JPH0879408A - Exchange system - Google Patents

Abstract

PURPOSE: To effectively utilize an LCR function without performing another center loading even after the exchange of a circuit board. CONSTITUTION: Loading data inside a static memory 102 are temporarily stored in a pseudo static memory 104 and further transferred through a data bus 121 to an IC memory card by a central arithmetic part 101. When this IC memory card is inserted to an IC memory card interface 103 of the new substrate. The data in the IC memory card are temporarily stored through the data bus 121 to the pseudo static memory 104 and transferred again to the static memory 102 later.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching system which realizes an LCR function based on data stored in a memory.

2. Description of the Related Art Conventionally, for example, in a switching system having an LCR (Least Cost Routing) function for automatically selecting a line with a low call charge, a memory capable of backing up LCR loading data for the LCR function (for example,
Static RAM). Then, in the central processing unit of the system, a part other than a circuit for reading or writing the contents of the static RAM (for example, a modem part, a DLC part, a COT part, etc.) fails, and the board must be replaced. In this case, the memory on the board to be newly replaced is center-loaded.

However, in the above-mentioned conventional switching system, the LCR loading data is important even when the line selection is performed due to the nature of the above-mentioned failure occurrence when the line is selected. When the board on which the memory in which is stored is mounted is replaced, the memory itself becomes new and the LCR loading data is erased, and the center loading for storing the LCR loading data in the memory must be performed again. There's a problem. The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to perform LCR without center loading even if a substrate mounted with a memory storing LCR loading data is replaced.
It is to provide an exchange system that can utilize the functions.

[Means for Solving the Problems] and

To achieve the above object, the present invention provides a removable memory element in a switching system which accommodates a plurality of telephone terminals and realizes an LCR function based on LCR loading data stored in a memory. The connecting means connected from the outside and the LC in the memory through the connecting means
A means for writing the R loading data into the memory element and a means for reading the LCR loading data written in the memory element via the connecting means are provided, and the memory element is used as a medium even when the memory is replaced. The LCR loading data is transferred to the new memory after replacement.

In the above structure, the loading data is transferred to a new static memory, and the LC is continuously read.
Functions to realize the R function.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a block diagram showing the configuration of the entire switching system according to an embodiment of the present invention. In the figure, the exchange system 100 is a static storage unit that stores a central processing unit 101 that controls the entire exchange system, LCR loading data, and various data necessary for system operation according to a control program stored in a memory (not shown). A memory 102, a pseudo static memory 104, an IC memory card interface 103 for connecting an IC memory card described later, a modem 105, and a memory time switch 106 for time-division exchange of call data and the like are provided, and these are a data bus 121.
Are connected to each other.

Also, an outside line interface 107 for accommodating a line 120 in the present switching system and a telephone terminal 11
Digital line interface for accommodating 0
A controller (DLIC) 108 is provided, and through the PCM highways 130 and 131, telephone terminals (not shown in FIG. 1, the present switching system accommodates a plurality of telephone terminals) or a telephone terminal 110. Data communication and communication are performed between the lines 120.

A battery 109 is connected to the static memory 102 for backing up the stored contents, and a switch 111 used for data transfer, which will be described later, is connected to the central processing unit 101.

FIG. 2 is a diagram showing an overview of a telephone terminal accommodated in this exchange system. In the figure, the telephone terminal body 200 includes a function LED 201, a dial unit 202,
A handset 203 for calling is provided.

The processing of loading data in the exchange system according to this embodiment will be described in detail below. <Input of loading data> NTT LCR function
The data for selecting the line of each NCC company is performed from a loading center (not shown). That is, if an incoming call is received from the switching center 100 from the loading center, the line 120 is closed by the external line interface 107, and predetermined data is exchanged by the memory time switch 106 to be input to the modem 105. The data demodulated by the modem 105 is sent to the central processing unit 1
Under the control of 01, the data is stored in the static memory 102 via the data bus 121. <Transfer of loading data (1)> Static memory 1 in which loading data is stored as described above
The board on which 02 is mounted is, for example, the central processing unit 101, the static memory 102, the pseudo static memory 104, and the IC memory card interface 1 shown in FIG.
In the replacement system according to the present embodiment, when the parts other than 03 need to be replaced due to a failure, the loading data is transferred to the IC memory card, and the data is transferred to the static memory on the newly replaced board again. ,Forward. The procedure will be described below.

