DE4102751A1 - TELEPHONE OR DATA SWITCHING SYSTEM WITH SWITCHING CENTER COMMUNICATION WITH VARIABLE PROTOCOL - Google Patents

Description

The present invention relates to a telephone or data exchange system and in particular to one which has adaptable protocols different variants of a signing protocol or Signing protocol between switching centers (switching offices), such as e.g. B. R2 signaling, and to provide a method, the protocol to provide (protocol = formal set of conventions between com communication procedures regarding the format and content of the exchanges the messages or characters).

R2 signing is a form of interconnection or intermediate Switching of switching center signage, which is standardized according to CCITT is. Multi-frequency dialing (MF) uses this type of signaling and is referred to as "inevitable" or "forced operation". With the R2- Signing sends an output register of the originating or originating switch a first, going in the forward direction (= from the exit switch office for receiving switching office) MF intermediate register signal (register exchange signal), which is detected at the receiving switching office and is recognized which is at the extreme end of a sequence of tandem switching offices or switching points. After recognizing the first forward the receiving exchange sends an MF Register exchange signal to the originating exchange, which has its own Has meaning and also serves as confirmation. This coming back Register exchange signal is detected by the originating switching center and recognized, whereupon this the next register exchange signal to the receiving office or sends the receiving exchange (forward). Again sends the receiving exchange sends a next register exchange signal to the Origin exchange back and the communication back and forth is continued until the last register exchange signal has been sent. The Communication between the exchanges is between one Exit register of the original central office via a channel  to a similar input register at the receiving central office office led.

The communication system is called "forced" or "forced operation" designated because the originating switch signals in response to returning signal sends which from the received exchange to be provided. The inevitable nature of the protocol gives the R2 form of the Drawing a remarkable flexibility. This doesn't just include that Ability to provide a variety of information, such as: B. address signals, Overload signals, call signals and signals about the state of the called Subscriber line etc. but also the ability to go from one end to the other others to work. The signing from one end to the other is that Ability to communicate directly with the input register on the other end even if there are a number of intermediary central offices for the route of the call (signal path) have been used.

While the CCITT standard is usually between international orders switching changes or switching exchanges are used for the numerous variants have been generated for national use. Some of these variations have little in common with the CCITT-R2 protocol, other than the used signing frequencies.

The fact that different variants of the standard are different Countries, has led to local, national placement agencies, which must be programmed uniformly in order to use the local, national protocol realize or install. Because most modern placement agencies are program controlled, should, due to a change in national protocol or due to a shift in switching etc. Changes to the operator may require computer programs for Switching agencies or offices are available in the switching office. These programs are typically written on an EEPROM, a floppy disk or a magnetic tape and are always from the supplier of the switching system that matches the programming needs of his Switching system product is completely familiar.  

Changing or updating and revising (update) a switching center due to a change in the protocol for the com Communication between the exchanges, however, requires a considerable amount Programming effort based on country to country and operator system to switching system, which is expensive for the customer and for the supplier is time consuming.

In addition, given the expansion of world trade with brokerage systems desirable that a supplier of a switching system will be able to is to provide a single switching system that is easily customized can to a wide variety of protocols for the drawing between Switching centers or all variants of a standard signing system Provide and maintain protocol at minimal cost. Before the The present invention was of such a remarkably low cost and as simple as possible using the present invention not get.

In the present invention, there is a plurality in each switch stored by program sequences, referred to here as program structure blocks to different sections of a variety of drawing protocols for a signaling standard which, e.g. B. R2, should be used used (installed) or to be realized. In other words, it are small special programs for the control of the transmitted Signing signal stored in the exchange, this Programs are used to shape every different possible Control signal to be transmitted. After installing the The agency chooses the customer with the help of a user interface that is easy is to be used (for example with the help of a form on a Terminal screen is displayed) the waveform for each type of signal, which should be used using the local national Protocol. The personnel of the exchange (or the customer) designated the corresponding program blocks. The label coding is loaded into the control memory of the departments of the switching office, which the Control signal protocol. Once they're loaded and available,  the switching center uses appropriate assembly block control procedures that are designated by the designation coding in the control memories in order to Regulate the form of the signing according to the designated protocol Taxes.

