KR100233904B1 - Method for remote change of call using disa dn - Google Patents

Abstract

The present invention relates to a remote call transfer method using a diesa diene code, the method comprising: receiving a diesadiene code from a subscriber and transmitting a response dial tone according to the receiving diesadiene code to the subscriber; Setting a remote call transfer function for the designated telephone when receiving a special code according to a remote call transfer from a subscriber; If the remote call transfer function is set, the step of transmitting the completion tone corresponding to the setting to the subscriber has the effect of freely transferring the desired remote location to the call.

Description

Remote Call Switching Method Using DISA DN Code

The present invention relates to a remote call transfer method using a Direct Inward System Access Directory Number (hereinafter abbreviated as DISA DN) code of an electronic switchboard, and in particular, when a DISA DN code and a special code are dialed by a remote subscriber. In addition, the present invention relates to a remote call transfer method using a DISA DN code, which enables the remote subscriber to transfer a call to a desired telephone.

Typically, the electronic switchboard is an international standard electronic switchboard that provides the city / relay exchange function of the public switched telephone network (PSTN), and ultimately has a wide range of applications and various functions in various network types such as a comprehensive telecommunication network and an intelligent network. Development and flexibility are taken into account to provide

Since the transfer range of the conventional electronic switching center receives the transfer service only between subscribers connected to the local exchange, there is a problem that the remote transfer cannot be performed at a remote location outside the local exchange.

Accordingly, the present invention has been made to solve the above-described problems, the object of which is the DISA DN code, remote call forward code (remote call forward code) from the remote subscriber, the extension number of the telephone to be controlled, the code (authorized code), When the telephone number to be transferred is dialed, the present invention provides a remote call transfer method using a DISA DN code that enables a remote subscriber to transfer a call to a desired telephone.

Remote call switching method using the DISA DN code of the present invention for achieving the above object comprises the steps of: transmitting a response dial tone to the subscriber after receiving the disadiene code from the subscriber; Setting a remote call transfer function to a desired subscriber for the designated telephone when receiving a special code according to a remote call transfer from a subscriber; If the remote call transfer function is set, sending a completion tone corresponding to the setting to the subscriber.

FIG. 1 is a block diagram to which a remote call transfer method using a DISA DN code according to the present invention is applied.

2 is a flowchart illustrating a remote call transfer method using a DISA DN code according to the present invention.

<Explanation of symbols for main parts of drawing>

10 subscriber 20 electronic switchboard

30: line processor (LP) 32: line control (LC)

34: DSP131 40: Main Processor (MP)

42: Signal Control (SC) 44: Receive Number Analysis (NTR)

46: subscriber data handling (SDH) 48: database (DB)

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram to which a remote call transfer method using a DISA DN code according to a preferred embodiment of the present invention is applied. The subscriber 10, the electronic switch 20, and a line processor (Line Processor: LP (abbreviated as LP) 30, LC (trunk and analog Line Control: hereinafter abbreviated as LC) 32, Main Processor (hereinafter abbreviated as MP) 40, and SC ( Signaling Control (hereinafter abbreviated as SC) 42, NTR (Number Translation Receive: abbreviated as NTR) 44, and SDH (Subscriber Data Handling: abbreviated as SDH) 46 , DB (Data Base: hereinafter abbreviated as DB) 48, and DSP (Digital Signal Processing: hereinafter abbreviated as DSP) 131 (34), based on the above-described configuration DISA according to the present invention The remote call switching method using the DN load will be described in more detail with reference to FIG. 2 as follows.

The subscriber 10 dials the DISA number 200 at a remote location and transmits the DISA number to the electronic switchboard 20. An LP 30 and an MP 40 are provided in the electronic switch 20 that receives the dialing 200 signal for the DISA number.

There is an LC 32 inside the LP 30, and an SC 42, NTR 44, SDH 46, DB 48, and DSP131 34 inside the MP 40. It is.

Since the LC 32 inside the electronic switch 20 performs a function of monitoring and controlling the state change of the analog subscriber line and the relay line, and the digital relay line line, the LC 10 detects the DISA number transmitted by the subscriber 10 and the line of the line. If the condition is good, the SC 42 is informed 210 of the DN code. The SC 42 notified of the DN code receives a Dual Tone Multi-Frequency (DTMF) signal from the subscriber 10 and transmits / receives an R2 MFC (Multi-Freciuency Code) signal on a relay line. As it performs the management function, it confirms (220) and controls the DISA DN code and transmits the DISA DN code to the NTR (44).

NTR (44) analyzes the number and information received from the subscriber and the relay line to check the purpose and location of the destination, so it analyzes the DISA DN code (230) and transmits to the SC (42). The SC 42 requests 240 the DSP131 Tone to the DSP131 34 and the DSP131 34 transmits a response dial tone 250 to the subscriber 10.

After listening to the response dial tone, subscriber 10 dials in a procedure such as A in FIG. 2 to notify SDH 46 of the work code (260). The SDH 46, which receives the work code 270, generates the subscriber related information and performs the process of canceling the change, so that the work code, that is, the remote switching code, the extension number of the telephone to be controlled, and the authorized code Then, the telephone number to be transferred is generated and updated (280) in the DB (48) to check the job code (300) to the LC 32 (300) and terminate the job (290) and then through the SC 42 DSP131 (34) Request a DSP131 Tone (240) to the DSP131 (34) sends a confirmation tone (310) to the subscriber (10).

Based on the procedure described above, the subscriber 10 hooks on after hearing confirmation that all functions have been registered. When all the functions are registered in the electronic switchgear 20 as described above, the remote subscriber 10 transfers all the calls to the designated phone to the desired phone so that the user can talk freely at a desired time.

When the DISA DN code and the special code are dialed by the remote subscriber, the present invention described above transfers all the calls to the designated telephone to the desired telephone by the remote subscriber, thereby freely transferring to the desired remote location. It can work.

Claims (2)

A call transfer method of an electronic switching system which transfers all calls to a telephone designated by a subscriber, the method comprising: receiving a disadien code from the subscriber, and then responding to the subscriber with a response dial tone according to receiving the disadien code; Transmitting; Setting a remote call transfer function to a desired subscriber for the designated telephone when receiving a special code according to a remote call transfer from the subscriber; And when the remote call transfer function is set, transmitting a completion tone corresponding to the setting to the subscriber. The method of claim 1, wherein the special code is a remote call transfer code, an extension number of a telephone, a short code, and a telephone number for remote call transfer.