DE2343498C3 - Procedure for setting up a connection and telephone switching system for carrying out this procedure - Google Patents

Description

8. Telephone switching system according to claim 7, characterized in that the calling subscriber to the line assigned to him and the called Participants are connected to the column assigned to them.

The relevant device (TInX to 77 / j / i, AUe) assigned address appears at the output of its address counter (ADZ) and this device (Tlnl to TIn n, AUe) is thus called.

5. Telephone exchange according to claim 4, characterized in that in each device (Tlnl to Tlnn, AUe) a to the common from the desired subscriber is called and requested to take over the external call. The subscriber at the serial extension switches on by pressing a button and is connected to the exchange subscriber. The recording of an outside call, however, is not tied to the main office. Every authorized extension participant can also make the call

ake, _{so he} f _s it gets, if appropriate, signaled by a "usätzJichen alarm clock. Internal fcLspräche between the extension users upload also on the common phone line "leads, with so-called call lines d each Teiliehmcrstation _{j e he} other subscriber station ■" round. Due to the large number of call lines, which are necessary because all signaling operations are maintained by the subscriber stations, multiple cables are required in series systems. If calls are also made over the "call lines", one speaks of a line dialer system ". In the case of line dialer systems, a line line runs from every intercom station to every other intercom WIe, so that several calls can be made at the same time within the system.

There are already numerous circuit arrangements for line dialing systems, intercom systems and Shen systems known (compare e.g. the German external writings 1412 993, 15 12 028, 21 18 335). at These circuit arrangements become both the confusion and the control information transmitted in the conventional, analog manner, so that vTel-core cables must be provided. Meanwhile a system has also become known at WelcSder Line expenditure is reduced (A a r ο η s ο η and A cameora, A frequency division multiplex Kev Telephone System, IEEE Transactions on Com-Snications Technology, December 1971, pp. 1242 and 1243) Here is a space-division multiplex coupling switch I dr row main unit provided with that of ii a telephone station with each outer Connection line connected, subscribers should be connectable. This well-known Transmission system is due to its required unsolicited

limited expandability is relatively complex and is less for small switching systems

suitable. .

The invention is therefore based on the object em

Method of the type described above and a telephone exchange to carry out this To create a process which is particularly suitable for a small switching system and which Advantages of private branch exchanges with switching equipment and the series systems connect

the. . "

In the telephone switching system operating according to the invention, there is on the one hand none Coarse cabling work may be necessary and, on the other hand, no complicated central control is required will.

The task is solved according to . ^ & *** method, which is thereby

that the individual devices ^{em "lts" a} ^ j; borrowed state and its possible Verb.ndangswünsch indicating message word ^^ S addressing practice the individual Eu, 5 are called, and then the IjJj ^ dung word ^(v erbindungswunschadre ^ e) ig lines send, which is received by all Eingehtang "same as * ^ fueled message word and ^^ J address indicating" ^^ ke contained its own state
sends out the scaling, f ^ the response to the = Si ^ aueitung cycle subsequent attention to the delivery ^ η message word is calledL andI * J Jurdh de indication of the ^^^ S ^^

Hold a call. Exclusion from a telephone

Transmit sen. The independent control of the

sSÄTtsriS srrs £ 5 Message word and

uses the user commands to the series main unit zHSrport when a key has been pressed. From the DT-OS 21 28 104 e.n button telephone transmission system is of the type described above known? which a multitude of individual connection units has associated structures. In these structural units, individual processors are not installed, which are controlled by a central controller issued control commands can be controlled in parallel and by this current processing status corresponding commands in their schnttwe.sen Processing of connection establishment advanced

complete data worx ^
Data word ^ dtaM
Participant_ nut the

placed

_d f _{ru en e} "ieShrner without WEI

the ready to talk Lsmtn. The address of _the fixed word for the switching step appears. _{ht i}

^ ^ f £ j £ ^ tenwort appears, while got _{hren makes it in white} .

