JPS61173566A - Incoming transfer system - Google Patents

Abstract

PURPOSE:To specify transfer destinations corresponding to originating subscribers by allowing an incoming transfer contactor subscriber to register previously telephone numbers of originating subscribers and transfer destination telephone numbers corresponding to them. CONSTITUTION:An exchange 4 fins an incoming translation word and a transfer destination registration table according to the telephone number DN of the incoming transfer contractor subscriber A and the extracts a transfer destination telephone number TRSDNB on the basis of the telephone number ODNX of an originating subscriber X. The number is translated by using the extracted dial number and connected to a transfer destination subscriber B. Similarly, when an oscillating subscriber Y dials the telephone number DN of the incoming transfer contractor subscriber A, a transfer destination telephone number TRSDNC is found and a connection with a transfer destination subscriber C is made. When an originating subscriber Z dials the telephone number DN of the incoming transfer contractor subscriber A, it is connected to no transfer destination or a predetermined transfer destination because no transfer destination telephone number corresponding to the subscriber Z is present in the exchange 4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a call transfer system in which the call transfer destination corresponds to the originating subscriber.

[Background of the invention]

In the conventional call forwarding system, one call forwarding contract subscriber is associated with one forwarding destination in advance.
An incoming call request to a subscriber who is registered for incoming call forwarding is forwarded to the associated forwarding destination. In other words, all calls requested to a subscriber under a call transfer contract are unconditionally transferred to the same transfer destination. Therefore, all incoming calls to a call transfer subscriber are transferred to the same transfer destination, regardless of the intention of the call transfer subscriber and regardless of the originating subscriber. However, as a subscriber to a call forwarding contract, you may be able to change the forwarding destination of an incoming call to suit the calling subscriber, or
It is also true that, depending on the originating subscriber, there may be cases where the incoming call does not want to be forwarded or may want to be forwarded to the same forwarding destination. You can change the forwarding destination of incoming calls depending on the originating subscriber, or the incoming call may not be forwarded depending on the originating subscriber.
Alternatively, it would be desirable to implement an incoming call forwarding system in which calls are forwarded to the same forwarding destination, but the reality is that this has not yet been realized.

Note that Japanese Patent Application Laid-open No. 14760/1983 describes an incoming call transfer method that allows multiple transfer destinations to be specified.
The forwarding destination cannot be changed for the originating subscriber.

[Purpose of the invention]

It is an object of the present invention to change the call forwarding destination in accordance with a specific originating subscriber, and to make it possible for incoming calls from other than the specific originating subscriber to not be forwarded or to be forwarded to the same forwarding destination. There is a method to provide.

[Summary of the invention]

For this purpose, the present invention registers a calling subscriber identification code and a corresponding forwarding destination in an exchange accommodating a subscriber to a call diversion contract, and When a subscriber receives a call, the calling subscriber is identified and the incoming call is transferred to a transfer destination corresponding to the calling subscriber. If you want to register the calling subscriber identification code and forwarding destination only for a specific calling subscriber.

Incoming calls from a specific originating subscriber are forwarded to the forwarding destination corresponding to that subscriber, while incoming calls from other than the specific originating subscriber are not forwarded or are forwarded to the same forwarding destination depending on control by the exchange. This makes it possible to make it happen.

[Embodiments of the invention]

In the following, the present invention will be explained with reference to a telephone. FIG. 1 shows an example switching system for explaining the incoming call transfer method according to the present invention, and FIG. 2 shows a calling subscriber identification code and its corresponding transfer. This figure shows the configuration of a transfer destination registration table memory in which destinations are registered.

First, to explain from Figure 1, A in the figure represents a subscriber with a call transfer contract, x and Y represent a calling subscriber whose forwarding destination is specified, 2 represents an arbitrary calling subscriber, and B and C represent subscribers. A indicates each subscriber to whom a call to which an incoming call is requested is transferred. Also, O
D N x r○D N)'t○DNz, DN, T
R8DNB and TR8DNc are subscribers X and Y, respectively.
, Z, A, B, C phone numbers. In this example, a method is adopted in which the telephone number of the calling subscriber is used as the identification code of the calling subscriber, but it goes without saying that a password may also be used. Furthermore, 1 and 2 are calling subscribers x and y.