A similar function is used for the control of the reception and the Interpretation of signals provided by the remote switch received in the same protocol from the connection or from the channel will.

As a result, the manufacturer of the exchange no longer has to use the character set Exercise between the switching centers of the switching system for everyone adapt national market to the customer. The customer designates the shape himself the signaling signals required to install the protocol and the resulting corresponding program sequences, which in the Machine already exist, automatically modify the exchange, to cause the signing protocol to be installed or implemented becomes. This gives great flexibility and saves a considerable amount of time and money on the part of the customer after an initial installation of the Switching system and when the need to use the signing protocol change.

The result is a switch that is easier to install and to use is realized and which for the customer lower costs, increased Flexibility, for the supplier of the switching system saving of personnel and a universal switch means for use on all markets can be sold, which variants of the same standard Use signing protocol: In the case of CCITT R2 signing this includes most countries in the world.

One embodiment of the invention is a method of making the Signing between offices or exchanges, the steps comprises: storing program (structure) blocks for command generation, in one A plurality of signaling protocols of signaling signals in one  Communication switching system, storing correlations of certain Program blocks with a specific protocol for drawing functions, that relate to the process of a call to or from the communication switch relate to the system, enable the sequence (commissioning) of the specific Program blocks when a certain signaling signal when a Telephone call to or from the communication switching system are generated is to adapt the specific protocol, whereby the communication ver messaging system is able to process calls for you specific call to the specific protocol from a plurality of protocols are limited.

Another embodiment of the invention is a communication switch system with a signal generating device for generating signaling signals between offices, at least one channel for the transmission of the Signaling signals, a device for connecting the signal generation device with the channel, a device for storing a plurality of Program blocks for command generation of signaling signals accordingly a plurality of protocols, a device for storing names certain program blocks to provide instructions for the operation of the Signal generating device according to a special, predetermined protocol give a device to the specific or special program blocks while processing a call from or to an exchange in To take operation, which means that communication with it special predetermined protocol is executed binding.

While referring to the invention in the manner throughout the description is taken that they are at a switching office or a switching center is realized, it should be noted that the invention also suitable private automatic branch (PABX, Private Automatic Branch Exchange) or branch exchanges, can be used and insofar is the reference to switching centers (switching systems) throughout Interpret description to include such PABXs. The The invention can also be used equally for analog and digital systems as well as in such types that are used to analog voice  transmitted, for digital voice transmission (PCM), or for data signals.

A better understanding of the invention can be had with reference to the following detailed description referring to the drawings below takes of which:

Fig. 1 is a block diagram of a switching system employing the present invention,

FIG. 2 is a block diagram of a peripheral interface circuit for signal processing used as part of the invention.

Fig. 3 is a block diagram of a digital signal processing module, which is used for the signal processor of the invention,

Fig. 4 is a first terminal screen form, which is used in an embodiment of the invention, and

5, a second terminal screen form Fig., Which is used in one embodiment of the invention.

Reference is now made to Fig. 1, which illustrates a basic block diagram of a switching system, such as. B. The system sold by Mitel Corporation under the trade name GX5000®, which realizes the present invention.

The switching system is formed from a main control part 1 , which is connected to the memory 2 , and there is a main parallel bus line 3 , to which the main control is connected. A circuit switch 4 , which is controlled by a control unit 5 , which is connected to the bus line 3 , switches pulse code modulated (PCM) signals via the lines 6 to the inputs of peripheral switches 7 A- 7 N, to which peripheral elements such. B. line circuits and channel circuit 8 are connected. These control units 1, 5 and 10 can be implemented in a single controller. The peripheral switches 7 A- 7 N are controlled by peripheral control devices 8 A- 8 N. Control signals from the main controller 1 are switched to the controller 8 A- 8 N with the help of the messenger switch 9 (message switch), which is controlled by the controller 10 , which in turn is connected to the bus line 3 for receiving control signals from the main controller 1 . The switches are combined time and location division switches as described in U.S. Patent 4,510,597, issued April 9, 1985 to Mitel Corporation, entitled "Time-Split Switching Matrix".

