DE3239881A1 - Method for a call storage and announcement device - Google Patents

Abstract

A call storage and announcement device for telephone switching systems serves to record messages and to transfer them automatically when a subscriber connection is busy or is free but unanswered. The stored messages are transferred via an alphanumeric display and/or synthesised speech. For this purpose, a device to store message texts and to compose texts with a speech recognition and evaluation chip and a telephone number memory is linked via a common controller to control chips for dialling information reception and transmission.

Description

Procedure for a call history

and announcement device The invention relates to a method for a Call storage and announcement device in telephone exchange systems.

It is known to send messages to a subscriber by means of an answering machine to leave by giving the calling party the opportunity for a limited time to speak messages on a recording medium. These possibilities exist with an accessible, free subscriber line. In the case of an occupied Subscriber connection is not given the possibility of leaving messages, if no additional call procedures are available, such as paging systems.

The invention is based on the object of creating a device the possibility of leaving Notifications offers.

This object is achieved by the invention, which is described in the characterizing Parts of the claims is set out.

It is explained in more detail below with the aid of a block diagram.

The call storage and announcement device, in the following text as ASA device called, is in both private branch exchanges and local exchanges applicable.

The ASA facility is via its incoming input K with the group dialing level or the line selection level of an exchange or connected to a private branch exchange; your going-directed exit G is with the assigned call finder or the preselection level and the assigned subscriber circuits coupled.

The ASA device consists of a controller S of a device for storing announcement texts and for compilation of texts ASR, which contains a tone generator, a speech recognition and evaluation module SAB, a common call number memory RS and for the incoming side a through-connection DSK and a control for the assignment of the ASA device and the electoral acceptance SWA as well as a connection for the outgoing side DSG and from a control for the occupancy and choice of SBW together.

The ASA facility allows a calling participant to leave of messages for a busy or temporarily unavailable subscriber connected to the ASA facility. Depending on the equipment, the Telephone system with the help of speech recognition or by means of signals of a multi-frequency code method the call number of the calling subscriber and that of the subscriber to be called are saved. Does the calling party have a telephone with bilingual or alphanumeric keyboard, messages can also be saved.

Dial when busy or when a free subscriber cannot be reached the calling subscriber has the call number of the ASA facility and is informed about the dialing record SWA and the through-connection DSS in connection with the controller S with the device for compiling texts ASR connected. Using a synthetic voice announcement the calling party is informed that a message is for another party can be saved for a limited time or until after the transmission. After sending an identifier, preferably an audio signal, the the calling subscriber is in turn communicated by a synthetic voice message that he must first enter their own phone number.

There are two input options; At a remote sprerhapp.arat rn according to the alphanumeric keyboard wi T ^ by means of the keyboard, the multi-frequency code signals releases, entered the rut number and recorded directly by the call number memory RS.

The second possibility is the verbal input by the telephone subscriber announces the individual digits of his phone number one after the other. Using the speech recognition and Evaluation sbaute in SAB are the announced digits in storable characters implemented and given via the control device S in the call number memory -RS.

After the first period of time for entering the number of the calling subscriber is prompted to enter the Number of the subscriber to be called given. For entering the phone numbers the calling and the calling subscriber will each have a fixed period of time made available and their beginning and end indicated by audible signals.

After the entry, the calling subscriber receives the from Voice system SAB recognized numbers and stored by the number memory RS transmitted as alphanumeric display and / or in synthetic speech. With an announcement text is the calling subscriber the procedure for eventual necessary corrections communicated, for example in the form that with corrections a "yes" was to be said, whereupon the ASA device switched to recording again will. If a "No" is spoken, the storage process is complete and a final signal, e.g., an audible signal, is sent. Instead of spoken Code words are also code characters can be used, which by means of the keypad of the telephone set be sent.

Does the calling party have a bilingual telephone or alphanumeric keyboard and display, he is given the opportunity to by choosing a fixed the code number placed further message texts to leave behind. To do this, the participant sends his code number and then receives the Prompt to enter text using the keyboard within a certain period of time undertake by the device for announcement and for the compilation of texts ASR is evaluated. As you type, the telephone set displays the text just entered is displayed so that corrections can be recognized immediately are. The length of the message that can be entered is limited by the memory space and is related to the participant in the form of the number of available lines its alphanumeric display. One to be sent by the calling party The second code number marks the end of the entry.

