off-hook when receiving an incoming call from multiple external lines, determines the external line to be connected according to the priority of the caller's telephone number for the extension registered in advance. The means to do was provided.

[0008]

According to the present invention having the above-mentioned structure, when the telephone exchange deciphers and stores the caller's telephone number when an incoming call is received from a plurality of external lines, and the extension telephone is off-hooked, the extension registered in advance is stored in the extension. Connect to the outside line of the higher priority caller.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a telephone exchange 1 according to an embodiment of the present invention. In FIG. 1, 10, 11,
Reference numerals 12 and 13 are external lines of the telephone exchange 1 of the present embodiment, and reference numerals 14, 15 and 16 are extension telephones connected to the telephone exchange 1. Hereinafter, 10 is an outside line Z, 11 is an outside line Y, 1
Let 2 be an outside line X and 13 be an outside line W. Further, 14 is an extension telephone A, 15 is an extension telephone B, and 16 is an extension telephone C.

Reference numeral 1 is a telephone exchange of this embodiment. In the telephone exchange 1, 7 is an extension interface means for controlling an interface with an extension, 6 is an outside trunk interface means for controlling an interface with an outside line, and 9 is a communication path means for connecting or disconnecting an extension communication line and an extension communication path. Is.

The control means 8 analyzes the information sent through the extension line interface means 7 and the outside line trunk interface means 6 and controls each part in the telephone exchange 1. Reference numeral 2 is a caller telephone number decoding means for decoding the telephone number of the caller receiving an incoming call to an outside line by using a caller ID.
Reference numeral 3 is caller telephone number storage means for storing the telephone number decoded by the caller telephone number decoding means 2, and reference numeral 4 is extension priority order storage means for storing the priority order of the caller's telephone number for each extension. . Further, reference numeral 5 is a connected outside line determining means for judging, when an extension telephone goes off-hook when receiving an incoming call from a plurality of outside lines, the outside line to which the caller having the highest priority for that extension is receiving.

With reference to FIGS. 2 and 3, the operation of the present embodiment configured as described above will be described with reference to FIG. 4 in the case where the extension telephone set A is off-hook after the external line Z, the outside line Y, and the outside line W are sequentially received. The telephone numbers of the caller telephone number storage means 3 and the extension-by-extension priority storage means 4 will be described as an example.

Telephone numbers of important callers for each extension are stored in the extension priority storage means 4. In FIG. 4, the extension 1st caller telephone number in the extension telephone A is 11223344.
5566 and the second priority calling phone number is 98765432
Will be 10.

FIG. 2 shows that after the caller telephone number priority for each extension is set in the extension priority storage means 4, the extension Z,
8 is an operation flowchart in an example in which the extension telephone set A is off-hook after receiving calls in order from Y and W.

For example, when the caller with the telephone number 0123456789 receives an incoming call from the outside line Z (step 2-1), the calling party telephone number decoding means 2 performs the calling party telephone number decoding process based on the caller ID sent from the outside line Z. It is executed (step 2-2). Next, in the area of the outside line Z of the caller telephone number storage means 3, the telephone number (0123456789 in this example) of the caller receiving the incoming call of the outside line Z obtained by the decoding processing is stored (step 2-3).

Further, for example, when the caller with the telephone number 9876543210 receives an incoming call from the outside line Y (step 2-4), similarly, the caller telephone number decoding means 2 executes the caller telephone number decoding process for the outside line Y (step 2). -5), The telephone number of the caller of the outside line Y (9876543210 in this example) is stored in the area of the outside line Y of the caller telephone number storage means 3 (step 2-
6).

Further, for example, when the caller with the telephone number 555444333 receives an incoming call from the outside line W (step 2-7), similarly, the caller telephone number decoding means 2 executes the telephone number decoding process of the caller with the outside line W (( Steps 2-8). Then, the telephone number of the caller of the outside line W (555444333 in this example) is stored in the outside line W area of the caller telephone number storage means 3 (step 2-9).

When the extension telephone set A is hooked off in this state (step 2-10), the extension telephone set A is stored in the area of the caller telephone number storage means 3 for the outside lines Z, Y, W and the extension telephone set A of the extension-by-extension priority storage means 4. Based on the stored information, the extension of the caller having the highest priority for the extension telephone set A is determined (step 2-11). The extension telephone A and the determined outside line are connected (step 2-12), and the caller telephone number of the connected outside line is deleted from the caller telephone number storage means 3.

FIG. 3 shows in detail the procedure for determining the outside line (step 2-11). That is, FIG. 3 shows caller telephone number storage means 3.
Areas of outside lines Z, Y, W and extension priority storage means 4
6 is an operation flowchart for determining an outside line of a caller having the highest priority for the extension telephone A from the area of the extension A of FIG. Here, as an example, it is assumed that the caller telephone number storage means 3 and the extension priority order storage means 4 are registered as shown in FIG. 4, and the following description will be given along this example.

