DE1958221A1 - Method and circuit arrangement for telecommunications, in particular telephone exchanges, in which special service facilities are provided for incoming calls - Google Patents

Description

Procedure and circuit arrangement for telecommunications, especially telephone switching systems, in which special service facilities are provided for incoming calls.

The invention relates to a method and a circuit arrangement for telecommunication systems, in particular telephone switching systems, with central control and central storage in which the call numbers of the calling subscribers automatically are determined, and in which special service facilities for incoming calls to Subscribers are provided, such as call forwarding, telephone break, telephone order service etc.

A large number of special services are known for such systems. With a grace call, the first 4 to 7 calls to the called subscriber are suppressed, and only when the caller waits longer will a connection be established.

The telephone break prevents any call from being made to the participant; possibly be the calls are forwarded to an announcement device or answering station. At the notification service all calls are answered by an announcement device or an answering station Telephone order service or call forwarding to an announcement device, a Diverted to a place or a representative connection.

There are also other services, especially for private branch exchanges known. For example, for participants with the appropriate authorization, a Call waiting or intrusion on existing connections possible. At central Answering machines or dictation machines will be used by others page Awarded text is only reproduced for certain participants.

All of these services - and others not listed here - are from the authorization of the called party or the calling party depending on the respective special service to participate. This authorization is given to the respective radio signaling system by the switching staff determined by preparatory allocation of a special service facility or in particular in systems with central control and central storage in one storage cell noted along with the type of special service.

For special services that should only be fully effective temporarily, such as e.g. during the telephone break or the telephone order service, is added to Start of this time by the switching staff or by the special service participant on the j0-line even the number of the subscriber line or announcement device to which the connection is made is to be forwarded, and, if applicable, the time at which the participant himself again the Wants to take calls, stored in another cell.

With every incoming call, iJ-i is built up in this way System the dialed phone number with the saved phone numbers from on special services connected subscribers are compared and, in the event of a match, the specified subscribers Special service carried out appropriate switching action. This has the disadvantage that Important calls, pern calls, etc. not even with subscribers who have just been switched off lead to a conversation, because the one called is even from the representative line Participants cannot be reached without special measures.

It is true, for example from the German Auslegeschrift 1 014 601, known, by dialing a code number the call diversion for the respective Invalidate the call; every register of the office must for this purpose a get an additional relay copied. He also notices Calling only that a subscriber cannot be reached if a call is subject to payment has been set up for the representative connection, or a special audio signal draws his attention to this power.

Then he must, if the office is appropriately equipped and he the Code number knows, establish a new connection. That requires additional effort in the system, additional dialing work by the calling subscriber and additional knowledge, what he has to do.

When a special service subscriber on his telephone or telex connection cannot be reached, up to now he had the option of canceling the incoming call to divert to a predetermined connection. But if a family member or another company employee has an important conversation with someone in particular Participant expected can either forward all calls to The incoming call cannot be made and the person concerned has to be at home or stay in the company for so long, or this call will also lead to a position redirected where the person is not staying. Reach in any case not all calls the subscribers for whom they are intended.

The redirecting of calls is restricted by the fact that certain attenuation values for the entire connection must not be exceeded. As a result, a call diversion is possible via non-de-attenuated lines, for example fi via cross-connection lines in private branch exchanges or electrically long lines, only possible to a limited extent. As a result, in most cases there will be a diversion to neighboring offices or even not allowed to other places at all, even if the possibility only in some cases is not given.

A participant whose machine is used a lot must expect that only part of the incoming calls blushes him.

The others are lost because the calling participants join the most connection attempts hear the busy tone and therefore often give up. However, among the connections that have not been established or have not been established in time also important or urgent calls, which might be less important cannot reach the participant. For such palls the officer has on Operator station usually has the option to intrude on meetings and to offer the more important (higher quality) ones; this is a dormant participant Privilege not given, unless he has intrusion authorization in a private branch exchange.

However, this authorization is only effective within your own system and cannot be exercised in public offices, for example. Self if a participant is expecting an important conversation, he has no way of leaving To find out whether this call is present, so that he can disconnect the existing connection could.

In the case of answering machines or dictation machines centralized in the office the stored information can be intercepted or requested by those authorized to do so can. According to known methods, key figures or tone frequencies are dialed given into the participant's microphone, due to which a lock on the device is released and the stored content is played back. But that is with additional dialing work connected or awkward because a specific tone generator is required that possibly still have to measure the length of the tone.

The object of the invention is, in the case of special services, of the above and similar type to avoid the disadvantages of the known method and the special service switching measures for incoming calls depending on the wishes of the special service subscriber or the telecommunications management to jam more variably. In particular, it should be be possible, certain calling subscribers special, the respective special service appropriate to assign authorizations or specific call forwarding to impede.

