LT4884B - Method for intelligent network dialling analysis - Google Patents

Abstract

Invention describes the mode which is intended for the use in the telecommunication networks, consisting of at least one commutation centre (SSP), internal interface (1), being at the commutation centre (SSP), at least one terminal device (2), intercommunicating with the internal interface (1), at least one logical control device (SCP), intercommunicating with the commutation centre (SSP). By this mode, the dialling of the phone number is accepted only in the internal interface (1), thus the intellectual network (3) turns on and possibly one or several additional marks, dialled from the terminal device (2) are additionally transmitted through the commutation centre (SSP) to the logical control device (SCP). Besides, the dialling of the phone number, accepted by the commutation centre internal interface (1), is evaluated by the timer during the dialling of the phone number so, that if internal interface (1) does not receive new digits during the beforehand set period of time, the idle of the timer interrupts the turning on of the beforehand set function. According to this invention, this function is implemented by using special phone number dialling quota. If the duration of the special phone number dialling idle is over, the commutation centre (SSP) sends the end-of-dialling signal, which may not be dialled from the ordinary subscriber's device, to the logical control device (SCP)

Description

In accordance with the present invention, this function is implemented using a special telephone number dialing quota, if the special telephone number dialing downtime expires, the switching center (SSP) sends a logical control device (SCP) predetermined telephone dialing end character that cannot be dialed. from {poor subscriber Device.

The invention relates to a method of analyzing a telephone network for intelligent network dialing.

Some smart network services are implemented such that the service is activated when the subscriber dials the first digits of a telephone number or simply raises the receiver. Methods and devices for automating a subscriber's connection to a telephone network by installing programmable call logic control units or a system that automatically recognizes a subscriber's last dialed number are described in U.S. Patents 5,222,945, WO 9748238 and US 5,793,845. Typically, in such cases, the service logic control unit must dial the remaining digits of the telephone number that the subscriber dialed during later stages of the service. Usual methods and operations based on standard procedures usually complete digit-by-number dialing, as there is no practical means (due to ever-changing information and huge memory requirements) to provide the logical control unit with up-to-date details of all procedure analyzes used throughout the telecommunications network to know on a case-by-case basis how many more digits must be dialed. In addition, the call often results in a situation where the subscriber may be asked to enter more digits, but the request remains unanswered and, by standard procedures, the switching center can only respond with an error message without allowing the procedure to complete successfully and terminating the service.

In normal cases of Intelligent Networking that occurs before the whole number is taken (ie, only by picking up the receiver or accepting digits from 1 to n, where n is a lower number than the total number of digits needed to complete the service), number from the switching center digit after digit using the sequence described below

The most straightforward way to solve problems that obstruct conventional methods would be to create a logical control unit (SCP) database with a full copy of the telecommunication network numbering scheme so that the exact number of digits remaining in each case could be queried in a single operation. However, such a copy of the numbering scheme would take up too much system memory and, in addition, would require immense administrative and other management costs. In practice, such a comprehensive option is neither economically nor technically feasible.

Thus, today, such services must be provided in the usual manner, which will be described in more detail later, dialing the remaining digits of the telephone number one by one.

Sometimes, if the subscriber is not experienced, following the above procedure and without knowing the numbering scheme beforehand, the system requests an additional one digit more, which causes the logical control unit to fail and the request is unsuccessful.

One of the previous technical problems in this field was that turning on a smart logic control by dialing a number is not enough to make decisions and trigger subsequent actions on a logical control, usually does not provide the logical control with sufficient information about the remaining digits to be dialed by the subscriber. , quantity.

The previous methods had the following disadvantages:

an incorrect expression of the analysis results in a situation where the requested digits are one by one renders the entire query null and void.

A sharp increase in the information flow between the service control point / logic control unit (SCP) and the service switching point (SSP) occurs when the digits have to be queried one after the other. However, without a copy of this additional digit-after-digit request flow and numbering scheme, it is not possible to perform a telephone dialing analysis at the service control site to ensure that the additional digit is not requested when the actual last digit is dialed.

This situation can be avoided without even trying to dial all digits (given that the service allows this), and the smart grid logic controller should not address all digits collected by the subscriber. Because service-related information is very often transmitted to an external device from a smart-network logic control device, this data is not sufficient to compile the entire sequence of digits collected by the subscriber because the entire sequence was not (could not be) requested from the switching center.

