KR100264082B1 - Method for selecting transit line allotment a point of time selection in a full electronic telephone exchange - Google Patents

Abstract

PURPOSE: A method of selecting a trunk-allocating point of time in full electronic exchanger is provided to prevent from having a time-out and also appropriately select the trunk-allocating point of time. CONSTITUTION: A subscriber call control block(SCC) sets a transmission pointer variably from the maximum number of telephone numbers to the random number of telephone number which is smaller than the maximum number and can prevent from time-out and stores them in a memory. SCC successively transmits the telephone numbers dialed to a number translation block (NTR). NTR successively translates the telephone number with respect to the incoming terminal received and transmits them to SCC. SCC compares if the telephone number received is the same as the transmission pointer stored in the memory. If so, a call occupation request signal is transmitted to a route control matching unit (RCO). RCO transmits the trunk occupation request to trunk call control block (TCC). TCC allocates a trunk with other station's exchanger and transmits the telephone number translated after the transmission pointer to other station's exchanger, thus controlling the normal call processing between the terminal and the incoming subscriber.

Description

METHOD FOR SELECTING TRANSIT LINE ALLOTMENT A POINT OF TIME SELECTION IN A FULL ELECTRONIC TELEPHONE EXCHANGE}

The present invention relates to a relay line allocation time selection method of an electronic switchboard, and in particular, any telephone for preventing time-out from the maximum number of telephone numbers, which is the number of digits constituting the telephone number of the called subscriber to dial. A relay line assignment point selection method for selecting a relay line assignment point appropriately while preventing a timeout from occurring by setting a transmission pointer variably to a number.

Normally, when a dial pulse signal is input, the time-out is one digit number, for example, "0-9" and *, and a number when pressing the telephone number of the destination terminal among the numbers of #. After pressing, if the next number is pressed for a long time, for example after 20 seconds, a timeout occurs. Or, if a fixed transmission pointer is set only to the area code, timeout does not occur because the relay line is not connected to the set transmission pointer, but timeout occurs for the station number and telephone number transmitted thereafter. You need to dial the area code from the area code.

In addition, at the time of allocating the relay line of a conventional electronic switchboard, there is a problem that a timeout occurs depending on the speed of dial dial transmission at a low speed even if the telephone number of the destination terminal is long. .

Accordingly, an object of the present invention is to solve the above-described problem, and an object thereof is to provide a method for preventing a timeout to be smaller than the maximum number in the maximum number of digits constituting the telephone number of the called party to be dialed by the calling party. The present invention provides a method for selecting a relay line allocation point of an electronic switchboard, wherein a transmission pointer is variably set to a telephone number so as to prevent the occurrence of a timeout while appropriately selecting a relay line allocation point.

In the present invention for achieving the above object, the relay line assignment time selection method of the telephone switchboard is any telephone number for preventing timeout to be smaller than the maximum number of digits which constitute the telephone number of the called party to be dialed by the calling party. Variably setting a transmission pointer; Sequentially receiving and translating digits of the telephone number of the called party dialed by the calling party; Comparing and determining whether the number of digits of the telephone number of the called party translated in the translation step is equal to the number of set transmission pointers; If the telephone number of the called subscriber is equal to the number of transmission pointers in the comparison determination step, allocating the relay line by the call occupancy request signal.

1 is a block diagram illustrating a method for selecting a relay line assignment time of an all-electronic exchange according to the present invention;

2 is a detailed flowchart for performing a relay line assignment time selection method of an electronic switch according to the present invention.

<Description of the symbols for the main parts of the drawings>

1: terminal 2: SCC

3: RCO 4: NTR

5: TCC 6: Foreign exchange

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation of the present invention.

1 is a block diagram illustrating a method for selecting a relay line assignment time of an electronic switch according to the present invention. The terminal 1 and a subscriber call control block (hereinafter, abbreviated as SCC) 2 A route control matching block (abbreviated as RCO) (3), a number translation block (abbreviated as NTR) (4), and a trunk line call control block (Trunk Call Control: Hereinafter, TCC (abbreviated as TCC) 5 and another station exchanger 6 are included.

The terminal 1 is a telephone used by the subscriber, which dials a telephone number for a called terminal (not shown) and transmits the dialed telephone number to the SCC 2.

The SCC 2 is a block that performs local call control, outgoing call control, and incoming call control processing, which is larger than the maximum number in the maximum number of phone numbers, which is the number of digits constituting the telephone number of the called party to be dialed by the terminal 1. The transfer pointer is variably set to an arbitrary telephone number for preventing timeout and stored in a memory (not shown). In addition, the SCC 2 transmits the dialed telephone number received from the terminal 1 to the NTR 4, and checks whether the telephone number of the called party translated and received at the NTR 4 is the same as the transmission pointer stored in the memory. If the comparison is the same, a call occupancy request signal is sent to the RCO 3.

The NTR 4 translates and transmits the telephone number for the called terminal received from the SCC 2 to the SCC 2.

The RCO 3 is a route control matching block residing in the trunk line subsystem and transmits the trunk line occupancy request to the TCC 5 according to the call occupancy request signal received from the SCC 2.

The TCC 5 is a relay line call control block existing in the relay line sub-system, which allocates a relay line with another station switch 6 according to the relay line occupancy request received from the RCO 3.

With reference to the flowchart of FIG. 2, the relay line assignment time selection method of the all-electronic switchboard in this invention which has the above-mentioned structure is demonstrated in detail.

First, the SCC (2) in the main processor (MP) is from the maximum number of phone numbers, which is the number of digits constituting the telephone number of the called party to be dialed by the terminal 1 to any telephone number for preventing timeout less than the maximum number The transfer pointer is variably set and stored in the memory (step 201).

The SCC 2 then sequentially sends the dialed telephone number received from the terminal 1 to the NTR 4. The NTR 4 sequentially translates the phone number for the called terminal received from the SCC 2 and transmits it to the SCC 2 (step 202).

The SCC 2 compares and judges whether or not the telephone number of the called subscriber translated and received by the NTR 4 is the same as the transmission pointer stored in the memory (step 203).

If the telephone number of the called subscriber is the same as the transmission pointer stored in the memory in the determination step 203, the call occupancy request signal is transmitted to the RCO 3 (step 204).

The RCO 3 transmits the trunk line occupancy request to the TCC 5 according to the call occupancy request signal received from the SCC 2, and the TCC 5 transmits to the other station exchanger according to the relay line occupancy request received from the RCO 3; 6) Allocate a relay line with 6), and transmit the number translated and received after the transfer pointer to the other station switch 6 to control normal call processing between the terminal 1 and the called subscriber (step 205).

As described above, the present invention as described above does not set the transfer pointer in a fixed manner, but prevents timeout from the maximum number of telephone numbers, which is the number of digits constituting the telephone number of the called party to be dialed by the calling subscriber. By setting the transfer pointer variably up to any phone number for, it is effective to select the time point for allocating the trunk line while preventing timeout.

Claims (1)

In the method of selecting the relay line allocation time of the switchboard as the calling subscriber translates the telephone number of the called subscriber dialed in, Setting a transmission pointer variably to an arbitrary telephone number for preventing timeout to be smaller than a maximum number of telephone numbers, which is the number of digits constituting a telephone number of a called subscriber to be dialed; Sequentially receiving and translating digits of the telephone number of the called party dialed by the calling subscriber; Comparing and determining whether the number of digits of the called subscriber's telephone number translated in the translation step is equal to the number of the set transmission pointers; And allocating a relay line by a call occupancy request signal if the telephone number of the called subscriber is equal to the number of transmission pointers in the comparison determination step.

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