Programs for controlling the operation of this system are stored in the memory 2 , to which the main controller 1 has access.

To effect inter-office R2 signaling, input-output (I / O) circuits, such as. B. the circuit 11 , connected to the peripheral switch 7 N. Each I / O circuit 11 is connected to an I / O-bus line which is connected to the peripheral switch 7N. The I / O circuit 11 consists of a transmitter 13 and a receiver 12 , in each case for the transmission and reception of signaling signals to an inter-official channel 15 or from it. The transmitter and the receiver are controlled by the control logic 15 A.

Another I / O bus line 16 is connected to the peripheral switch 7N. Communications between different peripheral elements can take place via the peripheral switch 7 N, and from there via the switch 4 , the switch 7 A and between the peripheral elements connected to the different peripheral switches 7 A- 7 N. It should also be noted that message (control) signals may be internally supplied to any of the peripheral elements by the controllers 8 A- 8 N due to their connection to the peripheral switches 7 A- 7 N. Thus, controller 1 via the bus line 3, for example, a message from the master, the controller 10 and the message switch can be transmitted to the peripheral controller N 8. 9 In response to this, the controller 8 N can control the control logic 15 via the switch 7 N in order to control either the transmitter 13 or the receiver 14 , which is connected to the channel 15 .

A system similar to that described above is detailed in the following patents : U.S. Patent 4,510,597, issued April 9, 1985, entitled Time Division Switching Matrix, U.S. Patent  46 15 028 issued September 30, 1986 with the title "Switching System with Separate Supervisory Links "(switching system with separate supers guard members) and U.S. Patent 4,685,102 issued August 4, 1987 titled "Switching System Loop-Back Test Circuit" Feedback loop for switching systems). The content of the above three patents are hereby incorporated by reference into the present application added.

As far as this form of switching systems is under the stored program control, the diagnosis and communication with the system is carried out by a technician via a computer connection 17 , which is connected to a bus interface 18 of conventional form, which in turn is connected to the main parallel bus line 3 .

According to the present invention, a digital peripheral signal processor interface circuit (SP PIC) 19 is connected to the bus line 16 . In a successful prototype, each SP PIC occupies a slot in a peripheral, rack-mounted switch compartment and contains eight signal processing modules 21 , which are designated as DSP module # 0 to DSP module # 7 in FIG. 1. Each DSP module is connected to the output of a multiplexer 22, which is connected as an interface to an I / O bus line 16 and to a serial interruption controller 23 . The controller 23 and the DSP modules can be connected to one another and combined with the MUX 22 (multiplexer) by connecting the DSP modules 21 and the controller 23 to the bus line 16 via a switching matrix as described in the above-mentioned patents.

Fig. 2 illustrates a more detailed block diagram of the signal processor PIC. The peripheral bus 16 is connected to the input of the multiplexer 22. The output of the multiplexer 22 is a serial PCM line PCSIN, which is connected to the input of the serial interruption controller 23 . A serial communication line (data line) DATAIN is connected from the output of the multiplexer 22 to the serial interrupt controller 23 (serial / interrupt controller). In addition, clock and frame pulse signals are given from the output of multiplexer 22 to the input of controller 23 . The latter are also given to corresponding inputs of the DSP modules # 0, 21 shown . Serial input lines SI 0 and SI 1 are connected from controller 23 to corresponding inputs of DSP module 21 , with the control in CTRIN and interrupt release CLRINTR lines. Serial output lines from the DSP module 21 SO 0 , SO 1 and SO 2 are connected to the controller 23 together with a TMSINTR line.

Output lines from the controller 23 are the serial SPSC OUT and MPSC OUT and serial data lines SDTA OUT and MDTA OUT, which are connected to the bus line 16 and thus to the peripheral switch 7 N. SPSC IN and SPSC OUT lie in the same level of PCM paths (ie they are connected to the peripheral controller / matrix, which is arranged in the same compartment). MPSC IN and MPSC OUT are connected to the controller of the appropriate level. SDATA OUT and MDATA OUT carry the message information via the bus line 16 to a peripheral switch 7 N. The data input, C 244 , FP and clock lines are connected to the data bus line 25 (see FIG. 1). This bus line is connected to another serial interrupt controller belonging to the DSP module # 1 . In this way, several DSP modules with an associated controller can be connected to the serial output of multiplexer 22 .

