JPS6072365A - Call transferring system during speaking - Google Patents

Abstract

PURPOSE:To call other extension easily by receiving dial information of 0-9 provided in an ordinary telephone set for transfer request from an extension which is a state of speaking. CONSTITUTION:When an extension subscriber A is speaking with a subscriber of main wire, private line or other extension, and it becomes necessary to transfer to an extension subscriber B, if the subscriber B is an adjoining subscriber whose number is different from A only in final letter, the subscriber A dials final number, for instance ''2''. A controlling circuit CC in an extension subscriber circuit LC always watches dial of the subscriber A, and when transfer request dial arrives from a passage 3, receives the dial information. The device CC recognizes that the dial is busy, and the object of speaking is suspended for a time and call is made by sending ringing tone to the subscriber A from a tone generator TN and sending a call signal to the suscriber B from a signal generator SIG. When the subscriber B makes a reply, and telephone conversation is made with the subscriber A.

Description

DETAILED DESCRIPTION OF THE INVENTION (11) Technical Part 1jF The present invention relates to a transfer method that simplifies the operation when transferring a call in progress to another extension in an automatic switching system and enables easy transfer. It is something.

(2) Conventional technology and problems In the conventional transfer method, even when transferring to an extension with a different last digit or a completely different number, there is no need to press the "1" dial or button during the call. The user had to go through the troublesome operation of dialing the extension number of the destination, making the call, and then transferring the call. This is because the conventional switching equipment is centrally controlled, and is a central office trunk used during calls.

If you try to add a dial counting circuit to a dedicated line trunk or mutual extension trunk to monitor dialing during a call,
This increases the load on the central control unit that performs centralized control and increases the cost of the trunk, which impairs economic efficiency. Therefore, a hooking or dial flash or button detection circuit is installed in the trunk, and after the signal is detected, a transmission register, which is a common device, is installed. This was due to the economical system configuration in which the connection was changed at the time of the call, and then the central control unit monitored the dial and counted the number of stitches at the dialing register.

(3) Purpose of the Present Invention In view of the above-mentioned drawbacks of the prior art, the present invention eliminates the conventional fusoking, pad dialing, and button press operations when a transfer request is made from an extension line that is in a busy state, and uses a normal telephone During a call, you can easily call another extension by receiving dial information from 0 to 9, which is always included in special telephones.
11" transfer method.

(4) Structure and object of the invention According to the present invention, in an automatic private branch exchange device having a call monitoring memory for monitoring the call status for accommodated I subscribers, an extension subscriber who is in the middle of a call within the subscriber circuit A means for receiving dialing information from a subscriber is provided, and when transferring the other party to another extension during a call, the last number of the telephone number of the other extension subscriber to be transferred or the number of each extension in a specific group is provided. By dialing the set number for each 'i! [This is achieved by providing a call transfer system during a call, which is characterized in that it performs switching control and transfers the called party to the other extension.

(5) Examples of the invention Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing the method of dial counting and accumulation in the subscriber circuit LC according to the present invention.

In Figure 1, 'C21 is a telephone circuit, 2 is a calling signal transmission adapter, and 3 is a telephone circuit + 1] which transmits a dial signal to the dial reception circuit (4), and receives the dial information by dividing it by dividing it into the microprocessor (6). 4 is a dial receiving circuit, and 5 is a CC adapter that controls information between the microprocessor (6) and a central control unit (CC).

6 shows the microbroses, and 7i shows the sled.

Dial information from the extension subscriber SUB is manually input from the telephone circuit 1 to the dial receiving circuit 4 via the circuit adapter 3. The dial receiving circuit 4 exchanges dial pulses into dial information or converts the PB dial into a signal readable by the microprocessor 6.

The microprocessor 6 monitors the reception of dial information, and when it is received, it is temporarily stored in the memory 7 and subsequently transmitted to the control device CC via the CC adapter 5.

No. 21 No. 1 is a block diagram illustrating a call transfer method during a call according to the present invention.