The part of the control program that has telephone dialing analysis needs to be compiled in a very sophisticated way with the device to control every possible number sequence, no matter its length, where 09-6061, for example, is a 4-digit number where, number sequences beginning with 09-6062-9 have (or may have) up to 8 digits.

The object of the present invention is achieved by always programming a switching center (SSP) to append an interrupt character (e.g., a hexadecimal value F) to the end of a subscriber's dialed sequence when the subscriber no longer dials (or even begins to dial) and switching downtime is recorded. In this case, the command to collect as many (more than realistically possible) digits can be given, so that the above method prevents an error condition from occurring during the process, i.e. prevents unsuccessful call attempts if the required number of digits has not been dialed before the dialer timer idle. Typically, the dialing procedure responds to shorter downtime (usually between 3 and 7 seconds) on a telephone dialing program than those programmed in switching centers. Hereinafter, this shorter-than-normal phone number timer downtime is called special telephone number downtime.

More specifically, the method of the invention is characterized in the preamble of claim 1.

The invention provides significant advantages. Telephone dialing analysis on a Smart Network Logical Controller (SCP) or similar external logic controller based on information collected by the switching center is significantly simplified, has less programming code and therefore less human sensitivity due to its linear design ( programming) errors.

The flow of information between the Logical Controller (SCP) and the Switching Center (SSP) has been significantly reduced when connecting to a smart network (for example, INAP at Origination_Attempt, Origination_Attempt_Authorized) (TDP1), Collectedjnformation (TDP2), or Analyzedjnformation (TDP3)) occurs at the beginning of an incomplete phone number dialing sequence (without entering the call destination address).

Because all logic controllers can be tuned to require digits greater than the number the subscriber must dial, the intelligent network logic control (SCP) always has information on the total number dialed by the subscriber needed to, for example, forward to external devices for processing or similar operations.

The invention allows the logic control unit to immediately query a large enough number of remaining digits without interruption without interrupting a call attempt (which occurs in conventional ways), even if all requested numbers are never accepted.

This saves switching center and logic control unit installed power by eliminating the need to retry the remaining digits one by one and, in addition, reducing the number of unsuccessful call attempts, thereby significantly reducing the information load on the switching centers.

The invention will now be described in more detail with reference to embodiments illustrated in the drawings, in which:

Fig.1 is a diagram depicting a conventional method for analyzing a smart phone number dial;

Fig. 2 is a diagram illustrating an embodiment of the present invention suitable for smart phone dialing analysis;

Figure 3 is a diagram illustrating a method based on the present invention suitable for smart phone dialing analysis; and

Fig. 4 is a diagram illustrating an embodiment of the present invention.

The method of the present invention is characterized by its ability to compensate for the disadvantages of conventional methods. Thanks to the invention, the flow of information between the switching center (SSP) and the control location / logic control unit (SCP) is reduced to a minimum and telephone number analysis is simplified. According to the present invention, it proceeds as follows:

the switching center software is modified to enable the "Collect more numbers" function between the logical control unit (SCP) and the switching center (SSP) (for example, INAP by enabling ReuuestReportBCSMEvent [Event detection Point 2 (EDP2 )] + Collect Information operation) does not force the switching center to stop the call attempt even if the subscriber has not dialed in, but instead activates the so-called Inter digital timer time-out function (fig.1: function of known technical level) , stage xiii).

Instead of calling the call attempt to be supported by an error, the switching center inserts a character that cannot be dialed by a normal subscriber device, into the dialed sequence or, if no digits are dialed, only this single character

Signs in this category are, for example, decimal signs, such as hexadecimal F (hexadecimal computing systems F), for example (Fig.2: new function, step iv).

Instead of asking for the remaining digits one by one (fig.1: prior art function, steps ii-xi), the SCP uses the "Collect more numbers" command or, as a rule, only once to request the number of digits is certainly sufficient (Fig. 2: New function, step ii), or perhaps several times according to example 2 of the new function (Fig. 3: New function, step v) if the hexadecimal F character has not yet been accepted in step iv.

The SSP forwards the subscriber's telephone dialing operation to the SCP (for example, INAP by enabling the EventReportBCSM operation), either because the subscriber has dialed the number of digits ordered in Step 2 (according to a known technical feature) or because the subscriber dialed from 0 to n digits followed by telephone number downtime, and thus the sequence compiled in step 1 is supplemented by a hexadecimal interrupt character F (new procedure) (Fig.2: new function, step iv). The new procedure automatically sets the SSP phone number downtime to shorter (usually half or approx.) Than to normal calls (special phone number downtime) on the basis that EDP2 activation is detected. Thus, according to the present invention, special telephone number downtime is used.