Fig. 3 shows a preferred form of the DSP module. The module is controlled by a controller 28 , which preferably consists of a microprocessor, such as. B. the Texas Instruments type TMS 32010. A RAM memory 29 (Ramdom Access Memory) with 16 KBites is connected to the controller 28 . An ASIC 30 is connected to the RAM 29 and the controller 28 .

The structure of the ASIC should perform the following functions: It should enable the microprocessor 28 to be controllable via a serial bus connection. It should support an interrupt from controller 28 bound to the processing interface. It should provide an interface between the controller's parallel bus line and the serial bus line. It should support a sequence of interrupts for the controller 28 that is controlled by the processing interface. This sequence of interruptions should be synchronized with the serial bus line. It should contain a boot strap program which is required to load the application program coding from the peripheral switching controller 8 N into the memory 29 . Finally, it should control the page address bit of memory 29 .

The CTRL IN signal to the ASIC is a serial link signal. Everyone Channel on the link should contain a command byte which is assigned by the DSP module is decoded and executed. The ASIC for the command byte during the channel time following the channel in which the command byte Will be received.

The serial interrupt controller 23 is employed using an arrangement of time division / space division switches as described in U.S. Patent 4,510,597. Each of these devices provides serial control for a pair of DSP modules.

The system generally works as follows. The memories belonging to the controllers 8 A- 8 N each contain all assembly block program processes for the implementation of different sections of a multiplicity of connection protocols between switching centers for each possible signal that is to be transmitted. The memory 2 is divided to contain, in the separated section 32, a program of well-known form which enables data entry cards to be displayed on the screen of a computer terminal 17 , relating received signals to functions to be performed.

Each of the DSP modules contains a functionally simple, not to the customer customizable program that sends and receives the MF-R2 signals, the Frequencies and values (amplitudes) of the tones thereof in the CCITT standard are specified.

After the installation of the main switching system and the loading of the DSP modules, the customer's technician (operator) reaches over the terminal 17 through the interface 18 and the bus line 3 , which brings a first board from the memory 32 onto the terminal screen, such as, for . As illustrated in Fig. 4 to the main controller 1.

The operator defines the various functional aspects using a predetermined set of user code words for each signal. After all aspects or objects have been defined, the main controller 1 loads the code words defined by the user into the peripheral controller 8 N, which designate the special program structure blocks which are to be used for special signals, provided the mutual relationship or link is stored is. The codewords defined by the user are switched by the main controller 1 via the controller 10 and the message switch 9 to the peripheral switching controller 8 N, where the full complement of program blocks is stored and are available in the control memories of the peripheral switches 7 A- 7 N . The selected assembly blocks then control the various switches and modules in order to control the form of the signal output on the different channels between the offices according to the local variant of the R2 protocol.

In operation, the controller 8 N a command using the designated linked or correlated command that the DSP module 21 is to send a signal, for example, by writing in channels on the message link on the bus line 16 via the peripheral switch 7 N . A linking member is placed over the switch 7 to an N channel 15 °. From the bus line 16 , the command is carried along the SDATA IN or MDATA IN lines via MUX 22 and the serial interruption controller 23 into the DSP module on line S 10 , where it is read by the DSP program which is running there . A resulting sound signal is generated in PCM, which is led via the bus line 16 through the switch 7 N to the bus line 12 and is transmitted to the channel 15 via the transmitter 13 .

The controller 8 N is informed that an answer tone is detected or has been received by the DSP module writes 0 -Leitung in channels on the SO that through the serial interrupt controller 23 to the SDATA OUT and OUT MDATA lines on the bus line 16 lie.

It should be noted that, if the PCM connection between the channel 15 and a DSP module via a switch 7 N is produced, MF-R2 signaling are held in the strip. That is, the channel control logic 15 does not interact with the R2 protocol. At this point, the channel card carries only what it sees as speech (MF-R2 signals) and the transmitter 13 and receiver 14 only perform normal digital / analog and analog / digital implementations.

