JPH0620213B2 - Phone number registration method - Google Patents

Description

DETAILED DESCRIPTION [Overview] When registering a called subscriber number corresponding to a subscriber in an electronic exchange system, the number of digits of the telephone number of the called subscriber to be registered is stored as a registered telephone number. If the allocated number of digits in the area is exceeded, the telephone number of the called subscriber is stored in the auxiliary memory, and a flag by a code not used for the telephone number in the area and the called subscriber in the auxiliary memory are stored. The link information for accessing the person's telephone number was stored.

[Industrial application field]

The present invention, when registering a telephone number of a called party as a subscriber service in an electronic exchange system, calls when the number of digits of the telephone number of the called party to be registered exceeds a preset number of digits. Number registration method.

[Conventional technology]

FIG. 3 shows a configuration of an electronic exchange system to which the present invention is applied. In the figure, 1 is a subscriber, 2 is a line circuit, 3 is a communication network, 4 is a trunk connected to a trunk line, and 5 is a trunk. The common control device 6 is a subscriber information storage device.

Various information such as various programs and data necessary for exchange and subscriber services are registered in the subscriber information storage device 6 in advance, and the common control device 5 is used when the subscriber 1 makes a call or receives a call. The information necessary for making an exchange connection is read from the subscriber information storage device 6, and the required connection is made in the exchange network 13 based on this information.

In the electronic exchange system as described above, the telephone number of the called subscriber registered by each subscriber for the subscriber service is registered in the subscriber information storage device 6, as shown in FIG. Is the telephone number assigned to the called party is 3
It shows the stored contents of subscriber information in the conventional subscriber information storage device 6 which is stored as one word consisting of two bits.

To register the called subscriber telephone number in the subscriber information storage device 6, a subscriber data block 8 is provided for each renewed subscriber in the subscriber data area 7 of the storage device 6, and the subscriber data block 8 The telephone number of the called subscriber designated by the subscriber of the block is registered in the registered telephone number storage area 9. If the telephone number has up to 8 digits, each digit can be stored by the BCD code. It can be stored as it is with 4 bits = 32 bits.

In the illustrated example, a compressed telephone number is used to store a 9-digit telephone number in 32 bits forming one word. For example, as shown in FIG. 4, a 2-digit area code is used. A 9-digit subscriber telephone number "X" consisting of a 3-digit office code and a 4-digit directory code
₉ X ₆ X ₇ X ₆ X ₅ X ₄ X ₃ X ₂ X ₁ ", the most significant digit X ₉ is a number from 0 to 9 or one of * or # 12
Since it is one of the streets and the 8 digits below it are any of the numbers 0 to 9, if BCD is used, 9 digits x 4 bits = 36 bits are required, so in the above 1 word storage area It cannot be stored as it is.

Therefore, as shown in FIG. 5, the most significant digit X ₉ is assigned a single 4 bits, and each digit of X _{8 to} X ₁ is made up of 2 digits, and the numeric value 00 to 99 of each digit is set. It is expressed by a 7-bit hexadecimal number, and the above 9
As a compressed telephone number that can store a digit telephone number,
This is registered in the registered telephone number storage area 9 as shown in FIG.

[Problems to be solved by the invention]

As described above, the subscriber telephone number is stored in the subscriber information storage device 6
In order to fit within 1 word, if the number of digits exceeds a certain number even if the compressed telephone number or the like is devised as described above, the absolute number of bits is insufficient and registration with one word becomes impossible.

In the electronic exchange system, due to the increase in the number of subscribers and the improvement of service contents, the subscriber service becomes impossible with the number of digits adopted so far, and the subscriber telephone number with the number of digits larger than that has been used. It may be necessary to adopt it, and in such a case, it becomes impossible to store a telephone number with a new number of digits in a predetermined storage area such as one word as described above, so some measure is required. Becomes

The simplest method is to employ a storage device that can handle a sufficient number of bits as one word to store a new number of telephone numbers, but in this case, the processing system of the switching system itself changes. Therefore, the design of the entire electronic exchange system including software has to be changed. As another method, for example, two words are assigned as a storage area for a telephone number, and one telephone number is provided over these two words. However, in this case, there arises a problem that the utilization efficiency of the memory is significantly reduced.

