JPH01293053A - Busy tone incoming connecting system - Google Patents

Abstract

PURPOSE:To selectively perform execution and refusal of busy tone incoming service in accordance with the originating subscribers and areas designated by a contracted subscriber by providing a controlling means which discriminates the propriety of the interruption by a third person in accordance with the busy tone incoming service when the telephone number of the third person is obtained. CONSTITUTION:When an incoming call is made from a third person while a contracted subscriber talks with a partner, a busy tone incoming controlling unit (CWU) 1 receives the telephone number (ID) of the new originating subscriber by means of a common line signal from a signal processing unit (SPU) 2 and instructs a selecting unit (ISU) 3 to check whether or not busy tone connection is permitted to the ID. The ISU 3 retrieves a relevant ID storing memory of the contracted subscriber in an ID storing memory unit (IMU) 5 and feeds back retrieved results to the CWU 1. The CWU 1 executed necessary control designated by the fed-back service class (registered ID permitting service, priority giving service, distance-wise permitting service, etc.) of the contracted subscriber. Therefore, the incoming service can be performed selectively in accordance with originating subscribers and areas.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a busy call connection system, particularly to a busy call connection system in a communication network in which a common line signaling system is adopted between a calling subscriber and a called subscriber. Regarding the connection method.

[Conventional technology]

Traditionally, with this type of call-waiting connection system, if a subscriber to a busy-call service receives a call from a third party while the subscriber is on the phone, the third party receives a ringtone and the subscriber receives the call. When a contract subscriber who hears the incoming call display sound interrupts and hooks, a third party and the contract subscriber are connected and can talk while the other party is on hold, and the contract subscriber can call again. When you hook, you will be returned to the connection with the person on hold,
This allows you to continue your previous call.

[Problem to be solved by the invention]

The conventional busy call connection method described above allows busy call connections from unspecified callers, so if the other party is connecting from a long distance, the other party may interrupt the call by interrupting the call. This method has the problem of incurring a fee loss, and furthermore, interrupting an important call during an important call may cause a call to be interrupted.

[Means to solve the problem]

The busy call connection system of the present invention provides a means for transmitting and receiving at least a telephone number of a calling subscriber via a telephone network from an exchange accommodating an originating subscriber to an exchange accommodating a called subscriber. A storage means for storing a busy call service class of a contracted subscriber for a call service, the telephone numbers of a plurality of subscribers, and the priorities of these subscribers, and when an incoming call from a third party is received during a call. a search means for searching the busy call service class, the telephone number of the calling party, and the third party's telephone number from the storage means; and the third party's telephone number is obtained from the searching means. and a control means for determining whether or not the third party can interrupt according to the busy call service.

〔Example〕

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

FIG. 1 is a block diagram of an embodiment of the present invention. In the figure, 1 is a busy call control unit (hereinafter referred to as CWU), 2 is a signal processing unit (hereinafter referred to as SPU), and 3 is a telephone number (hereinafter referred to as ID) selection unit (hereinafter referred to as ISO).
, 4 is an ID priority identification unit (hereinafter referred to as I PRU), 5 is an ID storage unit (hereinafter referred to as IMU), and 6 is an ID registration control unit (hereinafter referred to as IRU), each of which uses a common line signaling system. It is configured as a program unit of an electronic exchange.

FIG. 2 is a dial format diagram in which a subscriber who receives a busy call service accommodated in an electronic exchange to which the present invention is applied registers the ID of a caller who is allowed to receive a busy call, and FIG. 3 is a diagram of the registration format. It is a sequence diagram.

The sequence shown in FIG. 3 is carried out under the same control as other new service registrations in conventional electronic exchanges.

FIG. 4 shows the information stored in the electronic exchange to which the present invention is applied.
FIG. 3 is a configuration diagram of a D storage memory. The subscriber data indexing method is similar to the known electronic exchange subscriber data reading method.

Hereinafter, with reference to FIGS. 1 to 4, the registration of an ID that allows a subscriber to receive a busy call and the operation of controlling a busy call will be described.