60 ° "f ™ ⁿ Y" ⁿ ^ _"d ^a _{ung mö} possible, a telephone-Jrtaldung the Efl ng ^^ g ^. ^ _Procedure

^ Transmission of the data word only

It is of this well-known literature, an un- ^^^ SS ^ s ÄÄTÄ
delimits an expandable transmission system for key 65 de ^ yneitung ^ s _{en Kleinaniageil} ,

To create telephones, with the advantage of being able _{to use every other} telephone

^ Äi ^ i ^ ί ^ ϊΚ SriSÄ special control line was connected

or all participants have their own to the central one because each participant circuit has a similar decent

Have a leading line of control. centralized control part is assigned, with regard to

In a further development of the invention, it is recommended that only very little advance payments be made for an extension each device must be provided with an address counter. These inputs can is that a centrally arranged clock via the 5 is only in the relatively small-scale switching network signal line for synchronous incrementing of the address control.

counter is connected to these that the address counter, contrary to the serial systems implemented so far, in

in the facilities each with an address from which either the individual operating functions

Another connection is that the sending of the MeI is handled by a large number of wires between the stations

of the called facility from an io or a central controller was available,

Emits a signal that triggers the message word memory, so with the signaling inputs of the stations

soon the associated device was linked, in the remote control according to the invention

Address appears at the output of their address counter, and speech switching system the signaling in each

this facility is thus called. Station take place and also evaluated. The single ones

By means of such a measure, the information flow flowing through the 15 connections can be connected in parallel or in series to the ge signal line is reduced by only connecting the signal line via this signal line. The method according to the invention is suitable to be given for individual clock pulses. Through these private branch exchanges of construction stage 1, for small Mak clock pulses, the single and order systems as well as for the video and individual counters are controlled via the signal line, one of which can each be assigned to a data exchange. All counters run by means of a telephone exchange control system constructed according to a corresponding Synchronisiersi- systems can, as already explained above, gnals synchronously with each other and thus have the same address anlie- pre-power expanded and connected to their also without difficulty and with a very low output at the same time various signaling ^{victories. 2} 5 routing procedures for external lines (NAL cross-connection

Each facility emits its message word when the binding is adjusted.

the address assigned to it in the meter belonging to it. A low number of cores is achieved in the lines to the stations arriving via the common data line for easy delivery of an answer to. A spatial switching network message word of a calling device can be used in a way that avoids the difficulties of multiple connections. In the case of time-division multiplexer four-wire technology, the common signal line connected register Hch multiple connections (for example, it should be provided that the register with one of the register contents recorded by the three subscribers and evaluate the signal line can speak to each other) is only possible if the register evaluation it is connected that the individual speech signals are mixed with one another in terms of low frequency with register evaluation with the one of their own. However, this requires a response characterizing the state of the device, additional demodulation and renewed modulation, cherning message word memory is connected and, of course, it is also with a corresponding that the register evaluator sends a remote response to the signal line produced by the method according to the invention on the signal line from the message - Intercom possible, this with a word memory triggering signal, as soon as a central or decentralized time-division switching network to set up the connection request of another device. In the case of a central time-division multiplex header of this facility, the message word for the field field that characterizes this device must then pass between the subscriber line registers. The 45 coming over the signal line and the switching network filters and forks for the message words are therefore constantly on the address lation indicating the calling subscriber to a suitable modulation or Devon for all subscribers searched. Has the desired modulation to achieve.

Subscriber equipment the occurrence of its own with a decentralized time division switching network

Address in the last transmitted message word 50 is the PAM busbar to the individual

found, it immediately outputs its answer, the subscriber circuits bypassed. This requires

then combined with the message word a complete but the connection of the stations by means of a co-

Data word on the signal line results. The fully axial cable, and it is also easy to

However, this data word on the signal line causes reflections to occur.

further already explained above, a through-connection 55 with the inventive switching system two subscribers by means of the connecting means can both Inter switches, z. B. normal which can essentially be represented by a switching matrix and an internal call, switching processes, listening processes switching matrix control. Advantageous and conference connections, as well as external exchanges liable further developments of the invention result from lungs, z. B. normal external calls, queries, the claims. 60 transfer processes, night switching, waiting positions The advantages achieved with the invention consist and wake-up calls are carried out at a station. in particular that there is no central control part in front of the advantages achieved with the invention and thus from a central control to in particular that no central control part is seen in front of the individual subscribers leading control lines and thus the signal lines of one are omitted. With the invention , only a single or 65 subscribers to the control center are omitted. In contrast to very few signal lines (for example two series systems implemented so far, in which either signal lines) the individual operating functions are used over a large number of wires. Another advantage of the invention is that between the stations or one

