JPS6130788B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a processing method for an "outgoing trunk busy queuing service" in an automatic private branch exchange that is a multiprocessor type and a stored program control type.

First, “outgoing trunk busy queuing service”
An example will be explained. When an extension user of an automatic private branch exchange dials the trunk group access number provided for the trunk group of the central office line or private line in order to make an outgoing connection to the central office line or private line, if the trunk is all busy, the extension Busy is sent.

By hooking while listening to the busy tone, the extension person is reconnected to the register trunk, and a dial tone is sent to the extension person. In this state, the extension user dials the registration code for the "outgoing trunk busy queuing service," then hangs up the handset and waits for the outgoing trunk to become empty. Next, when the outgoing trunk of the trunk group for which the "outgoing trunk busy queuing service" is registered becomes empty, a ringing signal is sent to the extension, and when the extension user answers, the extension and the empty outgoing trunk are connected. is connected.

An object of the present invention is to reduce the processor processing time required for this service when the above-described "outgoing trunk busy queuing service" is applied to a multiprocessor type storage program electronic exchange. The goal is to realize distributed implementation of the service registration memory used in this service.

In order to achieve these objects, the present invention provides a multiprocessor storage program controlled electronic switching system with an outgoing trunk busy queuing registration memory for each processor and a data transfer control device and a data bus from each processor. By providing a queuing call count memory that can be accessed via The configuration is such that the outgoing trunk busy queuing registration memory is read out.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention;
FIG. 2 is a data configuration diagram of the outgoing trunk busy queuing registration memory, and FIG. 3 is a configuration diagram of the queuing call count memory.

In a multi-processor storage program controlled electronic exchange, as shown in FIG.
1, 17 to control the extension 10 or outgoing trunk 16 divided and accommodated in each processor unit, and control the other processor or switch network via the data transfer control devices 15, 21, 23 and data bus 26. Data is transferred and exchange processing is performed with the device 22.

In FIG. 1, the processor 12
When it is determined that 0 has dialed the registration code of the outgoing trunk busy queuing service, the outgoing trunk group number, extension accommodation position information, and registration rank number are written in the outgoing trunk busy queuing registration memory 14. The registration rank number is used to read the registered data from the earliest registered data according to the registration rank number when reading the registered data. A configuration diagram of the outgoing trunk busy queuing registration memory 14 is shown in FIG.

Next, the processor 12 transfers data to the data transfer control device 1.
5 and the data bus 26 to the data transfer control device 25, and the number of queuing calls for each trunk group number in the queuing call number count memory 24 is incremented by one. A configuration diagram of the queuing call count memory 24 is shown in FIG.

In FIG. 1, the processor 18 sends control data to the data transfer control device 25 via the data transfer control device 21 and data bus 26 to initiate a queuing call when the outgoing trunk 16 is changed from a busy state to an empty state. The number of queuing calls having the same trunk group number as the trunk group number of the outgoing trunk 16 to be emptied is read from the number count memory 24. Next, the processor 18
If the read number of queuing calls is 0, it performs processing to empty the outgoing trunk 16. or,
If the read number of queuing calls is other than 0, the processor 18 reads the registration data from the outgoing trunk busy queuing registration memory 20, and inputs the trunk group number of the outgoing trunk 16 of the read registration information and the trunk group of the outgoing trunk 16 to be emptied. Compare with the number. As a result of the comparison, if they do not match, the next registered data is read based on the registration order number of the read registered data, and its trunk group numbers are compared. If the trunk group numbers do not match even after reading all the registered data registered in the outgoing trunk busy queuing registration memory 20, the processor 18 transmits the data via the data transfer control device 21 and the data bus 26. The control data and trunk group number are then sent to the data transfer control device 15.

The processor 12 reads the control data and trunk group number from the data transfer control device 15, then reads the registration data from the outgoing trunk busy queuing registration memory 14, and compares the two trunk group numbers. If the read trunk group numbers match, the processor 12 extracts the extension accommodation position information from the registration data and transfers it to the peripheral control device 1.
1 to identify whether the extension is idle or busy. When the processor 12 identifies that the extension is empty, the processor 12 connects the data transfer control device 15 and the data bus 26.
Sends trunk connection control data to the data transfer control device 21 via the switch network control device 21, and sends switch network control data to the data transfer control device 25 to cause the switch network control device 22 to control the switch network, The extension 16 is made to send a calling signal.

Although the present invention has been described above using an example in which the number of processors is two, it goes without saying that the number of processors is not particularly limited to this example.

In addition, by configuring the outgoing trunk busy queuing registration memories 14 and 20 as shown in FIG. 4, when data is registered in this memory, in addition to the trunk group number, extension accommodation location information, and registration priority number, the called party number is also stored. By registering, the called party number of registered data can be automatically sent from the sender device as soon as the outgoing trunk becomes empty and the outgoing trunk and the extension are connected.

As described above, the outgoing trunk busy queuing process applied to the multiprocessor storage program controlled electronic exchange according to the present invention is carried out using a queuing call count memory that stores the number of queuing calls generated by all processors for each trunk group. By providing an outgoing trunk busy queuing registration memory for each processor, each processor reads out the queuing call count memory during outgoing trunk recovery processing, and if there is no queuing call count, it is sent to its own processor and other processors. Since the outgoing trunk busy queuing registration memory provided is not read out, the processing time of each processor can be reduced; and the outgoing trunk busy queuing registration memory is provided for each processor; As the number of processors increases, as the number of processors increases, the outgoing trunk busy queuing registration memory can be expanded, which has the advantage of saving memory and being economical.

Although the present invention has been described above with respect to one preferred embodiment thereof, this is merely an illustrative example, and it goes without saying that the present invention is not limited only to the embodiment described herein.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one implementation of the present invention, FIG. 2 is a data configuration diagram of the outgoing trunk busy queuing registration memory of FIG. 1, and FIG. 3 is a data configuration of the queuing call number count memory of FIG. 1. Figure, 4th
The figure is a data configuration diagram of another example of the queuing call count memory. 10...extension telephone, 16...outgoing trunk, 1
1, 17... Peripheral control device, 12, 18... Processor, 13, 19... Program memory, 1
4, 20... Outgoing trunk busy queuing registration memory, 15, 21, 23, 25... Data transfer control device, 22... Switch network control device, 24... Queuing call number count memory,
26...Data bus.

Claims (1)

[Claims] 1. In a program-controlled electronic switching system with multiprocessor type storage, an outgoing trunk busy queuing registration memory is provided for each processor, and the number of queuing calls that can be accessed from each processor via a data transfer control device and a data bus. By providing a count memory, each processor reads the number of queuing calls from the queuing call number count memory when it detects an empty outgoing trunk, and only when there is a number of queuing calls, the processor reads the number of queuing calls provided for each processor. An outgoing trunk busy queuing processing method characterized by reading out a trunk busy queuing registration memory.