The SCP analyzes the last digit of the assembled sequence as follows:

if the digit is a hexadecimal F, there is no need to ask for additional digits as all digits are accepted (a conclusion made possible by the new procedure);

if the number is not a hexadecimal F, steps 2-4 must be repeated until the hexadecimal F is detected or all digits collected are detected.

Figure 1 illustrates an embodiment of the prior art:

(i) the service shall be started at enable (for example, INAP by enabling the InitialDP operation) (for example, at Trigger Detection Point 3);

(ii) requesting another digit by turning on EventDetectionPoint 2 (for example, INAP, enabling RequestReportBCSMEvent [Event Detection Point 2 (EDP2)] + Collect Information) and using the normal switching center telephone dialing idle function; iii) telephone dialing idle timer;

(iv) send one digit more than requested (+ all preceding digits) (for example, INAP by enabling the EventReportBCSM operation);

v) The logic control software analyzes the accepted number of digits and compares it with the information stored in the numerical memory of the various codes and then decides to query the next digit.

Here, another digit is requested by turning on EventDetectionPoint 2 (for example, INAP, enabling ReuuestReportBCSMEvent [Event Detection Point 2 (EDP2)] + Collect Information) and using the normal switching center telephone number downtime.

(vi) the telephone number downtime timer is activated;

(vii) sending one newly requested digit (+ all preceding digits) (for example, INAP by triggering an EventReportBCSM operation);

(viii) the logic control software analyzes the number of received digits, compares it with the information stored in the various digits of the code, and then decides to query the next digit.

Here, another digit is requested by turning on EventDetectionPoint 2 (for example, INAP, enabling ReąuestReportBCSMEvent [Event Detection Point 2 (EDP2)] + Collect Information) and using the normal switching center telephone number downtime.

(ix) the telephone number downtime timer is activated;

x) sending one newly queried digit (+ all previously accepted digits) (for example, INAP by activating an EventReportBCSM operation);

(xi) The logic control software analyzes the number of received digits, compares it with the information stored in the various digits of the code, and then decides to query the next digit.

Here, another digit is requested by turning on EventDetectionPoint 2 (for example, INAP, enabling ReąuestReportBCSMEvent [Event Detection Point 2 (EDP2)] + Collect Information) and using the normal switching center telephone number downtime.

(xii) the telephone number downtime timer is activated;

(xiii) When no more digits are received from a subscriber, the switching center switches to normal telephone call timer idle, a call attempt error occurs, and the call attempt and thus the service are terminated.

Figure 2 illustrates in more detail the method of the present invention:

(i) the service starts at enable (for example, INAP by enabling InitialDP operation) (for example, at trigger detection location 3);

ii) Requires the number of remaining digits that should really be sufficient (for example, 8 digits) when turning on EventDetectionPoint 2 (for example, on the INAP network, on ReuuestReportEvent [Event Detection Point 2 (EDP2) j + Collect Information). At the same time, SSP initiates a special telephone number downtime to receive dialed digits.

(iii) special telephone number downtime is activated;

(iv) when the subscriber dials, for example, five more digits and then stops dialing, a special telephone number downtime is triggered and the switching center confirms that dialing is complete, so the switching center sends new digits plus any other digits previously accepted by turning on this service and appends the hexadecimal character F to the end of the assembled sequence (for example, INAP by enabling the EventReportBCSM operation);

(v) the operation continues as scheduled in the service software. An alternative embodiment of the invention illustrated in Figure 3 is implemented as follows:

(i) the service starts at enable (for example, INAP by enabling InitialDP operation) (for example, at trigger detection location 3);

ii) Requires the number of remaining digits that should really be sufficient (for example, 4 digits) when you enable EventDetectionPoint 2 (for example, INAP by enabling the ReuuestReportEvent [Event Detection Point 2 (EDP2)] + Collect Information operation). At the same time, SSP is continuing its dedicated telephone number downtime to receive dialed digits;