23

HwJi tfer iwtfmäunjsifKimHiitei) Aiiio

$ ign »! ti» i «mnuj. itti jieiier instead of ™ «raeupi amdl
eäimaäbnem .AmadWlittSiir stöiimeti fnintüillfi.l

Sk

oiätir

mfflsmsxo warääati. Ofe sitiiiafttEupiHsmiuik Αί-nuac> tffi til; <. <äsr ßiHBKtiiifc! L. site ikilainat
¹ ι «κ8 ffiitr Ä Viito- uamä SB

Sk? ! comb aiuÄauäaiiB feuftÄ «r-

VmtMwsiiftdea siajua esa zenirata.
iitf © itee üiDffsäirBfe AsässnazaiH das <& sa

9iisg:> ipi £ Mdi; ä »« raraesäks «represents

the ba at zssil-

Is it aasch sBosfück. disc Er- «ment zfrmaralen o «dn ·« Sezsotraktü Zeit- || Jpeliei4! safzjifeauea. in the first case there must then be between the subscriber lines and the coupling field filler and fork for the transition to the four-wire pulse ampute modulus, while in the second case the various speeches are staggered in time. However, this requires the stations to be connected with coaxial cables.

With the placement system according to the invention can "" probably initiate learning, e. B. normal Interngfisprächc, Aufichaltvorgäntee, Mithörvorgäntee and conference connections, as well as external rentals, z. B. normal external calls, queries. Transfer processes, night services, waiting positions and alarm calls, can be carried out at a station.

An embodiment of the invention is shown in the drawing and will be described in more detail below described. It shows

I- i g. 1 shows a basic circuit diagram of the arrangement according to the invention,

Y ί g. 2 the control means housed in a subscriber station,

I- i g. 3 a circuit arrangement for the control the line transmission,

F i g. 4 a coupling field controller.

In FIG. 1 shows three subscriber stations 77 «1, 77» 2 ... TIn η and an exchange transmission AUe , which represent several subscriber stations or line transmissions. The TdI receiving stations and the exchange transmission have Sprcehleitungcn SpLl, SpLl ... SpLn, SpLa , which are fed to a room-multiplexing switching network / fF. This switching network KF is connected to a switching network control KFSt . Besides the phone lines go from the subscriber stations 77 "1, Tini ... η Tln and on the Arntsübertragung TVe still Steuerlcilungen SRLL, S7L2 ... STLN or STLA that η via line adjustments LAl ... LA or LA on α lead a common signaling line SignL , which can consist of one or more wires. A power supply device SV and a central clock generator ZT are connected to this signaling line. From the switching matrix controller KFSt. which only receives signals that are used to set the Koppclfcldcs, leads a connection via the line adapter LAK to the same signaling line SignL · In the line adapters LAl ... LAn and LA K , the signals from the signal

utiü T;, mnlifncsrril ⁱ rirmiii'v »'necessaryi iTiif seti -um F μ> c. Ί y

vis'li:?; a «iBB waf .. vif ^ sfrrdh" mr: T -unä

τ.ιη3ιββ sssEifTüdbai) «äcnwrs Jar iB'tAidb
5 · ι> Αιεϊ aSor lenaBE ^ äfttaikEtttasair itsa «sa
«Mm * AsnaiBgKsfiiräifefi« tea
S5EE

spnaefe

Tlrnl

g so $ L Nsraumn fessna «as

«Ka HiSjsrr dsr TeüiMlaiOiisätatioa Tht 1 * K ss>

- Then TOiiifiS 'der dsse Taae «irisciifa. the <kr

aite

a rougher bite

SignaHIettung Sig / sL g ^ gc ^ es ^ and

merstatiooen. among other things too

tion Tbil. supplied »ird. The data word cnihSll d * t address of the subscriber station TI »2 (calling subscriber = GT1 and a command to switch on a buzzer in the subscriber station. This data word is now repeated cyclically as long as the key assigned to the subscriber station Tlnl on the subscriber station TInI is pressed. The elements of the data word are therefore as follows:

