JPS63229958A - Telephone number registeration system - Google Patents

Abstract

PURPOSE:To increase the number of digits of a telephone number without exerting an influence on an existing registered telephone number storage area by storing the registered telephone number of a callee in an auxiliary memory. CONSTITUTION:In case the registered telephone number of the callee increases, and it is not stored by the storage capacity of the previously decided registered number storage area, the telephone number is stored in the auxiliary memory 10, and a flag F showing the telephone number concerned is stored in the auxiliary memory 10 and address information of the auxiliary memory 10 are stored in the registered telephone number storage area 9 in a subscriber data block 8 which originally has to store the telephone number. If a subscriber starts calling and calls the registered called subscriber, a controller identifies that the telephone number of the called subscriber is stored in the auxiliary memory 10 by the flag F, accesses to the auxiliary memory 10 by address information and the like, and reads the telephone number.

Description

[Detailed Description of the Invention] [Summary] When registering a called subscriber number corresponding to a subscriber in an electronic switching system, the number of digits of the called subscriber's telephone number to be registered is determined by the registered telephone number storage. If the allocated storage capacity of the area is exceeded, the called party's telephone number is stored in the auxiliary memory, and a flag with a code that is not used for telephone numbers is added to the above area. The link information for accessing the phone number is now stored.

[Industrial application field]

The present invention provides a method for making telephone calls when the number of digits of the telephone number of the called subscriber to be registered exceeds a preset number of digits when registering the telephone number of the called subscriber as a subscriber service in an electronic switching system. Regarding number registration method.

[Conventional technology]

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

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

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

To register a called subscriber's telephone number in the subscriber information storage device 6, a subscriber data block 8 is provided for each subscriber in the subscriber data area 7 of this storage device 6, and the subscriber data block 8 in this subscriber data block 8 is registered. The telephone number of the called subscriber specified by the subscriber of the block is registered in the registered telephone number storage area 9.If the telephone number is up to 8 digits, each digit can be stored using BCD code to obtain 8 digits x Data can be stored as is from 4 bits to 32 bits.

In this illustrated example, a compressed telephone number is used to store a 9-digit telephone number in 32 bits forming one word, for example, a 2-digit area code as shown in FIG. , a 9-digit subscriber telephone number consisting of a 3-digit office code and a 4-digit directory code1'
-X41 Xs X7 Xs XS X4 Xa X2
The most significant digit in XI J, X9, is one of the 12 numbers 0 to 9 or one of * or #, and the eight digits below are any number from 0 to 9, so BCD is If used, it would require 9 digits x 4 bits = 36 bits, so it cannot be stored as is in the 1 word storage area mentioned above.

Therefore, as shown in Figure 5, a single 4 bit is assigned to the most significant digit X9, and each digit of Xe = Expressed in hexadecimal, 1 word of 32 bits contains the above 9
! This is registered in the registered telephone number storage area 9 as shown in FIG. 6 as a compressed telephone number that accommodates the IR telephone number.

[Problem that the invention seeks to solve]

As mentioned above, the subscriber telephone number is stored in the subscriber information storage device 6.
In order to fit the number into one word, even if we take measures such as compressed telephone numbers as described above, if the number of digits exceeds a certain number, the absolute number of bits will be insufficient and it will not be possible to register the number in one word.

In electronic exchange systems, due to the increase in the number of subscribers and improvements in service content, it has become impossible to provide subscriber services with the number of digits that were used up until then, and subscriber telephone numbers with a larger number of digits than the number of digits used up until then have become impossible. In such cases, it is impossible to store a new number of digits in a predetermined storage area such as one word as described above, so it is necessary to take some countermeasures. It becomes necessary.

The simplest method is to use a storage device that can process a sufficient number of bits as one word to store a telephone number with a new number of digits, but in this case, the processing system of the exchange system itself has to be changed. Otherwise, the design of the entire electronic switching system including the software would have to be changed.Another method, for example, is to allocate a set of two words as a storage area for telephone numbers, and then write one telephone number across these two words. One possible method is to store the information, but in this case, the problem arises that the memory usage efficiency is significantly reduced.

The present invention was invented based on the above circumstances, and provides a telephone number registration method that allows the number of digits of registered telephone numbers to be increased without affecting the existing registered telephone number storage area. be.

[Means for Solving the Problems] FIG. 1 shows the principle of the present invention, and shows the registered telephone number of the subscriber data block 8 set in the subscriber information storage device 6 and assigned to each subscriber. In an electronic switching system that registers a called subscriber's telephone number in the storage area 9, if the number of digits of the called subscriber's telephone number to be registered exceeds the storage capacity of the registered telephone number storage area, the called The subscriber's telephone number is stored in the auxiliary memory 10, and the registered telephone number storage area 91 contains a flag F consisting of a code that is not used as a telephone number and the called subscriber's telephone number stored in the auxiliary memory. Link information R for access is stored.

It is assumed that the telephone number of the called subscriber is stored in the registered telephone number storage area 9o as in the conventional case.

C action] For example, 8 words that can be registered with one word using the conventional method.
The telephone number of the called subscriber with digits or less than nine digits is registered in the registered telephone number storage area 9o of the subscriber data area 7 in the same manner as in the past using the above-mentioned compressed telephone number or the like.

