JPS63275253A - Distributing system for announce sound of telephone exchange system - Google Patents

Abstract

PURPOSE:To simultaneously change the announce sound of announce devices in respective subscriber exchanges by distributing announce sound from an announce sound source device equipped in a centralized side exchange to the announce devices equipped in the subscriber line exchanges. CONSTITUTION:The announce sound source device 50 is provided with the sound sources 51(1)-51(n) of plural announce sounds which are used in respective exchanges in common, and the announce devices 60(1)-60(K) are provided with storage devices 61(1)-60(K) which store the announce sounds so that they can be rewritten. For rewriting the announce sounds of the announce devices 60(1)-60(K) in respective subscriber line exchanges, the announce sounds are transmitted from the announce sound source device 50 in the centralized side exchange 5 to respective announce devices 61(1)-60(K) through communication lines 7(1)-7(K), and the contents of the storage devices 61(1)-61(K) in respective announce devices are rewritten. For changing the control of the round sources in the announce devices equipped in respective subscriber lin exchanges, all can simultaneously be changed from the centralized side exchange.

Description

[Detailed Description of the Invention] [Summary] Announcement sound is distributed from an announcement sound source device provided in a central exchange to an announcement device provided in a subscriber line exchange, thereby making an announcement on the announcement device of each subscriber exchange. This is an announcement sound distribution method for telephone switching systems that changes the sound all at once.

[Industrial application field-]

The present invention relates to an announcement sound distribution system for a telephone switching system.

In telephone switching systems, there is an announcement device that allows subscribers to hear announcements such as ``This telephone is currently out of service'' or ``What number should you call back?''.

This announcement sound is generally common to all regions, that is, it is common to subscriber line exchanges provided in each region. Therefore, considering the trend toward centralized maintenance of exchange systems, it is desired that maintenance such as rewriting the announcement sound of the announcement device be performed centrally at one location rather than in each region.

[Conventional technology]

Conventionally, there are two methods for letting subscribers hear announcement sounds.
There is a standard method. One method, as shown in FIG. 6, is a system in which each subscriber line exchange is provided with an independent announcement device, and the rewriting of the announcement sound is performed separately for each subscriber line exchange.

The other type, as shown in FIG. 7, is equipped with an announcement device only in one exchange (centralized exchange).

The remaining exchanges receive the announcement tone from the announcement device of the centralized exchange via the telephone line.

This is a method that allows subscribers to listen to it. in this case.

A separate trunk is assigned to each of the plurality of announcement tones accumulated by the announcement device and transmitted.

[Problem that the invention seeks to solve]

In the former method, when attempting to rewrite the content of the announcement sound of the announcement device, it is necessary to make the same change on all exchanges, but since the rewriting is performed independently on each exchange, it is necessary to make the same change for the rewriting work. There is a problem in that the maintenance person has to go to each exchange with a tape recorder that records the changed announcement sound, which takes time and effort, and it is not possible to change the announcement sound all at once.

In addition, in the latter method, it is sufficient to change the announcement sound only at the central exchange, but as the number of types of announcement sounds increases, the number of expensive trunk lines must also increase, and the announcement equipment There is a problem in that when the traffic to the network becomes high, the trunk line cannot be used for normal call processing connections. Furthermore, a tape recorder or the like is kept running continuously as the source of the announcement sound from the central exchange, so that if there is a request to send an announcement sound from the subscriber line exchange, the announcement sound can be heard. There is also the problem that the announcement sound does not always start from the beginning, and it is not easy to find the beginning.

[Means for solving problems]

FIG. 1 is a block diagram of the principle according to the present invention.

In the present invention, there is provided a central exchange 5 equipped with an announcement sound source device 50, and a communication line 7 (l) connected to the central exchange 5.
) to 7(k), each of which is provided with an announcement device 60(1) to 60(kl); It is a system announcement sound distribution method.

The announcement sound source device 50 includes sound sources 501) to 51 tn of a plurality of announcement sounds commonly used in each subscriber exchange.
+ is provided, and announcement devices 60(1) to 60(k)
A storage device that stores announcement sounds in a rewritable manner 6
1 (1) to 61 (k) are provided, and the centralized side exchange 5
By distributing the announcement sound of the announcement sound source device 50 from the subscriber line exchanges 6(1) to 6 (kl) to the subscriber line exchanges 60(1) to 60 (kl announcement devices 601) to 61 (kl) An announcement sound distribution method for a telephone switching system is provided, which is configured to allow all announcement sounds held in a telephone exchange system to be rewritten all at once.

[For production]

Announcement devices 60(1) to 60(
The rewriting of the announcement sound in g)) is performed from the announcement sound source device 50 of the central exchange 5 to each announcement device 60(1).
~60 colors) via communication lines 7(1) to 7(k), and the storage device 61 of each announcement device
(1) to 61 (performed by rewriting the contents of kl).

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a block diagram showing a telephone exchange system implementing an announcement sound distribution system as an embodiment of the present invention.

In the figure, 1 is the subscriber line exchange, 2 is the central exchange, and 5
Both are connected via a communication line 3. Although only one subscriber line exchange l is shown in the figure, there are actually a plurality of subscriber line exchanges l, each of which is connected to the central exchange 2.