GT call

If the button is released, the subscriber station TInI emits a new signal. which consists of the address of the subscriber station TInJ (GT) and the information "Call status" (Gcspr.):

The data word then looks like this:

GT Talk

GT Talk Talk

If the receiver of the subscriber station TInI is then lifted, 30 the subscriber station TIn2 appends additional information "Call status" to the received message. The entire data word formed from the message and additional status information (response) thus consists of the information "Address of the subscriber station TIn 2""Callstatus" and again "Call status:

This data word is sent in a time slot or a pulse phase that is permanently assigned to the subscriber station Tlnl.

The data word consisting of the three individual items of information is now evaluated in the switching field control, KFSt so that the address of the subscriber corresponding to a specific Zcilschlit controls a column of the switching network KF and a line with the address of the subscriber station Tlnl. The coupling control is only activated if two in the message

times the information "Call status" is available.

The switching network KF remains switched through for at least one pulse frame length, but usually four to five. If the entire message no longer appears after these four to five pulse frames. If, for example, a piece of information "call status" is removed, the switching matrix drops out.

From the above it follows that the transmission of the control information is time-division multiplexed, a time phase is reserved for each of the subscriber stations and line transmissions.

A station's transmission facility is always

10

switched on when this time phase occurs. In addition, the receiving controller can send a response during this time phase. The construction of a full pulse frame de ^r inventive system is such that a first data word which consists of an address information of the called station, state information and a response information of the called station, each having a plurality of bits, a second, third, four-ίο tes, M -th word follows, which is structured in the same way. A synchronization pause appears at the end of the η-th word, with which the controls of the stations are aligned.

S-break

Verbal Condition Answer Word 2 Word η Condition Answer Addr. Condition Answer Addr. Addr.

The tasks of the power supply SV and the central clock generator ZT are to supply energy to the individual subscriber stations or to supply the same clocks to all subscriber stations.

On the basis of FIG. 2, which shows the circuit of a subscriber station, the previously described process will now be explained in somewhat more detail. For this purpose, it is again assumed that another subscriber station from the subscriber station TIn 1, e.g. B. the subscriber station TIn 2 is to be called. If the button 7 ", which is assigned to the subscriber station TIn2 , is pressed, the address of the subscriber station TIn 2 is transferred to a holding register HReg via an encoder Cod together with the information" Conversation ". If the button is now pressed further - the button has two positions - so the status "call" is also entered in the holding register. Since clocks from the central clock generator ZT of FIG. 1 reach the line adapter LA and from there to an address counter ADZ , this address counter ADZ is incremented front part of the Adressenzäh coupler gives the number of the currently pending associated with the individual subscriber-time slot or data word, while the rear part specifies the number of bits within the data word. This is important for the timely sending of the response. Due to erase pulses Li, it is possible to clear this address counter A DZ again, and it can be synchronized by means of a start-stop process The ADA now compares the count in the front part of the address counter ADZ with the address or number of the subscriber station Tin I. If the address evaluator ADA detects that the front part of the address counter ADZ just contains the address or number of the subscriber station , it gives a pulse on the line EA and thus prepares an input of the AND element t / l, which stands for several AND elements. As soon as a new address or number gets into the front part of the address counter ADZ and before bits are counted up in its rear part, the device ZPA responds and prepares the second input of the AND element t / l voi so that the content of the holding register is parallel is shifted into the transmission register SR . If the content of the send register SR is not equal to 0 - this can e.g. B. be determined by an OR gate to which all bit outputs from SR are fed - so the left output of the transmit register SR is released and the content is serialized via the prepared AND gate t / 2 with the clock via the line adapter LA the signal collector SignL is given. The transmission register SR is then filled with zeros so that no further information is output later. The sending process is now complete.