This second code number must also be entered if there is no other Message when the number was left. It marks the end of each the input and causes the line loop to be separated.

In the call number memory RS each call is on a reserved place stored in a special memory. This is the capacity of the phone number memory RS dimensioned such that m out of n call storages are possible, where m is the memory size in bit and n the number of stored digits of the call numbers of the call end and the subscriber to be called.

After a specified time cycle, the controller S is the Through-connection DSG for the outgoing side activated and the control for allocation and selection SBW activated. From the call number memory RS are successively the stored digits of a subscriber to be called are read out and sent. After the participant reports, the ASÅ device sends an announcement text. By a spoken one The person called gives the code word and the choice of a code number Subscriber to recognize that he is ready to receive the stored message gain weight. This is then transmitted to him in synthetic language and additional If there is an alphanumeric display, message texts are shown line by line with specified service life is displayed. All saved messages are repeated once, with the beginning and the The end of a message. Are all messages sent, these are deleted in the call number memory RS of the ASA device.

If the called subscriber does not answer, the ASA device switches itself on and starts another call attempt after a certain time.

The called subscriber answers and indicates that he is the Does not want to receive the message, for example by not choosing the Code number or after the synthetic announcement by speaking the word "No", the subscriber is automatically notified of a new call by the ASA facility.

A deletion of the messages left behind and the assigned The phone number is automatically initiated after a certain number of unsuccessful attempts. This deletion was made to the subscriber who saved the message in the phone number memory RS entered when occupying the ASA facility before the storage procedure by a Announcement text communicated.

In the ASA facility, special interconnection under a common number or a subscriber's own special number subscribers to be called are connected in parallel, the parallel connection depending on can be expanded according to traffic load and needs.

Furthermore, telecommunications connections with additional equipment, e.g. fax machines, Printers, answering machines etc. that send their own signals to the calling organ for a automatic recording of information send, an automatic recording the stored message texts of the ASA facility in a simple manner enables.

The call number memory RS is for receiving the signal code as a ready sign of the called subscriber to receive the stored message with a provided corresponding evaluation device. The saved message discontinued once without repetition.

This evaluation device for additional devices is arbitrarily simple Expandable way to evaluate different signal codes. So are also for Time not yet set signal key at any time by adding easier Retrofit kits can be used by the ASA facility.

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Claims (9)

Claims method for a call storage and announcement device in telephone exchanges, characterized in that the device has Control modules for voting (SWA, DSK) and voting (SBW, DSG), a device for storing announcement texts and for compiling texts (ASR), one Speech recognition and evaluation module (SAB) and a phone number memory (RS) has, which are operated via a common control (S) and that the device saves messages when the line is busy or when the subscriber cannot be reached, then automatically establishes a connection to the inaccessible participant via a connection (DSG) and a control for the allocation and selection (SBW) builds up the stored Messages as alphanumeric display and / or in synthetic speech on request transmitted and after the transmission the stored messages and the stored Deletes the called subscriber's number automatically. 2. The method according to claim 1 t, characterized in that the call number memory (RS) for a limited period of time by signals of a multi-frequency code method Saves phone numbers. 3. The method according to claim 1, characterized in that the speech recognition and evaluation module (SAB) converts spoken digits into storable characters and stores it in the call number memory (RS). 4. The method according to claim 1, characterized in that by character code a bilingual or alphanumeric keyboard over the storage device of announcement texts and for the compilation of texts (ASR) messages compiled and in one of the stored call numbers entered immediately before Memory of the call number memory (RS). 5. The method according to claim 1, characterized in that by the Device for storing announcement texts and compilation of texts (ASR) Audio signals as start, end and acknowledgment signals for the recording of files to be saved Messages are sent. 6. The method according to claim 1, characterized in that the to be stored Messages after input for correction purposes to the person who initiated the storage Participants are displayed and / or transmitted in synthetic language and only after a spoken code word or one with the keypad of a telephone set sent code characters are stored in the call number memory (RS). 7. The method according to claim 1, characterized in that the call storage and announcement device the stored call numbers in a fixed time cycle dials and after a predetermined number of unsuccessful calls the stored message and deletes the assigned phone number. 8. The method according to claim 1, characterized in that under one common call number for several subscribers to be called or subscriber-specific special call numbers are switched in parallel in the call memory and announcement device. 9. The method according to claim 1 and 8, characterized in that at Telephone systems with additional devices after the arrival of a signal tone stored messages can be sent for recording without repetition.