The subscriber line exchange 1 is connected to the network 10. Central control device 1
1. Announcement outfit fi12. Trunk 13. Console 14. The line concentrator 1 includes a line concentrator 15 and the like.
5 accommodates a plurality of subscriber telephones 16. In addition, the central exchange 2 is connected to the network 20. Announcement sound source device 2
2. It is composed of trunks 23, 24, etc.

The announcement sound source device 22 has a plurality of announcement sound sources 22 (
1) to 22(n). The announcement device 12 has a calling function and a call receiving function, and can rewrite its own accumulated announcement sound with the announcement sound received from the announcement sound source device 22 by the single call receiving function. The announcement sound source device &22 collectively manages the announcement sounds of a plurality of subscriber line exchanges l located in a certain area.

FIG. 3 is a block diagram showing the announcement device 12 in detail. Announcement device 12 is call originating/receiving interface 12
0. Control unit 121. Sound source memory 122 (1) ~
122 (configured including nl). The calling/receiving interface 120 can be connected to the trunk 13 via the network 10. The control unit 121 sends and receives control signals to and from the central control unit 11 via the network IO. Sound source memories 122 (1) to 122 (nl are memories for storing different announcement sounds, respectively, so that announcement sounds sent via the single call/reception interface 120 can be stored under the control of the control unit 121. The announcement tones stored in each can be sent to the subscriber telephone 16 via the network 10.

The operation of the above embodiment will be explained below. first.

A procedure for simultaneously rewriting the announcement sounds of the announcement devices 12 of each subscriber line exchange 1 will be explained.

The central exchange 2 is connected to the sound source 22 of the announcement sound source device 22 (
The contents of (b) are changed and the changed announcement sound is sent to each subscriber line exchange 1 via the communication line 3. The format of the announcement signal to be sent out in this case consists of a header part and an announcement tone part as shown in FIG.
2 and the number information of the changed announcement sound. The content of the changed announcement sound is placed in the announcement sound section.

When the subscriber line exchange 1 receives this announcement signal, it identifies from the header section that it is a signal destined for the announcement device 12, and connects it to the announcement device 12. The announcement device 12 receives the announcement signal through the calling/receiving interface 120, and transmits the header portion of the announcement signal to the control unit 12.
Send to 1. The control unit 121 analyzes the contents of the header section to learn the number of the changed announcement sound, and sends the announcement sound of the received announcement signal to the sound source memory 122 corresponding to the number to be stored. This is a control signal S (11
carried out by This allows the announcement sound to be changed at the same time in each subscriber line exchange 1.

Next, a procedure for recovering the contents of the memory 122 of the announcement device 12 when the contents of the memory 122 of the announcement device 12 are lost because the power of each subscriber line exchange 1 is temporarily turned off for maintenance purposes will be described. In this case, a command is issued from the console 14 to the control unit 121, and the control unit 121 sends a signal in the format shown in FIG. This signal consists of the station number and the number of the announcement tone that requires rewriting. When the central exchange 2 receives this signal.

Necessary announcement sounds are sent back from the announcement sound source device 22 to the subscriber line exchange 1, and thereafter, the announcement sounds are stored in the announcement device 12 by the method described above.

〔Effect of the invention〕

According to the present invention, when changing the content of the sound source of the announcement device provided in each subscriber line exchange.

Changes can now be made all at once from the central exchange, saving maintenance personnel the trouble of visiting each exchange for changes. Furthermore, even if the number of types of sound sources for the announcement device increases, there is no need to increase the number of trunks to accommodate the increase in types of sound sources, which is economical. Furthermore, it becomes possible to cue the beginning of the announcement sound individually for each announcement device.

[Brief explanation of drawings]

FIG. 1 is a block diagram of the principle of the present invention, and FIG. 2 is a block diagram showing a telephone exchange system implementing an announcement sound distribution system as an embodiment of the present invention. FIG. 3 is a block diagram showing details of the announcement device. FIGS. 4 and 5 are diagrams showing the formants of signals sent and received between exchanges, and FIGS. 6 and 7 are diagrams explaining the conventional system. 1-Subscriber line exchange 2.-Central exchange 3-.-Communication line 10.20-Network 11-Central control unit 12-Announcement device 13, 23.24--Trunk 14-Console 15-Concentrator 16-Telephone set
22-Announcement sound source device 22(1) to 22(
nl-sound source 120-call/receive interface 121-control unit

Claims (1)

[Claims] A central exchange (50) equipped with an announcement sound source device (50).
) and communication lines (7(1) to
A plurality of subscriber line exchanges (6(1) to 6(k)) connected to each other via 7(k)), each equipped with an announcement device (60(1) to 60(k)) An announcement sound distribution system for a telephone exchange system comprising: the announcement sound source device (50) having a plurality of sound sources (51(1) to 51(1) to
51(n)), and the announcement devices (60(1) to 60(k)) are equipped with a storage device (61(1)) for rewritably storing the announcement sound.
) to 61(k)) are provided, and the central exchange (5) to the plurality of subscriber line exchanges (6
By distributing the announcement sound of the announcement sound source device (50) to (1) to 6(k)), the announcement device (61(
An announcement sound distribution system for a telephone exchange system configured such that the announcement sounds held in 1) to 61(k)) can be rewritten all at once.