Using the F 1 g. 2 we shall now consider the processes that take place in the subscriber station TIn 2. Since all subscriber stations have the same structure, it is possible to use the circuit arrangement according to FIG. 2 to be used both for the description of the mode of operation of the sending subscriber station TInI and of the receiving subscriber station Tlnl . The subscriber station Tlnl is given the message coming from the transmission register SR of the subscriber station Tlnl into the receiving register ER via the line adapter LA . The left part of the receiving register ER contains the address given by the subscriber station Tin I, while the right part contains the state given with the same message. The address evaluator ADE now compares whether the received message contains the address of the subscriber station Tlnl . If this is the case, then, when the device ZPA recognizes due to the existing synchronism that the full message is present in the receiving register ER , the AND element t / 3 is switched through and thus two further AND elements t / 4 and t / 5 prepared. The status information of the receiving register ER, which was entered by the calling subscriber, is decoded with the decoding device Dec. If the "Call" status is recognized, a signal is applied to the left line of the three output lines of the decoder Dec. If the status is “conversation” or “digits”, the decoding device Dec sends a signal to its middle output line, and if it detects a waiting status, it sends a signal to the right output line. The presence of a call signal means that the AND gates US, t / 6 and Ul are prepared. The AND element 1/5 is also controlled at its second input via the AND element t / 3 due to the fact that the address evaluator ADE and the device ZPA emit signals at the same time. The call signal is thus passed through by the AND element t / 5.

switches and given to the monostable multivibrator MKl , which turns on a buzzer, not shown. The subscriber at subscriber station TIn 2 can now pick up the receiver. The monostable multivibrator MKl, which controls a bell (not shown), is only activated when there is a call from an exchange transmission, since the address evaluator ADA is provided with a corresponding decoding.

Since the address evaluator ADA in the subscriber station Tlnl does not recognize the address of the subscriber station 77 «1, the AND element Ul is blocked. The AND element t / 4 is prepared, however, since the device ZPA has a signal pending on its second output line. From the holding register HReg , the second part of the command - the status of the called subscriber who is idle as long as subscriber 2 has not picked up - is entered in the transmit register SR and shifted to the signaling line SignL with the central clock. Since 77 «2 did not press a key, it is not possible to transfer an address. The switching network KF is not switched through because one of the states (namely: "idle state") is not yet suitable for switching through.

The subscriber station Tlnl is now called. If the subscriber lifts the receiver at the subscriber station, the call status is entered in the holding register HReg. After the next message from 77/11, the call status is given as a response via the send register SR to the signal line SignL . As soon as the KFSt switching matrix controller detects »conversation« twice, it switches through. If the subscriber hangs up the receiver at subscriber station Tlnl, the call state in the holding register HReg is replaced by the idle state. There are z. B. only zeros are written into the transmit register SR .

As already mentioned, the AND element is t / 6 in the Ruffal! has been prepared over the call line. This AND element is switched through to control the lamp in the event of a call when the assigned output of the address evaluator ADA is addressed. The address evaluator can, for. B. have as many outputs as units (Tin, ALJe, NAL etc.) are connected, so that a lamp can be assigned to each unit. The AND element 1/12 is then controlled via the OR element O1, which gives the address to the decoder Dec \ at the point in time determined by the device ZPA as the end of the time phase. From the decoder Dec \ still a monostable multivibrator is MK3 driven a certain Lampell now via an OR gate Ol which For example, participants Tlnl is assigned. The lamps Ll ... Ul are shown here as an example for several lamps. In a similar way, the lamp Ll can also be controlled via the AND gates US and t / 9 when “talk” or “wait” signals are determined by the decoder Dec. In the latter case, however, rapid flicker signals from the generator SFG must be added to the input of the AND element t / 9. The AND gates t / 10 and t / 11 can only switch through when signals come from the address evaluator ADA and the receive register ER. The AND element t / 11 must also be fed slowly flickering signals from the generator LFG. In the case of internal connections, the corresponding lamps are switched on continuously in all states, with the exception of the lamp of the subscriber who calls the subscriber station in question or is in a call state with it. In this case, the calling party's lamp flickers slowly. When a trunk transmission is ringing or waiting, the corresponding lamp S flickers slowly or quickly. Since the control signals are only present for a short time, they are temporarily stored in monostable multivibrators MKZ, MK4 . These monostable flip-flops are set so that they stop for the duration of a frame. When