The present invention has been invented based on the above circumstances, and provides a telephone number registration method capable of increasing the number of digits of a telephone number to be registered without affecting the existing registered telephone number storage area. is there.

[Means for solving problems]

FIG. 1 shows the principle of the present invention. The called subscriber telephone number is stored in the registered telephone number storage area 9 of the subscriber data block 8 set in the subscriber information storage device 6 and assigned to each subscriber. In the electronic exchange system for registering, if the number of digits of the telephone number of the called subscriber to be registered exceeds the number of digits stored in the registered telephone number storage area, the telephone number of the called subscriber is stored in the auxiliary memory 10. stores, wherein the registration telephone number storage area 9 _1, and the ring information R for accessing the called party telephone number stored in the auxiliary memory and flag F consisting of codes not used as a telephone number To store.

Note that the registration telephone number storage area 9 ₀ is illustrated as a telephone number of conventional as well as the called subscriber are stored.

[Work]

8 words can be registered in 1 word by the conventional method.
For the telephone number of digits or 9 digits of the called subscriber is registered in the registration telephone number storage area 9 ₀ as in the prior art as subscriber data area 7 by using a compression phone number as described above.

In the case of a telephone number whose number of digits increases and cannot be stored depending on the number of digits stored in the predetermined registered telephone number storage area, this telephone number is stored in the auxiliary memory 10, and this telephone number should originally be stored. In the registered telephone number storage area 9 of the personal data block 8, the telephone number is stored in the auxiliary memory 1
The flag F indicating that the telephone number is stored in 0 and the link information necessary for reading out the telephone number such as the address where the telephone number is stored in the auxiliary memory are stored.

When the subscriber calls and calls the registered called subscriber, the common control unit (FIG. 3) of the electronic exchange accesses the subscriber data block 8 and the common control unit stores the registered telephone number. The telephone number of the called subscriber to be read by the flag F read from the area 9 is stored in the auxiliary memory 10.
Identify that they are stored in. Then, the link information R read out at the same time is used to access the address in the auxiliary memory 10 where the telephone number is stored to read out the required telephone number of the called subscriber.

As described above, according to the present invention, the telephone number of the called subscriber that can be stored in the registered telephone number storage area as is is also the telephone number of the called subscriber whose number cannot be stored in the registered telephone number storage area. Since it can coexist with, it can be applied even when the number of digits of only the telephone numbers of some called subscribers increases.

In addition, the telephone number of the called subscriber stored in the auxiliary memory is limited only by the number of digits set in the auxiliary memory, and the number of digits assigned to the registered telephone number storage area of the subscriber information storage device. Is defined independently, the number of digits of the called subscriber's telephone number to be registered can be increased if necessary.

Further, the code format of the telephone number stored in the auxiliary memory may be different from the code format of the telephone number stored in the registered telephone number storage area.

The auxiliary memory may be set by dividing the memory area of the subscriber information storage device 6 similarly to the subscriber data block, or may be provided with an independent dedicated memory.

〔Example〕

FIG. 2 shows an embodiment in which the subscriber data area 7 and the auxiliary memory 10 are provided in a partial area of the subscriber information storage device 6 according to the present invention. A subscriber data block 8 is provided for each.

Registration of subscriber data block 8 ₀ telephone number storage area 9
_{In 0} , the 9-digit telephone number of the called subscriber is registered as the compressed telephone number described above, and the most significant digit X ₉ is # 0 to # 3 bits and the following 8 digits X ₈ .... X ₁ is divided into two digits and is represented by 7-bit data representing a numerical value of 00 to 99, # 4 to # 10, # 11 to # 17, # 18 to.
The fact that the data is stored in bits # 24 and # 25 to # 31 is the same as the conventional one.

