JPS61154344A - Selective incoming rejection system - Google Patents

Abstract

PURPOSE:To allow an extension to select two kinds of incoming signals depending on applications by providing a memory selecting kinds of calls to attain rejection of an incoming call. CONSTITUTION:A memory M14 is an incoming rejection memory storing incoming refusal when the level of the incoming call is logical 0 corresponding to the incoming subscriber and storing incoming rejection when logical 1, and a memory M25 is a call type incoming rejection memory storing incoming enable refusal with respect to part of call types when the level of the incoming to the incoming subscriber is logical 0 and storing incoming rejection with respect to all call types when logical 1. in writing 1 or 0 to a location of a specific dial number of memories M14-M3 in response to the specific number, the selection such as incoming rejection, part of incoming refusal or incoming rejection release is attained depending on the call type. Even when a general talking is desired to be rejected during a conference such as incoming rejection for extensions and incoming passable for trunk lines, a talking a customer is attained.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a selective call rejection system in a storage program controlled electronic exchange.

(Problems to be solved by the prior art and the invention) Conventional electronic exchanges have the drawback that when dialing a call rejection special number, all call types are rejected, and calls cannot be rejected for specific call types. Ta.

An object of the present invention is to provide a selective call rejection method that allows an extension user to select two types of call rejection according to the purpose by expanding the conventional memory for call rejection. .

(Structure of the Invention) According to the present invention, in a storage program type electronic exchange, there is provided a first memory for storing, in response to each called subscriber, whether or not incoming calls to the called subscriber are permitted or rejected.

a second memory for storing whether incoming calls to the incoming subscriber are allowed for some call types or rejected for all calls 11;
A selective call rejection method is provided, which is characterized in that a third memory is provided for storing whether the call can be received while the call is being rejected or whether the call cannot be received while the call is being rejected, depending on the type of call received.

(Example) Next, the present invention will be explained with reference to the drawings.

FIG. 1 shows a block diagram of an embodiment of the present invention, in which 1 is a terminating subscriber, 2 is a switch network (SW), 3 is a central control unit (CPU), and 4 is a terminating subscriber corresponding to the terminating subscriber. Incoming call rejection memory Ml that stores whether incoming calls are accepted or rejected.
(first memory), 5 is an extended call rejection memo 4! that stores whether incoming calls to the called subscriber are allowed for some call types or rejected for all call types. jjMz (second memory), 6 is a call type-specific call rejection memo that stores whether it is a special number for canceling call rejection or whether the call cannot be received while the call is being rejected. JMs (third memory).

FIG. 2 is a block diagram of a call rejection memory (Ml in FIG. 1) used in a conventional exchange. Main memory (Ml) 4
corresponds to 1 bit and 1 subscriber, and when an extension call is received, it is searched by the receiving subscriber's accommodation location, and if the result 1III' is set, the call is rejected, otherwise, the call is accepted as normal processing. ing.

The memory shown in FIG. 3 is an extended call rejection memory (M2 in FIG. 4) that was newly installed to implement the present invention.The memory configuration is the same as the call rejection memory M1 shown in FIG. The meaning is completely different, and the memo I shown in Figure 2
If If 1 N is set in JMI, water mesori M2 is enabled, and if 1111' is set in this memory M2, all call types are rejected regardless of the call type, and lIO is set. '' indicates that some call types can be received.

The memory shown in Fig. 4 is a call type-specific call rejection memory (M4 in Fig. 1) that is held as part of the station data, and if it is possible to receive a call for some call types even if the call is rejected, this memo! JM4 (1
(corresponding to Pit 1 call type) by the incoming call type, and the result is 11.
11 indicates that calls cannot be received, and 1101 indicates that calls can be received.

Now, if the special numbers 1 "I11" is written in the own subscriber accommodation position of Ml, but in the memory M2 shown in FIG.
If you dial ``I Y'', write 111. Also, if you dial the call rejection cancellation special number nz++,
1 in the own subscriber accommodating position of the memory M1 shown in FIG.
lollt-write.

Now, when a call arrives at the extension in this state, as mentioned above, it first refers to the memory M shown in Figure 2, and if the call is being rejected, refers to the memo IJMZ shown in Figure 3, indicating that some of the calls can be received. If there is, the memory M4 shown in FIG. 4 is referred to, and as a result, it is determined whether or not to reject the incoming call. Note that if it is determined that the incoming call is rejected based on the above-mentioned determination, the calling party is notified by sending out a restriction tone or the like.

(Effects of the Invention) As explained above, the present invention makes it possible to selectively reject incoming calls depending on the call type. This has the effect of preventing a decline in service to the customer even if the customer wishes to refuse the request.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of an embodiment of the present invention, and FIG. ~FIG. 4 is a configuration diagram of an example of a memory used for this. DESCRIPTION OF SYMBOLS 1... Incoming subscriber, 2... Switch network, 3... Central control unit, 4... First memory, 5... ...Second memo 1c 6...
...Third memory. ,,□ Agent Patent Attorney Susumu Uchihara (,5;

Claims (1)

[Claims] In a storage program type electronic exchange, there is provided a first memory for storing, in response to a called subscriber, whether or not the call can be received by the called subscriber, and a call can be received for some call types to the called called subscriber. The present invention is characterized in that it is provided with a second memory for storing whether incoming calls are rejected for all call types, and a third memory for storing whether incoming calls can be received while incoming calls are being rejected or whether incoming calls can be received while incoming calls are being rejected, depending on the incoming call types. Selective call rejection method.