ίο after this time there is no new setting pulse they off and the lamps Ll, L2 are extinguished. In FIG. 3 is a line transmission e.g. B. can be a NAL or trunk transfer, shown in more detail. The subscriber stations and line transmissions have identical controls in terms of their structure. In the line transfers will be Dialing transmitter and loop relay controlled, the signals from a caller or a dialing receiver come. The line transfers can

considered once as calling transmissions and once as called stations. As for office calling station they serve z. B. when a subscriber wants to make an outside call. The participant picks up and presses the exchange key, a message is generated based on the key press, which is derived from the address the line transfer and the information "call status" exists. So:

AUE Talk

If the transfer from the office is free, it gives the information "state of conversation" so that a word is created which consists of the address of the exchange transmission, the "call status" and "call status"

AUe Talk Talk

First, let the arrangement according to FIG. 3 as al; considered transfer called by the office. Al; this called transmission can only be in the dialing or call state or in the waiting state It must therefore be given by an unillustrated call relay or from a waiting flip-flop a code on da: OR element 05, which stands for several OR elements. In order to enter the status of the transmission in the holding register HReg ' , wire this code to the holding register HReg' via the AND element 1/15 if the AND element UV. is not blocked by the negation element Nl. Such a blocking always takes place when the time phase (or word) assigned to the transmission is currently present and the negation element is controlled by the address evaluator ADA via the line EA. If its own time phase is just beginning, the AND element t / 16 is prepared via the line EA and switched through by the device ZPK, which determines the start of the time. The content of the holding register HReg is thus transferred in parallel to the transmission register SR . If the content of the send register SR is not equal to zero, the content is sent seriel via the AND element t / 17.

The transfer of the F i g. 3 is now as a subscriber called by an extension subscriber be seeks. The idle state is assumed here

13 14

gen, in which the content of the register Reg is zero. The transmitter and loop relay ZGSK also has an un-The OR element 06 is switched through and an indirect connection to the decoder Dec III. with the AND element t / 19 is also prepared. So- In the fig. 4, the switching network controller KFSt will soon recognize the address evaluator ADE ' that in accordance with FIG. 1 is shown again in more detail. The receiving register ER 'contains the address of its own office 5 two AND elements t / 22 and (723 are each pending for transmission, it causes the address of the multiple AND elements. The AND element calling subscriber is used as a result of the connection of £ / 22 for the control of the columns and the AND-t / 19, of ADZ ' via t / 18 in the register Reg ge member t / 23 for the control of the lines of the coupling Own field KF. Activation always takes place when the address is recognized, the AND element t / 19 ic · the AND elements mentioned are only released by a further one when the OR element 06 AND element t / 24 is released In this case, the comparator Vergl is switched through, which compares the contents of the address counter ADZ ' or whether the contents of the register Reg match the contents of the receiving register ER " via the AND-Glie contents of the address counter ADZ' Sent t / 22 or t / 23 here s AND element t / 24 is a double assignment of the office transfer 15 has three inputs, one of which is avoided by two or more extension subscribers decoder Dec IV and the other to the decoder. When the AND gate t / 19 is connected through Dec V. This decoder decoding is switched, the further AND element t / 20 is switched through the contents of a second or third area of the and thus the contents of the status receiving register ER ". In the second area, the receiving register participates in the decoder Declll ao This decoder Declll has three outputs in the third example is the status of the called passage, with the left output, which denotes e.g. can, the digits to another decoder Dec VI, from which a signal 1 ... O, at the middle output the signal "digit or, if the message is completely written into the conversation" and at the right output the "waiting state" 25 receiving register ER is written The two last-mentioned outputs tion of the rows and columns are only carried out if they lead to a flip-flop FF, which is a waiting time ustand if the two states are in the receive register, sends a signaling coded signal and a and the complete data word has come to an end. When the OR gate Ol controls that hadierer also from the Deco crosspoints itself a monostable behavior I> ecIII is immediately activated. Ben from the 30 must at the row driving a monostable ODKR gate Ol will be provided a monostable multivibrator circuit triggered a service life of FMD, in turn, has the loop relay of a frame duration. If the message appears after a frame ZGSK controls , while the first output of the menu does not return the message, the speech path Declll den. Encoder controls. From this digit- triggered.