(iii) special telephone number downtime is activated;

iv) During this step, the 4 newly queried digits plus any other digits previously accepted when sending this service are sent but without the addition of a hexadecimal character F (for example, in INAP this can be implemented by enabling the EventReportBCSM operation

v) Request a new number of remaining digits that should really be enough (for example, 4 digits) by turning on EventDetectionPoint 2 (for example, INAP, by turning on ReuuestReportEvent [Event Detection Point 2 (EDP2)] + Collect Information). At the same time, SSP is still continuing its dedicated telephone number downtime to receive dialed digits;

(vi) special telephone number downtime shall be activated;

vii) when the subscriber dialed, for example, another 2 digits and then stopped dialing, a special telephone number downtime is triggered and the switching center confirms that dialing is complete, so the switching center sends new digits plus any other digits previously accepted by turning on this service and appends the hexadecimal character F to the end of the assembled sequence (for example, INAP by enabling the EventReportBCSM operation);

(viii) the operation continues as scheduled in the service software.

As shown in Figure 4, the method of the invention is for use in a telecommunications network having at least one internal interface 1, a switching center (SSP), at least one terminal device 2 communicating with an internal interface 1, at least one switching center (SSP) communicating with a terminal device. , and at least one logical control unit SCP communicating with the switching center. The telephone number dialed according to the invention is received by the internal interface 1 as digits dialed by the subscriber from the terminal device 2, thereby triggering the intelligent network 3. The subscriber may further specify that one or more characters collected from the terminal device 2 be transmitted through the switching center. (SSP) internal interface 1 to the logical control unit SCP. In addition, dialing accepted by the switching center 1's internal interface is evaluated by the telephone dialing timer such that if the switching center's internal interface 1 does not accept digits during a predetermined timer idle, the timer idle time ends by activating a predefined function. The function of the present invention is accomplished by using a special telephone number downtime that is different from the normal telephone number downtime, and when the special telephone number downtime ends, the switching center (SSP) sends it to the logical control unit

SCP predefined end-of-line dialing character that cannot be dialed from a subscriber's normal terminal device 2.

According to a preferred embodiment of the invention, the end of the dialing sequence is added by transmitting the last digit from the terminal unit 2 and receiving it at the switch center internal interface 1. The internal interface 1 can be, for example, a trunk access line, ISDN converter, radio network or terminal unit.

Claims (9)

DEFINITION OF INVENTION EN 4884 B An intelligent network telephone numbering analysis in a telecommunication network comprising at least one switching center (SSP), an internal interface (1) at a switching center (SSP), at least one terminal device (2) communicating with an internal interface (1), a method of at least one logical control unit (SCP) communicating with a switching center (SSP), wherein: - dialing the telephone number is received via the switching center's internal interface (1), followed by smart network activation (3) and possibly one or more additional digits dialed from the terminal unit (2) being sent via the switching center (SSP) to logical control unit (SCP), and - dialing the telephone number received by the switching center's internal interface (1) is evaluated by a telephone dialing timer such that if the internal interface (1) does not accept digits within a predetermined timer idle period, the timer idle interrupts the activation of a predefined function. that - uses a special telephone number downtime different from normal telephone number downtime that has a predetermined downtime value that is different from a predefined normal telephone number downtime, and - when the special telephone number downtime is expired, the switching center (SSP) sends a predetermined end-of-telephone dialing sequence signal to the logical control unit (SCP), which cannot be retrieved from a conventional subscriber terminal device (2). 2. A method as claimed in claim 1, characterized by adding the end of the dialing sequence after the last digit sent from the terminal device (2) and received at the internal interface (1) of the switching center. 3. A method as claimed in claim 1 or 2, further comprising inserting a dialing end character, which is a decimal, such as a hexadecimal D, E, or F. 4. A method according to claim 1 or 2, characterized in that the activation of the intelligent network (3) is initiated by lifting the handset of the terminal device (2). 5. A method as claimed in claim 1 or 2, wherein the activation of the intelligent network (3) is performed according to the first digits collected from the terminal device. 6. A method as claimed in claim 1 or 2, characterized in that the activation of the smart network (3) is performed according to the analysis of the dialed telephone number performed on the digits collected from the terminal device (2). 7. The method of claim 1, wherein, upon activating the smart network, requests a predetermined number of digits. 8. The method of claim 1, wherein the special telephone dialing downtime is set to half the normal telephone dialing downtime. 9. A method as claimed in any one of the preceding claims, further comprising: commanding the collection of more digits than is reasonably possible, thereby avoiding an error condition in the procedure, i.e. unsuccessful call attempt if the requested number of digits is not dialed before the telephone call timer idle.