This is achieved according to the invention in that simultaneously with the phone number of a special subscriber who uses a special service wants, phone numbers and / or outside line codes of calling subscribers are also saved whose calls are to be treated differently from those of the other subscribers, and that for this purpose also the call number of the caller for each incoming call and / or its exchange code is compared with the stored numbers.

This process is particularly easy to carry out in systems in which anyway the call numbers of the calling subscriber independently and constantly determined if necessary, also be transferred to the target office.

The method according to the invention has the advantage that the calls Expecting special service subscribers can determine for themselves which authorization they have to certain dormant persons.

In this way an intrusion or a penetration becomes one Unreachable subscribers not as a special right of individual privileged People, rather than one given by the respective participant himself Law.

If the special service participant expects an important conversation for him, he does not need to do without a break in the phone. He can confidently do less Have an important conversation as often and for as long as you like, because he knows the expected one Connection comes about in any case. When single people in the family or having a preferred conversation partner is not necessary for every person a dedicated line to be provided when your calls to different operator sets should be diverted, and there is no need to notify the called party and a request to call you back as soon as the person you want to know about this call. For them Telecommunications management There is also the advantage that a callback or multiple connection attempts become superfluous with the counter and lines for the repeated construction of the the same connection can be used without it being possible to charge charges. Because not only subscriber numbers are marked as authorized, but the administration can also effectively prevent code numbers from offices, that calls are transferred over those lines that are connected in series with a too big. Attenuation would result, e.g. unreinforced long cables with other unreinforced long lines. Transferring other calls outside of your own exchange area but are built up unhindered. This outside line code to be excluded can also can be obtained from the first digits of the identified subscriber number.

For all of these special duty types, the subscriber at rest needs not to find out that temporarily granted him a special authorization became.

The operation of such a special service is based on the Drawing explained in more detail.

A number of subscribers Tn are connected to a telecommunications exchange. This switching consists in a known manner of a number of dialers or couplers, of which only two, K1 and K2, are indicated here. The opening of the plant is controlled by a Markorer M, which is not shown here in addition to others Facilities also have an identifier ID assigned to them.

This switching system is directed or via neighboring offices Mutual lines Ltg connected.

Two of the participants are entitled to carry out the special service, namely those labeled STn1 and STn2. The Plant a query place P1, for example a telephone order service plate, Test cabinet, or service telephone, etc. In addition, an announcement device AG is available, that contains one or more announcement tracks. Other devices, such as central Answering machines, Diltiergeräte etc. are also available, but in the drawing not shown.

The marker M is connected to a central memory via a coupler K3 Sp connected in which a number of memory cells Szl to Szn are included. A comparator Vg is also assigned to the Marlderer M.

The two special service participants shown have the authorization save your special duty types and times yourself in a known manner. These Authorization is noted in one of the switching facilities. If now the Special service subscriber STnl does not want to be disturbed by phone calls, so be it because any other participant would have an important message to convey to him the call number of this subscriber is stored in the central memory Sp in a memory cell, for example in Szi, with the order that the first five calls are to be suppressed. This information can also be provided by the officer on site Pl to be put into memory.

However, since this participant still has an important call from a business partner expected, its phone number is also identified with a corresponding identifier noted in a memory cell.

As soon as a call over the line or a subscriber Tn of one's own office arrives, then through in identifier ID or a corresponding facility of the office of origin first of all the number of the calling party established.

At the same time, the dialed number is accepted. Both numbers are then compared in the Sielamt with the memory content of the memory Sp. If the number of the special service subscriber SUn1 is included, the connection is prepared a Rufabzähl- and suppression device. Provides the comparator even the availability of the number of the call ends firmly, so these institutions become but not activated and the call arrives at the special service subscriber. However, if the call number of the dormant person is not from; it is saved or not with the membership code to the called number, the named special services begin to work. While the call is suppressed, the caller receives an announcement or a special hearing symbol.

The owner of a shop in whose premises the SXn2 is located, goes home after business hours and wants all further calls to be made to him be redirected home0 The accountant is still awaiting a report from one of the branches. In this Palle, the subscriber's phone number is stored in the memory STn2, the phone number of the connection in the business owner's apartment and de The phone number of the branch concerned is saved. With incoming calls all but those diverted from the branch to the specified set; the expected calls reach due to the identification of the phone number of the Callers directly to the business premises.

All other possible services are handled in a similar manner. So the special service subscriber SXn2 can, in addition to rerouting calls in his Also arrange for the branch to call the accountant's private phone appears in his private apartment.

Is the connection of this special service participant during business hours always busy because there are so many calls to be had, the owner of the Connection S? N2 also has the option of storing the phone number of an important in memory Sp Note the customer or supplier whose calls the new conversation occurs the existing connection switches on, with an announcement or a note if necessary is coupled into the existing connection. The less important conversation can can now be terminated more quickly so that the other comes about.