For this purpose 4 sheets of drawings

Claims (1)

Patent claims: 1. A method for establishing a connection between the connection devices of a telephone transmission system with control distributed among the individual connection devices, characterized by the individual steps that the individual devices (Tlnl to Tlnn, A Ue) have a message indicating their current status and possible connection request. dungswori store (in HReg) that by addressing the individual facilities (Tlnl to Tlnn, AUe) are called cyclically and then send the stored message word (connection request address GT: state: conversation, call) via signal lines (SignL) , which of all Devices simultaneously (Tlnl to Tlnn, AUe) that the device (Tlnl to Tlnn, AUe) addressed by an address (GT) contained in the message word and indicating the connection request a response identifying its own status (conversation, call) sends out over the signal lines that after sending out this response to the Sig signal lines «5 (SignL) the device following in the cycle (TIn 1 to TIn n, A Ue) is called to deliver its message word and that a complete data word is given by specifying the message word and the response (GT address; State: call, conversation), through which a connection device (KFSt, KF) that connects or disconnects the two devices assigned to the data word in the desired manner is switched on according to the content of the data word. 2. The method according to claim 1, characterized in that the three pieces of information (an address, two states) of the data word are sent in three sub-phases of a given length of a time phase. 3. Telephone exchange for performing the method according to claim 1, characterized marked that for the transmission of the data word (address GT: status, call, conversation) only a single signal line connecting all facilities (77 «1 to subscriber, AUe) with one another (SignL) is provided. The invention relates to a method for connecting 4. Telephone exchange according to claim formation structure between the connection devices 3, characterized in that each device 50 of a telephone exchange with on the individual (TInI to Tlnn, AUe) with an address counter NEN connection devices distributed control and (ADZ) is provided that a centrally located a telephone switching system to carry out clock (TC) via the signal line (SignL) of this method. In order to synchronously increment the address counters In the case of private branch exchanges, the two (ADZ) are connected to them, so that a distinction is made between the address counters (ADZ) in the devices (77 «1 to subscribers, and» serial systems «). In series systems, each with an address evaluator (ADA) passes through an incoming call from outside that sends the message office call all parallel to a common speech word of the called device (77-1 to line connected series points and ends at subscribers , AUe) from a message word memory 60 of what is known as a row house, which emits a signal that triggers a change (HReg) as soon as the self-current alarm clock has it. From the row main office Signal line (SIGNL) connected register (ER) is provided, that the register (ER) with a picked up by the signal line (SIGNL) register contents valued register evaluation (ADE), in that these registers evaluation (ADE) to the one's own state of Device (Tlnl to Tlnn, AUe) characterizing response (call, conversation) storing message word memory (HReg) is connected and that the register ejector (ADE) emits a signal causing this response to be sent on the signal line (SignL) from the message word memory (HReg) as soon as a message word identifying the connection request from another device (Tlnl to TIn n, AUe) to this device reaches the register (Reg). 6. Fernsprechvcrmittlungsanlage according to claim 5, characterized in that the devices (TinI to Tlnn, AUe) can be connected to one another via a common switching network (KF) , that the switching network (KF) by a coupling field control common to all devices (Tlnl to Tlnn, AUe) (KFSt) can be switched through so that the switching matrix controller (KFSt) also has an address counter (ADZ) and switches through or disconnects the desired connection when a complete data word containing the relevant information arrives. 7. Telephone switching system according to claim 6, characterized in that the switching network (KF) is single-stage and matrix-shaped and each device belonging to a subscriber (Tlnl to TIn n) is assigned a row and a column, while the devices used for line transmission (AUe) only one column is assigned.