JPS62175099A - Private branch exchange - Google Patents

Abstract

PURPOSE:To interlock a PBX dial-in with a night switching service by retrieving the second memory means by day and night information discriminated by retriev ing the first memory means and an extension designating number signal of the first prescribed digit, determining the extension number of the second pre scribed digit and performing a calling processing to a corresponding extension terminal CONSTITUTION:A control part 19 receives the extension designating number, if it stored the extension designating number of the number of digits in a table D, for instance four digits of ZZZZ, a table A is searched by a binary search method and a storing position for ZZZZ is found, and then the state of a table E is read. If a real time is day, an incoming terminal CCC corresponding to the position where a table B is present is read, and if it is night, an incoming terminal ATT1 corresponding to the position where a table C is present is read. Thereafter, if the incoming terminal CCC or ATT1 is present in the PBX, the state of the incoming terminal is decided, and if it is idle, the incoming terminal is called up. If there is a response, the paths of the incoming terminal and a dial in trunk are turned on to operate a channel.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention 1] The present invention relates to a private branch telephone exchange having PBX dial-in service capability.

[Technical disadvantage of the invention 1 In the conventional private branch exchange + 1 (P B
Then, this specific telephone number is assigned to each extension of the PBX. Each time J3 joins in Figure 6, when a telephone number (e.g. 03-599-1234) is sent from FA 601 to central exchange 603, central exchange 6
03 is P [3X Sends the last 1 to 4 digits of the telephone number as an extension designation number signal to
) B jlrai F/lke607
send to That is, P8X605 shows a table for changing the extension designation number signal to the extension number of the extension telephone (607).

[Problems with F backup technology] However, such conventional PBX
- There is a problem that the night switching service (manual and automatic) cannot be linked with the service function.

[Object of the Invention] The present invention was made in view of the bending problem, and its purpose is to improve PBX dial-in and nighttime 1. /J? J
It is possible to link with Levis (manual and automatic), and
Provides a private telephone exchange that allows a full incoming call to the P B It's about doing.

[Summary of the Invention] In order to achieve the above object, the present invention provides a means for receiving an extension designation WI1 signal of the first predetermined digit obtained via the subscriber line, and a means for storing the distinction between day and night in real time. 1 storage means, a second storage means for storing a daytime IP address in a second predetermined digit, an A number, and a nighttime extension number in a second predetermined digit; means for searching the second direct means and determining the extension number of the second predetermined digit based on the determined day/night information and the received extension designation number signal of the first predetermined digit; The present invention is characterized by comprising means for performing call processing on an extension terminal corresponding to an extension number A.

[Embodiment 1 of the invention Embodiments of the present invention will be described in detail below based on the drawings.

FIG. 1 is a block diagram showing the configuration of a PBX and its peripheral devices according to the present embodiment.
-1 to 7-rn, and a display panel circuit 9. Dial-in circuits 5-1 to 5-n correspond to subscriber lines 11-1 to 11-1, respectively.
1-n, and extension circuits 7-1 to 7-(rn-1)
The extension telephones are connected to 13-1 to 13-(m-1),
The display panel circuit 9 is connected to the station line display panel 15, and the relay board 17
is connected to extension circuit 7-m. The exchange circuit 3 is also connected to a control section 19, and a storage section 21, a maintenance terminal 23, a day/night selector switch 25, and a timer 27 are connected to this control section 19.

FIG. 2 is an explanatory diagram showing an overview of the control section 19 and the storage section 21, and the control section 19 is connected to a maintenance terminal (1"TY).
23 to designated extension number, daytime incoming terminal.

A night incoming terminal, a registration control means 29 for registering the number of digits of an extension designation number in the storage section 21, and a day/night changeover switch 25.
The timer 27 and the storage unit 21 determine whether the real time is day or night. The extension designation number table registered by the two registration control means is searched using the binary search method to find the corresponding accommodation position 1, and the receiving terminal at the corresponding accommodation position is searched day and night.
The apparatus includes a call control means 33 for reading out the day or night call terminal table according to the filling placed on the day and night table by the call control means 31, determining the state of the call reception terminal, and making a call. The storage unit 21 stores a table A that stores the extension designation number inputted by the registration control means 29, a table B that stores daytime call terminals in the storage position corresponding to the extension designation number, and a night call reception terminal. table C1 to store the number of digits of the extension designation number, and table D to store roughly whether the real time is day or night.

Next, the renovation of the private telephone exchange I constructed as described above will be explained in accordance with the control procedure ti11 of the control section 19.