The central memory Sp can also be equipped with a clock U, the duration of a special service or the privileges of a caller a time recorded in a memory cell Sz. This privilege but can also after a certain number of calls, e.g. after one, be terminated. This number is measured by a counter Z.

Since the special service participants also have the opportunity to use their Diverting calls to an answering machine in order to record them there, it is desirable listen to these recordings from another location if necessary. To this Purpose is in the memory Sp, the call number of the special service subscriber, the call number of the answering machine to which all calls are to be diverted, as well as the phone number of the person Subscriber who is to be authorized to speak to each other allow.

Finally, let us assume that the described switching sci a private branch exchange to which several other such systems are connected via unamplified Cross-connection lines are connected. One of the special service participants of this System causes the incoming calls to be sent to him via such a cross-connection line to a telephone set to a other switching system connected. As long as the calls for this subscriber in-house Office arise, the maximum permissible attenuation value can not be maintained but for calls that are already arriving via cross-connection lines. To now such To prevent call forwarding, the management of this telephone system in the Memory Sp notes which subscribers have the outside line code of a remote exchange with the subscribers identified by the outside line code of the other remote office are recognizable, must not be connected to earth. Should now stab such a fit of office numbers are located in the memory Sp so the coming together of such Connection prevented.

Listed above are a number of special services associated with Advantage of the method and the circuit arrangement according to the invention use do. But there are also a number of other options available here are not mentioned in detail.

10 claims 1 figure

Claims (1)

P a t e n t a n s p r ü c h e procedure for Pernmelde-, in particular Telephone exchanges, with central control and central storage, in which the call numbers of the calling subscriber are determined automatically, and in which special service facilities for incoming calls to subscribers are seen such as call forwarding, telephone break, telephone order service, etc., d a d u r c h e k e n n -z e i c h n e t that at the same time as the phone number of one Special service participant (STn, 1) who wants to use a special service, Call numbers (Tn) and / or exchange code of calling subscribers (Tn) additionally are saved whose calls are to be treated differently than those of the other subscribers, and that for this purpose also the call number of the caller for each incoming call and / or its exchange code is compared with the stored numbers j 2. Method according to Claim 1, d a d u r c h g e k e n n -z e i c h n e t that the Calls from participants whose phone numbers are also saved, despite the switched telephone pause or call diversion to the called subscriber line penetrate. 3. The method of claim 1, d a d u r c h g e k e n n -z e i c h n e t that calls from subscribers whose phone numbers are also saved are diverted to a different connection than the other calls. 4. The method according to claim 1, d a d u r c h g e k e n n -z e i c h N e t that the calls from subscribers, their phone numbers or outside line codes in addition are stored, and which are already via a special, e.g. long electrical line, were made, from a diversion through a further line of the same or similar type are excluded. 5. The method according to claim 1, d a d u r c h g e k e n n -z e i c h n e t that calls from subscribers whose phone numbers are also saved are, if the called party is busy, possibly accompanied by a warning sign (ticker) or an announcement can be automatically switched to an existing connection. 6. The method of claim 1, d a d u r c h g e k e n n -z e i c h n e t that the parts% mer, whose phone numbers are also stored, one special text that is inaccessible to others, for example the recordings of an answering machine. 7. Circuit arrangement for carrying out the method according to a or more of the preceding claims, d a -d u r c h g e k e n n z e i c h n e t that in the switching system to which the special service subscribers (STni, STn2) are connected, except for central storage (Sp) in which the call numbers the special service subscriber, the type of special service and, if applicable, the phone number of the Port to which the call is to be diverted are saved, as well as others central memory (Sp) are present in which the phone numbers of calling subscribers and / or trunk codes as well as the switching measures are recorded, which on arrival of calls from these numbers are to be carried out, and that in addition to the Identifier (11) that contains the call numbers of the calling subscriber and / or the exchange code at least for calls to special duty subscribers (STn) to determine the comparator (Vg) are provided that contain the call number of the calling subscriber and / or the outside line code compare with the saved ones to determine the specified switching action if they match to execute. 8. Circuit arrangement according to claim 7, d a d u r c h g e -k e n It does not indicate that a common central memory (Sp) is available the individually required number of storage cells for each special service subscriber (STn) (Sz1 ... Szn) is provided. 9. Circuit arrangement according to claim 7, d a d u r c h g e -k e n n z e i c h n e t that in the memory (Sp) simultaneously with the call number of the authorized Callers also note the number of calls that received special treatment should, and that a counter (Z) counts the number of such calls and with the specified Number compares each time, and when the specified number is reached, this memory content clears. 10. Circuit arrangement according to claim 7, d a d u r c h g e -k e n n z e i c h n e t that in the memory (Sp) at the same time as the call number of the authorized person The call ends also the time is noted, bia su of his calls a special treatment should learn, and that a clock (U) is assigned to the memory (Sp), which is continuously or compares the two times of the day for a matching call, and if they match or if this is exceeded, this memory content is deleted. L e r s e i t e