As an example, consider an outgoing channel call using MF-R2 signaling. A message is rated 8 N transmitted from the main controller 1 via the message switch 9 to the peripheral controller with the request, to cause the control logic 15 to measure the channel 15 °. Similarly, a dimensioning message is sent from the main controller 1 to the peripheral controller 8 N with the request to list the R2 register control program that is in its memory. A PCM connection is made by the DSP module 21 to the transmitter 13 of the channel via the peripheral switch 7 N, the circuit switch 4 and the peripheral switch 7 N. Similarly, a connection via the same switching matrices between the receiver 14 of the channel and the DSP module 21 .

The R2 register control program, which runs on the peripheral controller 8 N, now causes the DSP module 21 to send the first forward (ie in the transmission direction) signal, as is specified in more detail by the loaded code words. It does this by sending a message over bus 16 to DSP module 21 (as described above).

When a corresponding signal is received from the channel of the remote (other) end by the DSP module 21 , this notifies the R2 register control program, which resides in the peripheral controller 8 N, by sending a message via the bus line 16 . Upon receipt of this message, the R2 register control program determines a signal to be sent in response using the loaded code words and the sequence described above is repeated. This process continues until the log is completed. At this point, the PCM connections to the DSP module are interrupted and the MF-R2 signaling is complete.

Figure 4 illustrates a form that can be used at the terminal 17 to assist the customer's technician to characterize the signing for a category of signals used in the protocol. In the left column are numbers of the 15 different signals which are displayed on the screen of the terminal 17 by the controller 1 , and in the second and third column the activity to be carried out is invited by a technician using previously defined terms . Successive data input forms are used for each category of signals in the protocol. This form can only be defined at the level of the installer, ie at the highest level of authorized access.

In the second and third column you can have up to two reactions can be entered as an answer. If both are specified or specified, the first is executed before the second. Of course, the two can Operations are not the same. The system reactions can be seen from the below described assembly block processes can be selected. At the top of the form is specified whether the form for incoming or outgoing signals is used.

In the list of program blocks that follows, each action or each process is defined by a first word, which forms the language, on what follows the function that is to be performed in response by the system.  

Assembly blocks in the leaving state

Operations that are performed in the context of an outgoing R2 register can be found below. If the process is in response to a Standard CCITT signal could be run, this signal is next to that Operation listed.

Assembly blocks for the incoming condition

It should be noted that the operations specified in detail are all together with processes that are normally in a switching center or in a The exchange office is available or installed. Accordingly, they are Individual program listings are not given here as they are for each form of a mediation office are different and because they are known to the experts are.

An exemplary second form, which is preferably used to define variants, ie to specify the initial processes and conditions and terminations, as well as the parameters for the processes of the program building blocks, such as e.g. B. listing the logical conditions for physical signals is shown in FIG .

A list and description of each of those to be identified or assigned The following fields are given.  

Field descriptions 1. Initial exit (exit) process

The initial exit process is the R2 build block process, the should be carried out if R2 signals (R2- Output signals) is started. This process is generally that Send the first digit (send_first_digit). However, in some cases you can the explicit signaling processes (send_1, send_2 etc.) can also be useful.

2. Initial state of departure

The initial exit state is the state you enter after the initial exit process has been performed. The Register remains in this state until there is either a return Contains signal from the input register or if the duration of the timeout for tones in the forward direction. When this form is submitted becomes the programmed comment compared to the queried state displayed in a protected field.

3. Category of the calling subscriber

The data in this section is used to determine the category of the list the calling subscriber (as in the service class defined) on a physical R2 signal for transmission if the Category of the calling subscriber is queried.

4. Exception handling

The signals in this section are used to point to the in Reverse signaled to respond to requests to which the outgoing R2 register cannot comply.

(a) CLI not available

This specifies that the signal will return when there is a request for the call for line identification digits has been received, however, none are available (e.g. for a tandem call if the Arrival link the number of the calling party does not transmit. If no signal is specified, none will returned. If no next state is specified, the Execution continued in the same state.