First, an IC memory card (not shown) is added to the IC memory card interface 103 of the defective board.
Switch 11 connected to the central processing unit 101
When 1 is turned on, transfer of loading data is started. As a result, the loading data in the static memory 102 is temporarily stored in the pseudo static memory 104 by the central processing unit 101.
By the central processing unit 101, I
C memory card. <Transfer of loading data (No. 2)> Static memory 1 when the above IC memory card is inserted into the IC memory card interface 103 of the new substrate
The transfer of the loading data to 02 will be described.

Static memory 102 of the defective substrate
The IC memory card to which the loading data stored in is transferred to the IC memory card interface 103 of the new board, and the dial unit 2 of the telephone terminal 200 is inserted.
Enter the password using 02. As a result, the data in the IC memory card is controlled by the central processing unit 101, and the pseudo static memory 1 is transferred via the data bus 121.
It is temporarily stored in 04.

The data stored in the pseudo static memory 104 is further transferred to the static memory 102 under the control of the central processing unit 101. When the transfer is completed, the central processing unit 101 notifies the phone terminal 200 that the transfer is completed, and the phone terminal 200 turns on the function LED 201.

As described above, according to this embodiment,
By transferring the loading data in the static memory to the IC memory card and re-transferring the data stored in this IC memory card to the static memory mounted on another board, a simple operation can be performed without center loading. Thus, the loading data can be transferred to the static memory of the new board, and the LCR function can be continuously realized even in the device on which the new board is mounted. <Modification> A modification of the above embodiment will be described below.

FIG. 3 is a block diagram showing the configuration of the entire switching system according to this modification. In the figure,
The same components as those of the exchange system according to the above embodiment shown in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted here. Further, as shown in FIG. 3, the switching system according to the present modification does not include an LCR loading modem.

When the IC memory card storing the loading data according to the procedure described in the above embodiment is inserted into the IC memory card interface 103 of the exchange system 300 according to this modification and the password is entered from the dial section of the telephone terminal. The data stored in the IC memory card is transferred to the data bus 12 by the central processing unit 101.
It is temporarily stored in the pseudo static memory 104 via 1.

Further, the central processing unit 101 transfers the data stored in the pseudo static memory 104 to the static memory 102. When this transfer is completed, the central processing unit 101 notifies the telephone terminal that the transfer is completed, and the telephone terminal turns on its function LED.

As described above, since the loading data can be transferred by using the IC card as a medium even in the exchange system which is not equipped with the LCR data transmission / reception modem, the LCR function can be utilized even in the exchange system which is not equipped with this kind of modem.

The present invention may be applied to a system composed of a plurality of devices or an apparatus composed of a single device. Further, it goes without saying that the present invention can be applied to the case where it is achieved by supplying a program to a system or an apparatus.

[0016]

As described above, according to the present invention,
Transfer loading data in memory to external memory,
By re-transferring from the external memory to another memory, there is an effect that the LCR function can be continuously realized.

[0017]

[Brief description of drawings]

FIG. 1 is a block diagram showing an overall configuration of an exchange system according to an embodiment of the present invention.

FIG. 2 is a diagram showing an overview of a telephone terminal according to an embodiment.

FIG. 3 is a block diagram showing an overall configuration of a switching system according to a modified example.

[Explanation of symbols]

100 Switching System 101 Central Processing Unit 102 Static Memory 103 IC Memory Card Interface 104 Pseudo Static Memory 105 Modem 106 Memory Time Switch 107 External Interface 108 Digital Line Interface Controller (DLIC) 110 Telephone Terminal 120 Line 121 Data Bus

Claims (4)

[Claims] 1. A switching system which accommodates a plurality of telephone terminals and realizes an LCR function based on LCR loading data stored in a memory, and a connecting means for externally connecting a removable memory element, and the connection. Means for writing the LCR loading data in the memory to the memory element via means, and means for reading the LCR loading data written in the memory element via the connecting means, wherein the memory is replaced. Even if the memory device is used as a medium, the LCR loading data is transferred to a new memory after replacement. 2. The exchange system according to claim 1, further comprising means for visually displaying on the telephone terminal the end of transfer of the LCR loading data. 3. The exchange system according to claim 1, wherein the memory device is an IC memory card. 4. The L transmitted via a line
The switching system according to claim 1, further comprising means for demodulating CR loading data, wherein the memory stores the demodulated LCR loading data.