In the figure, NW is the communication path connection, CC is the control device, ML is the memory, CO'F is the office line trunk, 'FN
S is an I-tone generator, LC is a subscriber circuit having means for receiving and storing dial information as explained in FIG. 1, and SIG
is a signal generator, EXT-A.

IEX'r-B is an extension subscriber.

Extension subscription -9 While EXT-A is talking to a central office line, leased line, or other extension subscriber (route ■), an extension subscriber (EXT
- When transfer to B) is required, the extension subscriber (EXT
-B) is an adjacent subscriber whose extension number has a different ending number from extension subscriber EXT.'J (Example: If Δ's extension number is 11113, it is 212.) Extension subscription Person 1 possible
When you dial °, the extension subscriber circuit LC monitors the dialing of extension subscriber IE
The control device CC receives the dial information via route 6) and recognizes that the dial is a busy dial (that is, identifies it as a call hack request dial, etc.) and performs conventional hooking (or button, identification). ``Number, etc.'' - ``Extension number'' is performed, the other party (in this example, the central office line call) is temporarily put on hold, and the tone generator T is applied to the extension subscriber EXT.8.
The NS sends a ringing tone and the signal generator STG sends a ringing signal to the extension subscriber EXT-B to make a call.

When extension subscriber EXT-B responds, a call can be made to the extension subscriber. When extension subscriber EXT-A hangs up the handset, the office line, etc. is transferred to extension subscriber EXT-B, and a call between the office line, etc. and extension subscriber EXT-B can be made via route (2).

FIG. 3 is a flowchart illustrating the operation of the control device CC in the present invention.

When extension subscriber EXT-A and office line 1-rank are talking, the telephone number and office line of extension subscriber [7, XT-A] are stored in the call monitoring memory of the control device CC. Trunk information is stored and waiting for disconnect or dial information. (State of ■) When the dial information "2" is received from the subscriber circuit LC, the process of ■ is carried out, and the first G is 5 tongues I? Assemble the changed Rall iin number "212", set it in the call monitoring memory as the number of extension subscriber .Extension subscription JHn
11 of Xr.B also answers, and extension subscriber E.X.T.8 hangs up the phone (and the processes of ■ and ■ are carried out, respectively, and the transfer is completed.

The above is an example where the ending of extension i is different, but 10
Subscribe ft' ((1-9) or 12 subscribers (press 0-9 &
#, *) of U telephones are formed into a group of extension subscribers with completely different numbers, ζ set a number to each extension subscriber in advance -C
If you do, you can transfer using the transfer method described above.

Another way to transfer to a phone with a completely different number that does not form the same group is to listen to the late caller who presses the 7King or ``all'' button and then dials the number of the transfer destination. , 'Ci;j ability.

If a call is being made to the other party's extension subscriber and the other party does not respond, it is also possible to easily transfer the call using a similar operation.

(6) Effects of the invention As explained above in detail, the call transfer method of the present invention performs hooking and transfers the number of the other party when transferring a call to a central office line or leased line to an adjacent extension subscriber. This has the advantage of being able to call the other party by dialing only one digit without having to dial, thereby improving callability.

[Brief explanation of the drawing]

FIG. 1 shows dial 8 of the subscriber circuit used in the present invention.
1 number and accumulation block (composition diagram, Figure 2 is □ Relay explaining the call forwarding method according to the present invention) System diagram, Figure 3 is the operation of the control device used in the present invention □ In the drawing, 1 indicates a telephone circuit, 2 indicates a SIG adapter, and 3
is the circuit adapter, and 4 is the ear receiving circuit. □ 5 is a CC adapter, 6 is a microprocessor, 7 is a central office line trunk, 1. C indicates a subscriber circuit, respectively.

Claims (1)

[Claims] In an automatic private branch exchange system having a call monitoring memory for monitoring the call status of the accommodated subscriber, a means is installed in the subscriber circuit to receive information from an extension subscriber who is currently on a call. When transferring the caller to another extension,
By dialing the last number of the telephone number of the other extension subscriber to be transferred or the number set for each extension number in a specific group, the information in the call monitoring memory is permuted and controlled. A call transfer method during a call, characterized in that the call can be transferred to the other extension subscriber.