When this form is submitted, it will be compared to the queried state programmed remark in one protected field.

This exception handling is called by the "send_first_- CLI_digit operation.

(b) No more CLI digits

This defines that the signal will return when there is a request for additional CLI digits (without the first) has been received, however none are available. If no signal is specified, none will return back. If no next state is specified, the Execution continued in the same state.

When this form is submitted, it will be compared to the queried state programmed remark in a protected Field displayed.

This exception handling is supported by the "send_next_CLI_digit" - Called process.

(c) No more digits

This defines that the signal will return when there is a request for  additional digits (without CLI digits) have been received, but none Are available. If no signal is specified, none will return. If no next state is specified, execution in continued in the same condition.

When this form is submitted, it will be compared to the queried state programmed remark in a protected Field displayed.

This handling is called by the "send_next_digit" - Operation when the processing of the call specifies that the entire called number is entered and the final register another digit asks. The entire number called is called entered when the critical period (timeout) has expired completely or the last digit of the digits that programmed to follow the path (according to the program), has been received.

5. Timeout for forward tone

The timeout for a tone or character in the forward direction is maximum time during which the output register continues, a signal to send in the forward direction when a confirmation signal is sent in reverse direction is missing. It is also the maximum amount of time during which that Output register waits for a pulsed signal in the reverse direction if no signal is sent in the forward direction. If this time out occurs, the call is ended. CCITT Q.476 recommends a period of 15 ± 3 seconds.

6. Timeout without sound

The timeout without sound is the maximum time during which the Output register waits for a reverse signal that is removed after the point in time when the signal is forward  has been eliminated. If this timeout occurs, the call is ended.

7. Initial state of entry

The initial input state is the state in which the arrival register occurs when it is dimensioned for the first time. If this Form submitted is compared to the requested state programmed comment is displayed in a protected field.

8. Status signals of the called subscriber

The data in this section is used by the arrival register to the status of the called party (as he is called by the call ver work is assigned) to assign a physical R2 signal to it to be sent when the requested subscriber status is sent should. There can be more than one status of the same physical signal be assigned. If, for example, a special information tone access violations can be assigned to the query signal will. If it is not available, access violations can occur the same signal as "Table of contents number except Business".

9. Function panel for signal processing

This table arranges the digit processing operations that may be required can make a call to send the physical R2 signals to query these processes. For example, if the digit tree indicates that a further digit is required, the signal "send_next_digit" Posted.

If no signal is programmed for an operation, use the Signal processing the rules set out in section 2.1 under the function panel is specified for digit processing.  

At least one of the two "address done" conditions must be program be lubricated. If this form is submitted with another one State that for the field "Address complete, enter category", program is memorized, the comment that is programmed against this state is displayed in a protected field.

10. Delay before starting a pulse signal

This delay is inserted between the end of the transmission of the last signal of the forced cycle and the start of transmission the pulse signal (the pulsed signal). It must be in steps of 30 ms can be specified. CCITT Q.442 recommends a minimum delay of 100 ms.

11. Duration of pulse signals

This field specifies the duration of signals that are considered pulsed signals be sent. It must be specified in steps (multiples) of 30 ms will. CCITT Q.442 recommends a signal pulse duration of 150 ms.

12. Reconnection delay for the pulse signal receiver

This field indicates the time after the pulse signal in Reverse direction before the arrival receiver is reconnected can be. It is ignored in cases where the R2 register time has been terminated after the pulse signal has been sent. This delay must be specified in multiples of 30 ms. CCITT Q.442 recommends a delay of 300 ± 100 ms.

13. Pulse return signal for the expiration of the timer for the first / intermediate digit

If the timer for the first digit or for intermediate digits like them on a service class of a channel are programmed, run, defined  this field the signal which should be returned in pulse form, before the call is ended. If no signal is given, none will Posted.  

