JPS6181064A - Originating subscriber discriminating system - Google Patents

Abstract

PURPOSE:To discriminate originating subscribers of terminating calls from specific subscribers, leased lines, and privately owned lines, terminating calls due to special service, or the like by comparing preliminarily registered originating subscriber numbers and a terminating dial number of the originating side when a call comes to an extension subscriber. CONSTITUTION:In case that the extension subscriber 3 registers a specific subscriber 2 as the object of originating subscriber discrimination, the number of the specific subscriber 2 is dialed following hooking after the extension subscriber 3 is connected to an originating register trunk (ORT)5 through a channel switch (SW)4 by dial tone connection, and thereby, extension subscriber number information 920 and originating subscriber information 921 are registered in an originating subscriber number register memory (RM)92. When a call comes from the specific subscriber 2 to the extension subscriber 3 in this state, a central controller (CC)7 compares originating subscriber information 910 with originating subscriber information 921 for extension subscriber number information 920 read out from the RM92 on the basis of terminating subscriber information 911. Since both information coincide with each other, the CC7 transmits a call signal IR2 from a signal trunk (RGT)82 to the extension subscriber 3 through the SW4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a caller identification system, and more particularly to a caller identification system for automatic telephone exchanges that identifies the type of calling party by the ringing signal of an incoming call to an extension subscriber. [Prior Art] Conventionally, in this type of caller identification system, only calls received from a central office line are identified by changing the ringing tone to determine whether the call is from a central office line or an extension.

[Problem that the invention seeks to solve]

In the conventional caller identification method described above, incoming calls from specific subscribers, leased lines, private lines, or special services are ringed in the same way as incoming calls from general extension lines. The disadvantage is that the type of caller cannot be identified.

[Elaborate means of solving problems]

The caller identification system of the present invention is a caller identification system for an automatic telephone exchange that identifies a calling party based on a ringing signal of an incoming call to an extension subscriber. a storage means, a caller number registration storage means for storing the caller number obtained by the registration operation of the extension subscriber, and a comparison means for comparing the dialed number from both storage means and the registered caller number. [Example] Next, the present invention will be described with reference to the drawings.

@ Figure 1 is a block diagram showing an embodiment of the caller identification system of the present invention, and Figures 2 (a) and (b) are respectively the caller number storage memory (hereinafter referred to as SM) in Figure 1.

It is a memory configuration diagram showing an example of a caller number registration memory (hereinafter referred to as KM).

In FIG. 1, an automatic telephone exchange is used for general domestic subscribers 1.
*Subscriber 2. A communication path switch (hereinafter referred to as 8W) 4 that accommodates extension subscribers 3 and an originating register trunk (hereinafter referred to as 0RT)
) 5, an internal trunk (hereinafter referred to as 10T) 6, a central control unit (hereinafter referred to as 00) 7, and a main memory device (hereinafter referred to as MM) 9t-
All of these devices are generally known. SW4 has a ringing signal trunk (RG
T) Scratch 81 and 82 are connected and RGT81
．． 82 each has one different ringing signal,
, IR, (for example, the on/off intervals of the calling signal are different) 0 Also, the MM9 stores all dialed numbers from the caller (for example, specific subscriber 2) 5b
i91 and an RM92 that stores the caller number obtained by the registration operation of the extension subscriber 3, and the i/C, 5M91 stores caller number information corresponding to the caller, as shown in FIGS. 910 (911, for example, the number of specific subscriber 2) and called party information 911 (for example, the number of extension subscriber 3) are stored, and R
In M92, extension subscriber number information 920 (for example, extension subscriber number 30) is registered corresponding to 15110 registered persons, and next caller information 921 (for example, the number of specific subscriber 2) is stored.

The operation of this embodiment will now be explained.

For example, when extension B account number 3 registers for specific subscriber 2-payer caller identification, extension number 3 uses a known dial tone connection.
After being connected to T5 via w4'f, dialing a specific number (registration operation) followed by tucking (registration operation), as commonly known as 3, to 几M92. Extension subscriber number information 920 and caller information 921 are stored and registered. In this state, when a call is received from specific subscriber 2 to extension JJD person 3, a well-known intra-office connection is performed, but CC7 uses ORT s. Based on the dialed number from the specific subscriber 2, the caller number information 910 (ie, the number of the specific subscriber 2) and the called party information 911 (ie, the number of the extension subscriber 3) are stored in 8M91 of the MM9. Next, the CC 7 reads out the caller number information 910 and the box M92 based on the called party information 911', and outputs the friend extension subscriber number information 920 (i.e., the extension subscriber number 30), the corresponding caller information 921 (i.e., the specific subscriber number 2), and the called party information 911'. number).

Since the image information matches here, the CC 7 causes the call signal IR,=i from the GT 82 to be sent to the extension subscriber 3 via the SW 4.

If a call is received from general extension subscriber 1 to extension subscriber 3, as a result of the above comparison, caller number information 910 (i.e. general extension number of subscriber 1) and caller information 921 (i.e. specific subscriber number) CC number 2) does not match.
7 selects GT 81e, and extension subscriber 3 receives a call signal from GT 81 via SWd.

In this embodiment, the identification operation for the general extension subscriber 1 and the specific subscriber 2 was explained as the calling side.
By adding or changing the registered contents to the leased line,
Incoming calls from private lines, incoming calls from special services, etc. can be identified by different ringing signals.

〔Effect of the invention〕

As explained above, the present invention, when an extension subscriber receives a call, compares the pre-registered caller number with the dialed number of the caller, thereby calling the specific subscriber.
The caller can be identified even when receiving calls from leased lines, private lines, or special services, which has the effect of widening the range of identification.0

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the caller identification system of the present invention, and FIGS.
There is a memo 'J?W configuration diagram showing an example of the caller number information memory and caller number registration memory in Figure (). 1... General extension subscriber, 2... Specific subscriber. , 3... Extension subscriber, 4... Call path switch (SW), 5... Voice register trunk (ORT), 6... Local office trunk /ri(IO
T), 7...Central control unit (CC), 81.8
2...Ring signal trunk (RGT), 9.
...Main memory ffl (MM), 91...
...Caller number storage memo U (8M), 92...
- Caller number registration memory (几M). \, 8′. Agent: Patent Attorney Uchihara Hi, /゛ ~ ′ Inspection / Concave Voice 2 Figure

Claims (1)

[Claims] In a caller identification system for automatic telephone exchanges that identifies the type of caller based on the ringing signal of an incoming call to an extension subscriber,
a caller number storage means for storing the dialed number of the calling party; a caller number registration storage means for storing the caller number obtained by the registration operation of the extension subscriber; and the dialed number and the registration from both storage means. 1. A caller identification method, comprising: a comparison means for comparing a given caller number with a given caller number.