JPH0636624B2 - Night line incoming call control system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a night office line incoming call control system.

[Conventional technology]

Conventionally, in this kind of storage program control type exchange, only some of the station lines used in the daytime can be received at the time of switching to the night time zone, and other station lines are switched and connected to the teleguide device. I was operating like this. In addition, the number of station lines that can be used at night was fixed regardless of the number of night receptions.

[Problems to be solved by the invention]

In the above-mentioned conventional night office line incoming call control method, the number of office lines that can be used at night is fixedly determined irrespective of the number of night receptions. Even if the night reception desk is empty and the incoming call reception work is possible when the subscriber is in use, all other incoming line calls will be teleguided because other station lines have been switched to the teleguide device. However, there is a drawback that the service is deteriorated for the subscribers of the station line especially when the urgent incoming calls of the night station line are concentrated due to an accident or the like.

[Means for solving problems]

According to the present invention, a plurality of night reception desks for receiving incoming calls on the night office line, a teleguide device for sending a predetermined guide message to the station line, and the station line on the side of the teleguide device and the night reception board side. In a storage program control type exchange equipped with a switching circuit for switching connection, the night reception desk of the same number or less as the number of station lines that can be used at night, monitoring means for monitoring the air-blocking state of each night reception desk, and night use possible Control for switching and connecting the night-usable station line to the night reception board side by driving the switching circuit when the monitoring means outputs the existence of the night reception board in an empty state as a monitoring result when receiving an incoming call from the station line There is provided a night office line incoming call control system characterized by comprising:

〔Example〕

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

FIG. 1 is a block diagram showing an embodiment of an incoming call control system for a night office line according to the present invention.

In the figure, a stored program control type exchange (hereinafter referred to as EP
BX is an extension telephone (hereinafter STA) 10 housed in a main switch (hereinafter NW) 30, a night reception desk (hereinafter NAT)
21, 23 and switches s of the switching circuit (hereinafter SW) 50
Via w ₁ , sw ₂ , sw ₃ , and so on, a public network station line L ₁ ,
L _{2, L} 3, ~ and interfaces to the public line trunk (hereinafter COT) 41, 42, 43, ~ and the central controller (hereinafter CC) 60 which controls a predetermined sequence control in EPBX
, COT 41, 42, 43, ... And sw ₁ , sw ₂ , s
A main storage device (hereinafter M) having an association table with w ₃ , ...
EM) 70, a teleguide device (hereinafter TG) 80 for sending a guide message to the public network via the SW 50, and C
A switching control unit (hereinafter referred to as SWC) 90 that causes each switch of SW50 to perform a switching operation according to an instruction from C60,
Each of T21 and T22 has a memory (hereinafter, Ma and Mb) 22 and 24 that stores an empty state, and CC60 is M.
The contents of a and Mb are constantly monitored.

Next, the operation of this embodiment will be described.

At the time of nighttime, the two public office lines L ₁ and L ₂ that interface with the COTs 41 and 42 can receive incoming calls, and the other office lines L ₃ and ...
Shall be switched and connected. That is, COT41,
42 is connected to the office lines L ₁ and L ₂ via sw ₁ and sw ₂ (states shown by solid lines), and the other office lines L ₃ to are sw _3.
(State shown by broken line), is switched to TG80 via.

In this state, _one of the office lines L ₁ and L ₂ , for example, the office line L
_{When 1} is used by the STA 10 via sw ₁ , COT 41, and NW 30, only an incoming call from the central line L ₂ can be accepted even if both NATs 21 and 23 are idle.
In other words, even if two NATs can accept an incoming call to a local line, only one line can be used at this time, and even if there are two incoming calls to the nightline at the EPBX at the same time, only one of them can be accepted. It is inconvenient because it does not exist.

The present embodiment avoids the above-mentioned inconvenience by making it possible to receive as many station lines as there are vacant night reception desks. That is, the CC 60 constantly monitors the contents of the Ma 22 and Mb 24, confirms that the NATs 21 and 23 are both in an empty state, and when the COT 41 is known to be used by the STA 10, the MEM 70 to the COT 43
Read the switch sw ₃ corresponding to
A control instruction is issued to switch w ₃ to the state shown by the solid line. Therefore, the office line L ₃ is switched and connected to the COT 43 via sw ₃ (state shown by a solid line), and the two office lines L ₂ and L ₃ can be received by the night reception desk at night. When the use of the station line L ₁ by the STA ₁₀ is finished, the CC 60 knows this and issues a control command to the SWC 90 so that sw ₃ becomes the state shown by the broken line.

〔The invention's effect〕

As described above, according to the present invention, the control for enabling the incoming call from the station line to the night reception desk is constantly monitored by monitoring the air-closed state of the all night reception desk, so that the number of station lines commensurate with the reception work is always maintained. Since it is possible to receive calls at the reception desk at night, there is an effect that stable operation can be performed with respect to an incoming call on the central line.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an incoming call control system for a night office line according to the present invention. 10 ... Extension telephone (STA), 21, 23 ... Night reception desk (NAT), 22, 24 ... Memory (Ma, Mb), 30
... Main switch (NW), 41, 42, 43 ... Station line trunk (COT), 50 ... Switching circuit (SW), 60 ... Central control unit (CC), 70 ... Main memory unit (MEM), 80 ...
Teleguide device (TG), 90 ... Switching control unit (SW
C).

Claims (1)

[Claims] 1. A plurality of night reception desks for receiving an incoming call from a night office line, a teleguide device for sending a predetermined guide message to the station line, and a switching of the station line between the teleguide device and the night reception desk side. In a storage program control type exchange equipped with a switching circuit to be connected, the night reception desk of the same number or less as the number of nighttime available station lines, a monitoring means for monitoring the air-blocking state of each night reception desk, and a nighttime available station Control means for driving the switching circuit to switch and connect the night usable station line to the night reception board side when the monitoring means outputs the existence of the night reception board in an empty state as a monitoring result when receiving an incoming call from a line An incoming call control method for a night office line characterized by comprising: