JPS60152163A - Incoming connection system - Google Patents

Abstract

PURPOSE:To attain the duplicated number service by identifying a sub-number incoming even after a duplicated number service stop is operated, switching a call signal and transmitting a sub-number incoming display signal so as to display the incoming of sub-number. CONSTITUTION:When a calling subscriber 9 dials a telephone number of an incoming subscriber 6, a number group 4 transmits subscriber allocation position information and sub-number incoming information to a connection marker 3. thus, the connection marker 3 connects an intra-office trunk 7 and the incoming subscriber 6 by controlling a main link 5 and also transmits the sub-number incoming information to the intra-office information to the intra-office trunk 7. When the intra-office trunk 7 receives the sub-number incoming information, a call signal is switched, the transmission of a sub-number incoming display signal is prepared, and when the connection end information is received, the sub- number incoming display signal calls the incoming subscriber 6.

Description

[Detailed description of the invention] <Outside lights for industrial use> The present invention relates to a terminating connection scheme for dual number services.

<Prior art> In the conventional dual number service, incoming calls are connected only after the service start operation, incoming calls to the main number 119 (front number) are sent to the talkie guide, and incoming calls to the sub number (back number) are connected to the incoming call and to the main and sub number. Although incoming calls are identified, after the service is stopped, there is no distinction between incoming calls from the main number and sub-numbers, and the same connection is used, so the receiving subscriber can tell whether the call is coming from the main number or the sub-number. The drawback was that it was not possible to determine whether or not there was.

<Object of the Invention> The present invention naturally provides for
Even after the service is stopped, the system can identify incoming calls from the sub-number, switch the ringing signal, and send out an incoming call display signal from the sub-number.
It is an object of the present invention to solve the above-mentioned drawbacks and to provide a terminating connection method that enables a dual number service that displays an incoming call to a sub-number to the terminating subscriber.

<Structure of the Invention> In order to achieve the above object, the present invention provides a means for identifying an incoming call using a sub-number (back number) in a dual number service of a common control automatic converter, a means for transferring the identification information, The present invention is characterized in that it includes means for switching the calling signal upon receiving the transferred identification information and transmitting a sub-number incoming call display signal to the called subscriber.

<Example> Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a relay system diagram showing a first embodiment of the incoming call connection system of the present invention. The first embodiment shown in the figure consists of an incoming trunk 1, an incoming register 2, a connection marker 3, a number group 4, a main link 5 and a terminating subscriber 6.

In such a configuration, when a call is received from another station without being disconnected, the incoming trunk 11 register 2, connection marker 3, and number group 4 are activated in a known manner. When the number group 4 is activated by the connection marker 3, it translates the telephone number received from the connection marker 3 and extracts the main link 5d subscriber accommodation location information. At this time, it is determined whether the call is incoming from a sub-number, and when it is determined that the call is incoming from a sub-number, the subscriber accommodation location information and the incoming sub-number information are sent to the connection marker 3. Note that if the incoming call is not identified as a sub-number call, only the subscriber accommodation location information is sent.

When the connection marker 3 receives the subscriber accommodation location information and sub-number incoming call information, it controls the main link 5 and connects the incoming subscriber 6 to the incoming trunk 1, and sends the sub-number incoming information via the incoming register 2. , and send it to the incoming trunk l. When the incoming trunk 1 receives the sub-number incoming call information, it switches the calling signal and prepares to send the sub-number incoming call indication signal, and when it receives the connection completion information from the connection marker 3 by a known method, it sends the sub-number incoming call indication signal. to call the called subscriber 6.

FIG. 2 is a relay system diagram of a second embodiment of the present invention.

The second embodiment shown in the figure has an originating subscriber 9, an originating register 8
, a connection marker 3, a number group 4, a main link 5, a called subscriber 6, and an intra-office trunk 7.

In this arrangement, first, when the calling subscriber 9 picks up the handset, it is connected to the calling register 8 in a known manner, and after listening to the dial tone, the telephone number of the called subscriber 6 is input. When dialing, a connection marker 3 and number group 4 are activated in a known manner.Number group 4 performs the same operation as in the first embodiment, and sends subscriber accommodation location information and sub-number incoming call information to connection marker 3. Send.

When the connection marker 3 receives the subscriber accommodating location information and sub-number incoming call information, it connects the already selected in-house trunk 7 and the incoming subscriber 6 by controlling the main link 5 using a known method. The sub-number incoming call information is sent to the trunk 7 within the local office via the trunk block connector. When the local trunk 7 receives the sub-number incoming call information, it switches the calling signal and prepares to send out the sub-number incoming display signal.

When the connection marker 3 completes the connection between the terminating subscriber 6 and the local trunk 7, it then connects the originating subscriber 1 using a known method.
and the intra-office trunk 7, and sends connection completion information to the intra-office trunk 7. When the local trunk 7 receives the connection completion information, it calls the called subscriber 6 with a sub-number call display signal.

<Effects of the Invention> As explained above, the present invention, when receiving a call from a sub-number, displays the incoming call to the sub-number to the receiving subscriber, thereby allowing the user to identify the specific party (
It is possible to determine whether the call is from someone else (relatives, friends, etc.) or from an unspecified person, which has the effect of improving service.

[Brief explanation of drawings]

FIG. 1 is a relay system diagram showing a first embodiment of the incoming call connection system of the present invention, and FIG. 2 is a relay system diagram showing a second embodiment of the invention. 1...Input trunk 2...Input register 3...H continuation marker 4...Nanno (group 6...main link
6... Incoming subscriber 7... Local trunk 8...
Outgoing register 9... Outgoing subscriber applicant NEC Corporation

Claims (1)

[Claims] Regarding the dual number service of a common control automatic exchange, means for identifying an incoming call using a sub-number (back number), means for transferring the identification information, and receiving the transferred identification information. 1. An incoming call connection system, characterized in that it is provided with means for switching an alternate ringing signal and transmitting a sub-number incoming call display signal to a called subscriber.