JPS63204959A - Remote station belonging to local telephone exchange - Google Patents

Abstract

PURPOSE:To considerably reduce time in which a common channel is used for dial transfer from a remote station to a local exchange by collectively transmitting only the numbers of complete dials to the local exchange after all the dials are received and accumulated in the remote station. CONSTITUTION:A signal reception part 2 receives the dial number from a re mote station subscriber 1. If a subscriber state memory 4 is in a dial number reception state in a signal analysis part 3, it is transmitted to a dial number pre-translation function part 5. Said part 5 refers the first or the second number of the dial number which has been transmitted to a pre-translation table 6, decides the type of a call whether it is a toll call, a local call or a special number call, and executes pre-translation deciding the number of digits to be received. A having received dial is written in a dial number accumulation mem ory 7. If the digit number reaches a numeric decided by pre-translation, all the numbers written in the dial number accumulation memory 6 are transmitted to a host station through a communication control part 8. Thus, only the com plete number is collectively transferred to the host station, whereby time in which the common channel is used for dial transfer is shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Application on a1 The present invention relates to an in-office device of a remote station belonging to a local telephone exchange.

(Prior Art) Conventionally, the in-office equipment of remote stations belonging to local telephone exchanges (hereinafter referred to as local exchanges) does not have a dialed digit pre-translation function unit, and the dialed digits sent by the subscriber are It was sent from the remote station to the local exchange through a common line for call control communication.

[Problem that the invention seeks to solve]

The conventional in-office equipment of the remote station described above does not have a dial digit pre-translation function, and the dial digits received at the remote station are -
Since each digit must be sent from the remote station to the local exchange, the number of signals passing through the common line between the remote station and the local exchange is large, and even if an attempt is made to increase the call processing capacity of the remote station, the common line for call control communication is The disadvantage is that the lines (hereinafter referred to as common lines) become a bottleneck.

[Means to solve the problem]

The in-office device of the remote station belonging to the local telephone exchange of the present invention determines the number of digits of the dial to be received based on the dialed digits transmitted by the subscriber, and when incomplete dialing is detected, the device abandons the call to the parent station midway. A dialed digit pre-translation function unit that requests the transmission of a signal, a dialed digit storage memory in which a series of digits dialed by the subscriber is stored, and a dialed digit pre-translation function unit that receives the number of digits determined by the dialed digit pre-translation function unit. When the dial number storage memory is finished, it has means for sending the numbers stored in the dial number storage memory all together to the master station.

(Function) Therefore, the transmission of incomplete dials is eliminated by the dial digit pre-translation function unit, and only complete dials are transferred to the master station at once, so the time that the common line is used for dial transfer is shortened.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of a remote station belonging to a local telephone exchange of the present invention.

The remote station connected to the local exchange through a communication line and a common line for call control signal communication includes a signal receiving section 2, a signal analyzing section 3, a subscriber state memory 4, a dialed number pre-translation function section 5, and a pre-translation table 6. , a dial number storage memory 7, and a communication control section 8.

The dialed digits from the remote station subscriber 1 are received by the signal receiving section 2, and sent to the dialed digit pre-translation function section 5 when the subscriber state memory 4 in the signal analyzing section 3 is in the dialed digit receiving state. The dialed digit pre-translation function unit 5 refers to the pre-translation table 6 for the first and second digits of the received dialed digits and determines whether the call is a long-distance call, a local call, or a special number call. Performs pre-translation to determine the type and determine the number of digits to be received. The received dial is written into the dial number storage memory 7, and when the number of digits reaches the number determined by the pre-translation, the received dial is written into the dial number storage memory 6 via the communication control unit 8 by a central processing unit (not shown). All numbers entered are sent to the master station. In addition, if the number written in the dial number storage memory 7 is not far from the number of digits determined in the pre-translation, the dial number pre-translation function unit 5
The dial digit timing monitoring function determines that dialing has been abandoned, and a central control unit (not shown) requests the master station to send an abandonment signal.

〔Effect of the invention〕

As explained above, the present invention has the remote station equipped with a dial digit pre-translation function, and after receiving and storing all dials at the remote station, sends only the complete dial digits at once to the local exchange. This has the effect of greatly reducing the time required to use a common line for dial transfer from a remote station to a local exchange.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of a remote station belonging to a local telephone exchange of the present invention. 1... Remote station accommodating subscriber, 2... Signal receiving section, 3... Signal analyzing section, 4
... subscriber status memory, 5 ... dial digit pre-translation function section, 6 ...
Pre-translation table, 7... Dial number storage memory, 8.9...
Communication control unit.

Claims (1)

[Claims] The number of dialed digits that should be received from dialed digits transmitted by a subscriber at a remote station connected to a local telephone exchange accommodating the subscriber through a telephone line and a common line for communication of call control signals. A dial digit pre-translation function unit that determines the number of dials and requests the parent station to send an abandonment signal when incomplete dialing is detected, and a dial digit storage memory that stores a series of digits dialed by the subscriber. and, when the dial digit pre-translation function unit finishes receiving the dial digits of the determined number of digits, the dial digit pre-translation function unit has a means for sending the digits stored in the dial digit storage memory all together to the master station. A remote station belonging to a telephone exchange.