JPH01293054A - Audible sound sending system - Google Patents

Abstract

PURPOSE:To express the state of an exchange system which cannot be transmitted sufficiently by means of audible sounds only by announcement by alternately sending digital audible sounds and digital announcement to the telephone set of an originating subscriber trough the same channel. CONSTITUTION:When the telephone set (SUB) 1 of a subscriber makes an originating call and a central controlling section (CC) 8 discriminates that digital audible sounds and digital announcement must be sent alternately to the SUB 1, the CC 8 sends the alternately sending interval information of the digital audible sounds and digital announcement to be sent to a control section (CNT) 6 through a channel controlling section (SPC) 7. The CNT 6 respectively designates a digital audible sound generating source (TNG) 3 and digital announcement generating source (ANG) 4 to generate the digital audible sounds and digital announcement to be sent and, at the same time, a selection circuit (SEL) 5 alternately selects the digital audible sounds and digital sounds and connects them to a PCM highway in accordance with the alternately sending interval information. Therefore, the subscriber can alternately hear the audible sounds and announcement.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an audible sound transmission system, and more particularly to an audible sound transmission system for transmitting an audible sound to a telephone of a calling subscriber in a time division telephone exchange.

[Conventional technology]

FIG. 2 is a block diagram showing an example of a conventional audible sound transmission system.

In FIG. 2, conventionally, audible sounds to subscribers are transmitted from a digital audible sound generation source (hereinafter referred to as TNG) 3a that stores digital audible sounds encoded by PCM to a time division network (hereinafter referred to as TDNW) 2. is sent to the calling subscriber's telephone (hereinafter referred to as SUB) 1 via the . Similarly, announcements are sent from a digital announcement source (hereinafter referred to as ANG) 4a that stores digital announcements encoded in PCM to S via TDNW2.
Sent to UB 1.

[Problem to be solved by the invention]

In the conventional audible sound transmission method described above, the transmission of digital audible sound and the transmission of digital announcements are each sent to the subscriber's telephone using separate communication paths on the dedicated PCM highway. However, if digital audible tones and digital announcements are to be sent alternately to the subscriber's telephone, it is necessary to change the connection of the communication path. Therefore, there is a drawback that the load on the call path control section and the central control section of the time division telephone exchange increases.

[Means to solve the problem]

The audible sound transmission method of the present invention is an audible sound transmission method of a time-division telephone exchange controlled by a central control unit, and includes an audible sound storage means for storing digital audible sound encoded in PCM; announcement storage means for storing digital announcements; selection means for selecting the digital audible sound and the digital announcement; the audible sound storage means; and the announcement storage means.

a control means for controlling a selection means, and an audible sound pattern to be sent from the audible sound storage means and an audible sound pattern to be sent from the announcement storage means under the control of the control means receiving instructions from the central control unit. announcement pattern, and alternately selects the digital audible tone and the digital announcement by the selection means and sends them to the time division network, thereby transmitting the digital audible tone and the digital announcement to the calling subscriber's telephone. It is characterized by being sent out alternately with digital announcements.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

In FIG. 1, this embodiment selects TNG3 for storing digital audible sounds encoded by PCM, ANG4 for storing digital announcements encoded by PCM, and digital audible sounds and digital announcements. A selection circuit section (hereinafter referred to as SEL) 5, and a TNG3. AN
G4,5EL5 The subscriber's telephone (hereinafter referred to as SUB
(hereinafter referred to as TDN)
2, a communication path control section (hereinafter referred to as SPC) 7 that controls the CNT 6 and TDNW 2, and a central control section (hereinafter referred to as CC) 8 that controls the 5PC 7.

Next, the operation of this embodiment will be explained.

When there is a call from SUB 1 and CC8 determines that digital audible sound and digital announcement should be sent alternately to UBI 3, CC8 sends the digital audible sound and digital announcement that should be sent to CNT 6 via 5PC7. Sends out alternate sending interval information.

Based on the information from CC8, CNT6 connects TNG3 and AN.
At G4, the digital audible sound and digital announcement to be transmitted are respectively designated, and at 5EL5, the digital announcements are alternately selected and connected to the PCM highway according to the alternate transmission interval information. As a result, the alternately selected digital audible tones and digital announcements are sent to SUB 1 via TDNW2.

SOB 1 subscribers can hear alternating audible tones and announcements repeated at regular intervals.

The interval is determined by the alternate transmission interval information from the CC8, but the program within the CC8 also allows for the transmission of single information of audible tones or announcements.

〔Effect of the invention〕

As explained above, the present invention can announce the status of the switching system that cannot be sufficiently conveyed by the audible tone alone by alternately sending digital audible tone and digital announcement to the calling subscriber's telephone on the same communication channel. This has the effect of being able to be expressed through ment. Also,
Since connection switching of communication paths is not performed on the time-division network when digital audible sounds and digital announcements are alternately transmitted, there is also the effect of reducing the load on the central control section.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing an example of a conventional audible sound transmission system. 1...Subscriber telephone fi (SUB), 2...Time division network (TDNW), 3.3a...Digital audible sound source (TNG), 4.4a...Digital announcement source (ANG), 5... selection circuit section (SEL), 6-... control section (CNT), 7,
7a-Speech path control unit (SPC), 8... central control unit (CC). Way 1 Figure

Claims (1)

[Claims] In an audible sound transmission system of a time division telephone exchange controlled by a central control unit, an audible sound storage means for storing digital audible sounds encoded in PCM, and an announcement device for storing digital announcements encoded in PCM. storage means; selection means for selecting the digital audible sound and the digital announcement; and the audible sound storage means;
It has an announcement melt storage means and a control means for controlling the selection means, and the audible sound pattern to be sent from the audible sound storage means and the announcement storage are controlled by the control means receiving instructions from the central control unit. By specifying an announcement pattern to be transmitted from the means, and alternately selecting the digital audible tone and the digital announcement by the selecting means and transmitting the same to the time division network, An audible sound transmission method characterized in that a digital audible sound and the digital announcement are alternately transmitted.