In the case of a telephone number that cannot be stored due to the increased number of digits depending on the storage capacity of the predetermined registered telephone number storage area, this telephone number is stored in the auxiliary memory 10, and the subscriber who should originally store this telephone number The registered telephone number storage area 9 of the data block 8 stores the telephone number in the auxiliary memory 10.
A flag F indicating that the telephone number is stored in the auxiliary memory and link information necessary to read the telephone number such as the address where the telephone number is stored in the auxiliary memory are stored.

When a subscriber makes a call to call this registered called subscriber, the common control unit (FIG. 3, 5) 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 out according to the flag F read out from area 9 is stored in auxiliary memory 1o.
identify that it has been accumulated in Then, based on the link information R read out at the same time, the address in the auxiliary memory 1o where the relevant telephone number is stored is accessed, and the telephone number of the desired called subscriber is read out.

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

In addition, the telephone number of the called subscriber stored in the auxiliary memory is limited by the number of digits set for the auxiliary memory, and the number of digits allocated to the registered telephone number storage area of the subscriber information storage device is limited. Since it is determined independently, the number of digits of the telephone number of the called subscriber to be registered can be increased as necessary.

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

It goes without saying that the auxiliary memory may be set by dividing the memory area of the subscriber information storage device 6 like the subscriber data block, or an independent dedicated memory may be provided.

〔Example〕

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

Registered telephone number storage area 9 of subscriber data block 8o
o, the 9-digit telephone number of the called subscriber is registered as the compressed telephone number explained earlier, the most significant digit X9 is in bits #0 to #3, and the following eight digits X8 to X1 are #4 to #10, #11 to #17, #18 to
The storage in bits #24 and #25 to #31 is the same as in the conventional case.

When registering a telephone number with 9 or more digits (indicated as 11 digits in this example), as shown in the registered telephone number storage area 91, the most significant digit x9 described above should be stored in 4 of #0 to #3. The bit is used as the storage location for flag F. In other words, 12 types of numbers 0 to 9 and symbols * and # are used as the most significant digit X9 of a telephone number, and these can be expressed using the 4 bits assigned to this most significant digit. When expressed in hexadecimal numbers, it can be expressed as "0' to "B", and there is no need to use the four numbers "C" to "F", so for example, "E"("1110") can be stored in the auxiliary memory. Used as a flag to indicate that a phone number is stored.

Then, the 28 bits #4 to #31 following this most significant digit are used as the storage location for the link information R, and the telephone number of the called subscriber is stored in the storage location of the auxiliary memory area l00) designated by this link information. Accumulate. In FIG. 2, the telephone number stored in the auxiliary memory is shown as 11 digits, and the number is stored over a storage area of 2 words.

When a subscriber to whom this subscriber data block 81 is assigned makes a call and calls a called subscriber whose telephone number is registered as described above, the common control device (Fig. 3, 5)
accesses the subscriber data block 81 assigned to the subscriber and enters #0 in the registered telephone number storage area 91.
~ By reading “E” from the 4 bits of #3, it is identified that the telephone number of the called party is stored in the auxiliary memory area E0, and the data of bits #4 to #31 are linked. The information is interpreted as information R, and the address thus obtained is used to access the auxiliary memory and read out the registered telephone number of the called party.

The common control device 5 then controls the switching network 3 of the electronic switching system as shown in FIG. 3 to make necessary connections.

Furthermore, subscriber data area 7 and auxiliary memory area 1
Registration and deletion of the called subscriber's telephone number for 0
For example, this is done by manually inputting commands and telephone numbers on a typewriter.

〔Effect of the invention〕

According to the present invention, the telephone number of the called subscriber that can be stored as is in the registered telephone number storage area can coexist with the telephone number of the called subscriber that has a number of digits that cannot be stored in the registered telephone number storage area as described above. Therefore, it can be applied even when the number of digits of only the telephone number of some called subscribers increases.

In addition, the telephone number of the called subscriber stored in the auxiliary memory is determined regardless of the number of digits allocated to the registered telephone number storage area of the subscriber information storage device, so the telephone number of the called subscriber to be registered is determined as necessary. It is possible to increase the number of digits of the telephone number of the call subscriber, and the code format of the telephone number stored in this auxiliary memory is also different from the code format of the telephone number stored in the registered telephone number storage area. A special effect can also be achieved by adopting the format.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing the principle of the telephone number registration system according to the present invention, Fig. 2 is a diagram showing an embodiment of the storage contents of the subscriber information storage device according to the present invention, and Fig. 3 is a diagram showing the electronic system to which the present invention is applied. A configuration diagram of an example of an exchange system. Figures 4 and 5 are diagrams explaining telephone numbers and compressed telephone numbers that are compressed telephone numbers. Figure 6 is a diagram for storing telephone numbers using the conventional compressed telephone number system. FIG. 3 is a diagram showing the contents stored in the subscriber information storage device. 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] In an electronic switching system in which a called subscriber telephone number is registered in a registered telephone number storage area (9) of a subscriber data block (8) set in a subscriber information storage device (6) and assigned to each subscriber. If the number of digits of the called subscriber's telephone number to be registered exceeds the storage capacity of the registered telephone number storage area, the called subscriber's telephone number is stored in the auxiliary memory (10
), and the registered telephone number storage area also contains a flag (F) consisting of a code that is not used as a telephone number and link information for accessing the called subscriber telephone number stored in the auxiliary memory. A telephone number registration method characterized by storing (R).