As to the outside line that received the call, the telephone number of the calling party is stored in the calling party telephone number storage means 3 for each outside line as described above.

The caller telephone number z of the outside line Z: 0123456789, the caller telephone number y of the outside line Y: 9876543210, and the caller telephone number w of the outside line W: 55544433 in the caller telephone number storage means 3.
Read 3 (step 3-1).

The telephone number a1: 112233445566 of priority 1 of the extension telephone A is read from the extension priority storage means 4 (step 3-2). First, the caller telephone number z of the outside line Z: 0123456789 and the telephone number a1: 112 of this priority 1
Compare with 233445566 (step 3-3). In this example, they do not match, so this time the caller telephone number of the outside line Y is y: 987654.
3210 is compared with the telephone number a1: 112233445566 of priority 1 (step 3-5). Since there is no match in this example, the telephone number w: 555444333 of the outside line W and the telephone number a1: 112233445566 of priority 1 are compared (step 3).
-7). In this example, they do not match.

In this way, when the telephone number a1 of priority 1 of the extension telephone A does not match the telephone number of the calling party of any external line, the telephone number of priority 2 of the same extension telephone A is compared next. To do.

In the comparison of the telephone number of priority 2 of the extension telephone A, first, the telephone number a2: 9876543210 of priority 2 of the extension telephone A is read from the extension priority storage means 4 (step 3-9). As with the previous time, first, the outside line Z
Phone number z: 0123456789 and phone number a with priority 2
2: Compare with 9876543210 (step 3-10). Since they do not match in this example, the caller telephone number y: 98 of the outside line Y is next.
765436210 is compared with the telephone number a2: 9876543210 of priority 2 (step 3-12). Since the two match, the extension telephone A and the outside telephone line Y are connected (step 3-1).
3).

If there is no matching caller telephone number in the comparison of the telephone number of priority 2 of the extension telephone A, then the telephone number of priority 3 of the extension telephone A is compared.

If there is no matching telephone number up to the final telephone number of the extension telephone set A, that is, the telephone number of the caller arriving at any outside line is the area of the extension telephone set A of the extension-by-extension priority storage means 4. If it is not registered in, it is possible to connect to this outside line Z by setting in advance such as connecting to the outside line (Z here) that first arrived.

[0028]

As described above, according to the present invention, means for decoding the telephone number of the caller input from the outside line, means for storing the decoded telephone number, and the telephone number of the caller for each extension. By providing a means to store the priority and a means to determine the outside line to be connected according to the priority of the caller's telephone number for the extension when the extension telephone goes off-hook when receiving an incoming call from multiple outside lines, When an incoming call occurs, it is possible to connect to a caller who is more important for each extension. It also reduces the likelihood of transfer. All outside line telephone numbers can be given to even less important callers, and multiple outside lines can be used efficiently.

[Brief description of drawings]

FIG. 1 is a block diagram of a telephone exchange according to an embodiment of the present invention.

FIG. 2 is an operation flowchart when an incoming call is received from a plurality of outside lines of the telephone exchange according to the embodiment.

FIG. 3 is an operation flowchart for determining a connection outside line of the telephone exchange in the embodiment.

FIG. 4 is an explanatory view showing contents of a storage means of the telephone exchange in the embodiment.

FIG. 5 is an operation flowchart of a conventional telephone exchange.

FIG. 6 is an explanatory view showing the contents of an incoming line storage means of a conventional telephone exchange.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Telephone exchange 2 Caller telephone number decoding means 3 Caller telephone number storage means 4 Extension priority order storage means 5 Connection outside line determination means 6 External line trunk interface means 7 Extension line interface means 8 Control means 9 Call path means 10 External line Z 11 External line Y 12 outside line X 13 outside line W 14 extension phone A 15 extension phone B 16 extension phone C

Claims (2)

[Claims] 1. A call path means for connecting or disconnecting an extension call line and an outside call path, a means for decoding a caller's telephone number inputted from the outside line, and the decoded telephone number is stored. Means, means for storing the priority of the caller's telephone number for each extension, and when the extension telephone goes off-hook when receiving an incoming call from multiple external lines, the extension is given to the external line receiving the telephone number with a higher priority for that extension. A telephone exchange characterized by being configured to connect. 2. An extension interface means for controlling an interface with an extension, an outside trunk interface means for controlling an interface with an outside line, and a communication path means for connecting or disconnecting an extension communication line and an outside communication path. Control means for controlling each part in the telephone exchange by analyzing the information sent through the extension line interface means and the outside line trunk interface means, a means for decoding the telephone number of the caller inputted from the outside line, and the decoding thereof. To store the telephone number of the caller, the means to store the priority of the caller's telephone number for each extension, and the telephone number of the caller for the extension registered in advance when the extension telephone goes off-hook when receiving an incoming call from multiple external lines. And a means for determining the priority of the Telephone exchange, characterized in that it is configured to.