The following are completed identification forms for illustrates six separate signaling states, the first of which represents a state of sending outgoing digits, the second den State of sending outgoing CLI, the third the state of the handha bun of receiving the queried participant status after a Confirmation of the outgoing category has been sent, the fourth one State of receipt of incoming digits represented, the fifth den State of the end of signaling after the signal BJ has been transmitted represents and the sixth the state of handling the reception of the Category of the calling subscriber and the termination of the signaling after sending the status or status of the called subscriber represents. The noted assignment has been created to function as To effect R2 signaling variations from Kenya for one Switching system, which is manufactured by Mitel Corporation and with the trademark GX5000. The different signal functions, that are identified above are given in the header of each form. The operations listed correspond to the assembly block functions in this Publication previously described.

Assignment of the R2 signal state

Assignment of the R2 signal state

Assignment of the R2 signal state

Assignment of the R2 state

Assignment of the R2 state

Assignment of the R2 state

The associated variant assignment is shown below.  

R2 variant assignment

R2 variant: 1

Outgoing register parameters

Initial exit process: send_first_digit
Initial state of departure: 1 Comments: A_Send_Dgts

Category signals of the calling subscriber (1-15)
Payphone: 1
Data transfer: 1
Operator channel: 1
normal participant: 1
Priority participants: 1
Test equipment: 1

Exception handling
CLI not available (1-15): 15 Next state: 1 Remark: A_Send_Dgts
no further CLI digits (1-15): 15 next state: 1 remark: A_Send_Dgts
no further digits (1-15): next state: remark: / / / / / / /

Time-out for sound on output (1-60 seconds): 15
Timeout for sound-off output (1-60 seconds): 30

Access register parameters

Initial state of access: 4 Comments: I_Rcv_Digits

Interrogation signals for digit processing (1-15)
Send next digit: 1
Send first digit: 9
Send last digit:
Send second to last (second to last) digit: 2
Send penultimate (third to last) digit: 7
Send fourth last digit: 8

Complete handling of digit processing
Transmission mechanism for the status of the called subscriber
(CCITT, immediate, none): CCITT
Load / set language (1-15): 6
Overload / no switching (1-15): 4
Enter the category of the caller (1-15): 3
Next condition: 6 Notes: II_Catgy_Nxt

Status signals of the called subscriber (1-15)
Access violation: 5
Busy (working): 3
Overload: 4
DID channel overload: 3
DN in (park) waiting state: 3
DN out of service: 5
Free, load: 6
Free, do not load: 6
Headed for interception or RAD: 6
unassigned number: 5
Exception 1: 4 defined by the user
Exception 2: 4 defined by the user
exception 3: 4 defined by the user

Delay before starting a pulse signal (60-240 ms, 30 ms steps): 150
Pulse signal duration (90-900 ms, 30 ms steps): 150
Delay for reconnecting the pulse signal receiver (90-900 ms, 30 ms steps): 300
Pulse return signal for expiry of the timer for the first / intermediate signal (1-15): 4

It can be seen that the customer with the embodiment described above can achieve that the mediation office build the block programs from one large number of available programs that are stored in the peripheral controller stored, can identify. The result is that control programs selected from a large number of available programs cause the system to build itself up so that it Exercise between the offices according to the special local variant carries out. This is done without requiring any special effort or Attention from the manufacturer of the system and can be arbitrarily taken from that Customers are changed to accommodate the location of the mediation office to bring the protocol up to date and also with the Installation.

While the described embodiments focus on the R2 signing relate, the principles of this invention are not for use with the R2 signing limited or even to the signing between (med offices), and can be used for the self-construction of a mediation system applied to it to any other desired local state adapt.

Those skilled in the art who understand the present invention can now understand Introduce changes and other embodiments by the here make use of the concept described. These are all considered to be in the area and Considered within the scope of the invention as defined in the claims.

Claims (20)

1. Method for generating interoffice signage with:

• (a) storing program blocks in a plurality of signaling protocols, for generating commands for signaling signals in a communication switching system,
• (b) storing correlations of certain program blocks with a certain protocol for signaling functions which relate to the execution of a call to or from the communication switching system,
• (c) enabling certain of these program blocks to be executed when a particular signaling signal is to be generated when processing a telephone call to or from the communications switching system to adapt to the particular protocol, thereby enabling the communications switching system to answer calls that are on a particular protocol is limited from a plurality of protocols to process for a particular call.