In addition, tables A, B, C, D, and E now have a large number of figures in Figure 3.
As shown in a>, (b>, (C), (d), and (e), the extension designation number XXXX, YYYY, ZZZZZ, WWWW, P
PPP, QQQQ, ...d3 and daytime receiving terminal AA
A, BBB, CCC, DDD, EIEE, FFF,
..., incoming call terminals AAA, BBB, AT1 (relay board 1), GGG, DS1 (station line display board), ATT2 (
Attendant 2), . . . Digits of designated extension number vi4. Let us assume that the day/night distinction DAY (u>) is memorized.

During the regular 01 operation, the control unit 19 first receives the designated extension number as shown in FIG. 1 (step 101),
It is determined whether the extension designation number as many as the number of digits of the extension designation number in table D has been accumulated (step 403), and if it has not been accumulated, the process returns to step 401 again.

For example, if the four digits of zzzz are entered, Table A is reached using a binary search method to determine whether there is a storage position for zzzz (step 405). If it does not exist, execute error processing (step 407), perform dial-in rank recovery processing (step 409),
Return to idle state (Idle). If the position of existence (=X) is a flag fin, read the state of table E and determine whether the real time is day or night.Step 411> If it is daytime, it corresponds to the position of existence (=X) of table B (1) -Rum Shinko end CCC
is read out (step 413). At night, table C
The receiving terminal A T T 1 corresponding to the existing position (=X)
is read out (step 415).

Thereafter, the terminating terminal CCC or ATTl must first determine whether it actually exists in the PBX (step 417).
), if it does not exist, performs dial-in rank recovery processing (step 409) and returns to idle state (Idle).
). If the called terminal exists, the state of the called terminal is determined (step 419).

If it is busy, step 4 as described above.
After the process of 09, the computer returns to the idle state (Idle). Idol-like! ! If it is 1 (Idle), the called terminal is called (step 421). It is then roughly determined whether the called terminal has responded (step 423). If you do not answer, the caller will continue to ring until you answer unless the called party hangs up. When a response is received, the bus between the incoming terminal and the dial-in trunk is turned on and a conversation is made as shown in FIG. 5 (step 425).
).

Also, the end of the call at the incoming terminal is monitored (step 427), and when the call is ended, the incoming terminal and the dial-in rank are restored (step 429), and the call is returned to an idle state (step 427).
). It is a matter of course that if the calling party disconnects first in steps 405 to 427, step 429 is executed and the process returns to the idle state.

In this way, with this embodiment, it is possible to introduce a dial-in service without worrying about the assigned specific telephone number obtained through the subscriber line, and it is also possible to implement a dial-in service without worrying about the specific telephone number assigned through the subscriber line. It is possible to easily receive a call at a station line display panel or relay stand under certain conditions.

[Advantageous Effects of the Invention 1] As detailed above, according to the present invention, night service class switching ( (manual and automatic) call processing can be easily performed. Further, when the extension number information corresponding to the extension number designation information is set to a certain specific condition, it is possible to easily have the call arrive at, for example, a station line display panel or a relay stand.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a private branch telephone exchange, and FIGS. 2, 3, 4, and 5 illustrate a private branch telephone exchange according to an embodiment of the present invention. no-b
Therefore, Fig. 2 is a functional block diagram showing the configuration of the main parts, Fig. 3 is a diagram without memory tables, and Figs. The flowchart shown in FIG. 6 is a diagram showing an outline of the Daicel inner service. 1 ・P B・Relay stand, 19...
- Control unit, 21... Storage unit, 29... Registration control means, 31... Day/night determination means, 33... Discharge control means. Figure 1 Figure 2 Figure 3 rσノ (b
) do e no (d)
(e norosende2hi 〒41 chi 1rL Eguchi] ku = ko Figure 5 Figure 6

Claims (2)

[Claims] (1) means for receiving an extension designation signal of the first predetermined digit obtained via the subscriber's line; a first storage means for storing whether the real time is day or night; and a daytime extension number of the second predetermined digit. and a second storage means for storing a night extension number of a second predetermined digit; means for searching the second storage means based on the extension designation number signal and determining the extension number of the second predetermined digit; and means for performing call processing on the extension terminal corresponding to the determined extension number. A private telephone exchange featuring: (2) Claim (1) characterized in that when the extension number information corresponding to the extension designation number information is set to a certain specific condition, the call is received on the station line display panel or the relay stand. Private branch telephone exchange listed.