There are two ways to register an ID to allow a subscriber to receive busy calls: registration at a telephone office reception counter and automatic registration by the subscriber using the telephone.The former is the same as when applying for a telephone subscription. This is done through the maintainer. In the latter case, the dialing format shown in FIG. 2 is used when a subscriber registers an ID. To register the first priority ID, dial the special number (
After IXY), dial one registration request number (0 dial), then dial one priority number (1, 2, ... dial, 1 is the highest priority,
In addition, if the maximum number of registrations requires two digits, enter the area code (two digits) depending on the last ID to be registered or the destination area.
(hereinafter referred to as MA) only. Figure 2 shows an example in which MA registration or ID registration is identified by the number of dial digits.
It is also possible to specify either MA or MA. Furthermore, if the registered ID does not allow incoming calls while busy, priority dialing is not necessary. Thereafter, by repeating the above-mentioned dial registration for the number of IDs to be registered in the same manner, registration of IDs (or MAs) that allow busy calls is completed.

Next, we will explain the operation of the busy call control.
If an incoming call from a third party occurs while the subscriber is on the phone,
CWUl is obtained from 5PU2 by common line signal,
Receive the new caller's ID (or MA and the same), and
Instructs SU3 to check whether the ID is allowed for connection of a busy incoming call.

15U3 searches the corresponding subscriber's II-) storage memory in the IMUS and sends the result back to the CWUI. C
The WUl executes control specified by the service class of the returned subscriber (registration ID allowed service, priority assignment service, distance-based allowed service, etc.).

If you are a subscriber to a registered ID permissible service,
If the new caller's ID is not registered, CWU1 requests the new caller to connect with a busy tone, and if the new caller's ID is registered, it requests conventional busy call control.

Next, if you are a subscriber to a prioritization service,
After searching for the ID of the new caller using the same operation as the registered ID acceptance service, CWUl gives the details of the caller on the other end of the call, which have already been obtained by 5PU2, to IPRU4, and sends the IM
Have the priority taken from U5 and compared with the priority of the new caller. If the priority of the ID of the other party during the call is higher than the priority of the ID of the new caller who interrupted, the call is continued and a busy tone connection request is made to the new caller. IDi of the other party during the call
If the priority is low, the conventional busy call control is requested. In addition, in the prioritization service, two types of conventional incoming call display tones are installed, one for high priority and one for low priority, and different incoming call display sounds are sent out depending on the priority of the call interrupter and the ID of the other party who is talking. It can also be configured to do so.

In addition, in the case of a contract subscriber to a distance-based service, the relationship between the contract subscriber and the other party on the call, and the relationship between the contract subscriber and the incoming call interruption consideration, or the ranking of the mutual distance or unit hourly call charge is MA. Connect by distinguishing the incoming call display tone.

Note that in the above explanation, the ISU3 and IPRU4 are configured as separate units, but the IMSU3 and IPRU4 are configured as the same unit.
It may be configured to control U5.

〔Effect of the invention〕

As explained above, the present invention provides a means for transmitting a caller's ID or MA to an electronic exchange in which a called subscriber is accommodated, in accordance with the calling area of the caller 1 desired by the subscriber. This has the advantage that the call waiting service can be selectively executed or rejected.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram of an embodiment of the present invention, Fig. 2 is a dial format diagram used in the present invention, Fig. 3 is a sequence diagram of telephone number registration of the present invention, and Fig. 4 is a diagram for the present invention. FIG. 2 is a configuration diagram of an ID storage memory stored in an electronic exchange. 1... Busy call control unit (CWU), 2... Signal processing unit (SPU), 3... ID selection unit (ISU), 4... ID priority identification unit (■P
RU), 5...ID storage memory unit (IM unit/
Figure 2 ■ Figure 3

Claims (1)

[Claims] An electronic exchange having transmitting and receiving means for transmitting at least the telephone number of the originating subscriber via a telephone network from the exchange accommodating the originating subscriber to the exchange accommodating the terminating subscriber,
A storage means for storing a busy call service class of a contracted subscriber for a busy call service, telephone numbers of a plurality of subscribers, and priorities of these subscribers, and receiving an incoming call from a third party during a call. a search means for searching the busy call service class, the telephone number of the calling party, and the telephone number of the third party from the storage means; and the telephone number of the third party is obtained from the search means. and control means for determining whether or not the third party can interrupt in accordance with the busy call service.