To register the illustrated 9 or more digits of the telephone number as a 11-digit, in this example, as shown in registered telephone number storage area 9 _1, should accumulate the highest digit X9 above the # 0 to # 3 4 bits are used as the storage position of the flag F. That is, 12 types of numbers 0 to 3 and symbols * and # are used as the highest digit X ₉ of the telephone number, and these can be represented by 4 bits assigned to the highest digit 16 It can be expressed as a decimal number from "0" to "B", and since it is not necessary to use the four numbers "C" to "F", for example, "E"("1110") is called to the auxiliary memory. It is used as a flag indicating that the numbers are accumulated.

28 bits of # 4 to # 31 following this most significant digit are used as the storage position of the link information R, and the telephone number of the called subscriber is stored in the storage position of the auxiliary memory area 10 designated by this link information. Accumulate. In this Figure 2,
The telephone number stored in the auxiliary memory is shown as 11 digits, and the number is stored over the storage area of 2 words.

If the telephone number calling subscriber that the subscriber data blocks ₈₁ are allocated calls the called subscriber is registered as described above, the common control device (Fig. 3 5)
Accesses the subscriber data block 8 ₁ assigned to the subscriber, and uses # 0 in the registered telephone number storage area 9 ₁ .
By reading "E" from the 4 bits of # 3 to # 3, it is identified that the telephone number of the called subscriber is stored in the auxiliary memory area 10 and the data of the bits of # 1 to # 31 is linked information. Interpret as R, the address thus obtained is used to access the auxiliary memory to read the registered telephone number of the called subscriber.

Then, the common control device 5 controls the exchange network 3 of the electronic exchange system as shown in FIG. 3 to make the required connection.

The subscriber data area 7 and the auxiliary memory area 1
The registration and deletion of the called party's telephone number for 0 is
For example, by inputting a command and a telephone number from a typewriter.

〔The invention's effect〕

According to the present invention, the telephone number of the called subscriber that can be stored in the registered telephone number storage area as it is can coexist with the telephone number of the called subscriber whose number cannot be stored in the registered telephone number storage area. Therefore, even if the number of digits of only the telephone numbers of some called subscribers is increased, it can be applied.

Also, the telephone number of the called subscriber stored in the auxiliary memory is determined regardless of the number of digits assigned to the registered telephone number storage area of the subscriber information storage device, so the telephone number to be registered is registered as necessary. The number of digits of the calling subscriber's telephone number can be increased, and the code format of the telephone number stored in this auxiliary memory is different from the code format of the telephone number stored in the registered telephone number storage area. The special effect of being able to adopt a format can be achieved.

[Brief description of drawings]

FIG. 1 is a diagram showing the principle of a telephone number registration system according to the present invention, FIG. 2 is a diagram showing an example of contents stored in a subscriber information storage device according to the present invention, and FIG. 3 is an electronic device to which the present invention is applied. FIG. 4 and FIG. 5 are diagrams for explaining a telephone number and a compressed telephone number obtained by compressing this telephone number, and FIG. 6 is a diagram showing a telephone number that adopts the conventional compressed telephone number system. It is a figure which shows the memory content of the subscriber information memory | storage device which did. 6 ... Subscriber information storage device, 8 ... Subscriber data block assigned to each subscriber, 9 ... Registered telephone number storage area, 10 ... Auxiliary memory, F ... Flag, R ... Link information.

Claims (1)

[Claims] 1. An electronic switching system for registering a called subscriber telephone number in a registered telephone number storage area of a subscriber data block set in a subscriber information storage device and assigned to each subscriber. When the number of digits of the called party telephone number exceeds the number of digits stored in the registered telephone number storage area, the called party telephone number is stored in the auxiliary memory, and the telephone number is stored in the registered telephone number storage area. A telephone number registration system characterized in that a flag consisting of a code not used as a number and link information for accessing the called subscriber telephone number stored in the auxiliary memory are stored.