2, 5 and 6 are destination subscriber B,
3 is a relay exchange, and 4 is an exchange that accommodates subscriber A who has a call transfer contract. Furthermore, reference numeral 7 denotes a storage device in which transfer destination information when an incoming call is received by subscriber A under a call transfer contract is stored.

Further, in FIG. 2, TERTLR indicates an incoming translation word corresponding to the telephone number of a subscriber under a call transfer contract, and TR3RGT indicates a transfer destination registration table in which transfer destinations corresponding to calling subscribers are stored. By storing the address of the forwarding destination registration table in this incoming call translation, it is possible to obtain the forwarding destination registration table from the telephone number of the call forwarding contract subscriber, and further to obtain the forwarding destination telephone number from the calling subscriber's telephone number. It is possible. Incidentally, the forwarding destination registration table in this example is for call forwarding contract subscriber A, where ○DN indicates the calling subscriber's telephone number and TR5DN indicates the forwarding destination telephone number for that telephone number. It has become.

Now, 1. When using the call forwarding method according to the present invention, when calling subscriber The explanation is as follows.

That is, first, when the telephone number DN of the call transfer contract subscriber A is dialed from the originating subscriber Not only the DN but also the telephone number 0DNX of the originating subscriber X is sent to the exchange 4. At exchange 4, the received call transfer contract subscriber A
After obtaining the incoming translation word and the transfer destination registration table using the telephone number DN of the subscriber X, the transfer destination telephone number TR8DNB is extracted from the telephone number 0DNX of the originating subscriber. Thereafter, the extracted dial digits are used to translate the number, and connection to the transfer destination subscriber B is established. In the same way, when calling subscriber Y dials the telephone number DN of subscriber A who has a call forwarding contract, the forwarding destination telephone number TR5DNc is requested and the connection is made to forwarding destination subscriber C. That's why. In addition,
Telephone number DN of call transfer contract subscriber A from originating subscriber Z
is dialed, the exchange 4 does not have a forwarding destination telephone number for the calling subscriber 2, so the call is not connected to any forwarding destination, or it is forwarded to a predetermined forwarding destination like other calling subscribers. This is something that will happen.

When forwarding calls while matching the calling subscriber's phone number and forwarding destination phone number in this way, only incoming calls from a specific calling subscriber will be handled by the calling subscriber specified by the call forwarding contract subscriber. will be forwarded to the forwarding destination.

Although the present invention is described in connection with a telephone in the above sections, it is clear that the present invention can also be applied to facsimile reception and various data reception.

〔Effect of the invention〕

As explained above, in the case of the present invention, a call forwarding contract subscriber specifies a forwarding destination for the calling subscriber by registering in advance the telephone number of the calling subscriber and the corresponding forwarding destination telephone number. This has the effect of improving serviceability.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example switching system for explaining the call transfer method according to the present invention, and FIG. 2 is a call transfer contract in which a calling subscriber identification code and a corresponding transfer destination are registered. FIG. 3 is a diagram showing a transfer destination registration table for subscribers. 1 to 6... Exchange, 7... Storage device, A... Call transfer contract subscriber, B, C... Transfer destination subscriber, x, y,
z...Calling subscriber, ODN...Calling subscriber phone number, DN...Call forwarding contract subscriber phone number, TR8DN
...Forwarding subscriber phone number.

Claims (1)

[Claims] The calling subscriber identification code and the forwarding destination corresponding to the identification code are registered in the exchange that accommodates the call transfer contract subscriber, and the calling subscriber transfers the call transfer contract to the call transfer contract subscriber. An incoming call transfer system characterized in that when an incoming call is received, the exchange determines the forwarding destination from the originating subscriber based on the subscriber's identification code, and then transfers the incoming call to the forwarding destination.