2. The method of claim 1 including generating the characters output signals in a universal signal generator, which is designed is that it receives commands from the program blocks and that it is under In response, signaling signals are generated. 3. The method according to claim 1, characterized in that the universal Signaling generator is connected to a channel via a switch and that the signaling signals are transmitted to the channel via the switch are for (further) transmission to a remote communication server agency. 4. The method according to claim 1, characterized in that the characters delivery signals in a vocal cord to the remote telephone exchange or agency are transferred. 5. Method of signaling between switching centers of a communication switching system with:

• (a) storing program blocks for command processing from a signal generator for signaling and a receiver for signaling signals, in a plurality of signaling protocols;
• (b) storing the designation of certain program blocks which relate to a specific signing protocol to be used by the system,
• (c) Allow only certain of the program blocks to be processed during processing of a call to or from the system to command the signal generator to generate certain signals or to detect the receipt of certain signals received by the receiver ,
  thereby enabling the communications switching system to process calls limited to the particular protocol among the plurality of protocols.

6. The method according to claim 5, characterized by the steps that a Panel of signing functions depicting command data from one Operator can be received that focus on specific signing operations related to the functions used by the system and by processing the command data to designate the program block form. 7. The method according to claim 6, characterized in that a signal genes rator and a signal receiver are provided, the signaling signals in Can send or receive shapes that the entire plurality of Correspond to signaling signals, with the signaling generator under Responding to the commands works to only generate signals that the correspond to special protocol. 8. The method according to claim 7, characterized in that the signal genes rator and the signal receiver to a channel for transmission and Receiving signals can be connected via the channel. 9. The method of claim 8, wherein the signaling signals over the Channel can be sent and received in the voice band. 10. The method according to claim 9, characterized in that the signals are pulse code modulated. 11. Communication switching system with:

• (a) a signal generating device for generating signaling signals between switching centers,
• (b) at least one channel for sending the signaling signals,
• (c) means for connecting the signal generating means to the channel,
• (d) means for storing a plurality of program blocks for generating commands for the signaling signals in accordance with a plurality of protocols,
• (e) a device for storing identifiers of certain of the program blocks in order to control or command the operation of the signal generating device in accordance with a special, predetermined protocol,
• (f) a device for starting up the specific program blocks during the processing of a call to or from a switching office or a switching center,
  whereby communication with it is carried out in accordance with the special predetermined protocol.

12. System according to claim 11, characterized in that the device for storing the blocks and the device for storing the ident drawings is a peripheral processor memory, which is designed so that it transmits certain program blocks to the signal generating device. 13. System according to claim 12, characterized in that the device is a switch for connecting the signal generating device to the channel, which is controlled by the peripheral processor. 14. System according to claim 11, characterized in that the signal generating device from a controller for receiving the determined Program blocks and consists of a signal generator, which is from the controller is controlled to generate the signals. 15. System according to claim 14, characterized in that the signal generating device includes a receiver to be controlled by the  Controller to receive signals from another switching office. 16. System according to claim 15, characterized in that the device to connect the signal generating device to the channel a time and / or space division switching matrix. 17. System according to claim 16, characterized in that the device for storing the blocks and the device for storing the ident drawings is a peripheral processor memory, which is designed so that it the certain program blocks transmitted to the signal generating device. 18. System according to claim 17, characterized in that the switching matrix is controlled by the peripheral processor. 19. System according to any one of claims 11 to 14, characterized in that that it has a system processor for controlling the operation of the System and for generating a display, a device for receiving Has data that relies on signing functions for determining the Protocol in response to the display, a facility for Generate the identifications of the specific program blocks and for Providing the labels for the facility for storing the Has markings. 20. System according to one of claims 11 to 14, characterized in that that it has an input-output console for an operator, one System processor that controls the operation of the system and console, Means for generating a display related to the signing refers to functions, has on the console, devices for receiving the Has data entry on the console that relates to certain signals to the Set the protocol in response to the display, referring to the System processor means for generating the labels for includes certain program blocks according to this data and for Providing the labels for the facility for storing the Markings.