EP1488395A1

EP1488395A1 - Mobile telecommunication equipment, short-distance send/receive module which can operate with said mobile telecommunication equipment and a method of detecting the theft of said equipment

Info

Publication number: EP1488395A1
Application number: EP03738190A
Authority: EP
Inventors: Therisien Philippe Le; Christian Junker; Jean-Luc Roussel
Original assignee: France Telecom SA
Current assignee: Orange SA
Priority date: 2002-03-27
Filing date: 2003-03-25
Publication date: 2004-12-22
Anticipated expiration: 2023-03-25
Also published as: ATE309588T1; ES2252678T3; DE60302228D1; FR2838014A1; WO2003081551A1; AU2003244707A1; FR2838014B1; DE60302228T2; EP1488395B1

Abstract

The invention relates to a mobile telecommunication equipment (1) and a method of detecting the theft of one such equipment. According to the invention, an alarm module (6) for the equipment (1) comprises a short-distance sender/receiver (6a) which can, as a minimum, receive at least one code identifying the owner of the equipment (1) from a short-distance send/receive module (7) which is external to said equipment. A memory element (6d) of the alarm module (6) is used to store at least one equipment (1) owner identification code. A microcontroller (6c) of the module (6) receives the received identification code from the sender/receiver (6a) and compares same to at least one equipment (1) owner identification code which is stored in the aforementioned memory element (6d), such that, when the identification code received is not the same as the stored identification code, the alarm module (6) is activated. Moreover, the module (6) is also activated when the sender/receiver (6a) receives no code. The invention also relates to a short-distance send/receive module which is intended to send at least one identification code to the sender/receiver (2a), said module being integrated into a fixed or mobile element (7).

Description

Mobile telecommunication equipment, short distance transceiver module capable of operating with this equipment and method of detecting theft of this equipment

The present invention relates to mobile telecommunication equipment, a short distance transceiver module capable of operating with this equipment and a method for detecting theft of this equipment.

More particularly, the present invention relates to mobile telecommunications equipment comprising: - dialogue means intended to communicate with an alarm management server via a mobile telecommunications network.

Such equipment is for example described in French patent application No. 01 12292 in the name of the applicant.

More precisely in this document, the alarm module is a stimulus detector connected to the dialogue means in such a way that when said detector detects a stimulus (presence or absence of electric current in the equipment, noise, light, heat, displacement equipment, movement near the equipment), the dialogue means send at least one alarm message to an alarm management server. The first drawback of such an alarm module lies in the fact that it minimizes the mobile telephony part.

Another drawback lies in the fact that the stimulus detector must be as discreet as possible, while the telecommunications equipment to be protected is naturally visible since it is used in its current use. The stimulus detector, when found by the thief, is usually destroyed or thrown away. The stolen telecommunications equipment is not supposed to be destroyed by the thief, but some of its components can be modified (SIM card for example). Such components are therefore to be better protected. Finally, the stimuli and the operating mode of the alarm module are not perfectly suited to the use of telecommunications equipment. mobile. The stimuli detectors mentioned in French patent application No. 01 12292 are too complex or too bulky or too expensive to miniaturize. In fact, mobile telecommunication equipment of the mobile telephone type becomes smaller and more manageable over the years and cannot or must be encumbered with marginal components which are too bulky or too costly to miniaturize, and therefore, in certain cases, unsuitable.

The object of the present invention is in particular to remedy the aforementioned drawbacks by proposing telecommunications equipment which comprises, in addition to its conventional functions, a compact alarm module, simple to manufacture and inexpensive.

To this end, said telecommunication equipment is characterized in that the alarm module comprises:

an alarm module connected to the dialogue means so that when the alarm module is activated, the dialogue means send at least one alarm message to the alarm management server,

- short-distance transmission-reception means able at least to receive, from a short-distance transmission-reception module external to the mobile telecommunications equipment, at least one identification code of the owner of the mobile telecommunications equipment, - storage means capable of containing at least one identification code of said owner of the telecommunications equipment,

- And comparison means able to receive, from said transmission-reception means, the identification code received and to compare the latter with at least one identification code of the owner of the mobile telecommunications equipment which is contained in said storage means, such that when the identification code received is not equal to the stored identification code, the alarm module is activated.

In a preferred embodiment of the module according to the invention, recourse is had to one and / or the other of the following arrangements: the short-distance transmission-reception means of the alarm module are, in addition , capable of transmitting, towards the transceiver module external short distance, a request for the supply of at least one identification code of the owner of the mobile telecommunications equipment;

the short-distance transmission-reception means of the alarm module and the external short-distance transmission-reception module are both of the Bluetooth type;

the short-distance transmission-reception means of the alarm module and the external short-distance transmission-reception module are both of the 802.11 b type;

the short-distance transmission-reception means of the alarm module and the external short-distance transmission-reception module are both of the type

HomeRF;

the short-distance transmission-reception means of the alarm module and the external short-distance transmission-reception module are both capable of transmitting one or more identification codes which are supplied by the manufacturer of said equipment or which are entered into memory by the owner of said equipment;

the short-distance transmission-reception means of the alarm module are capable of receiving one or more identification codes coming from said external short-distance transmission module, the latter being chosen from the group comprising modules of the type Bluetooth, 802.11 b, HomeRF and of the type capable of transmitting one or more identification codes which are supplied by the manufacturer of said equipment or which are entered in memory by the owner of said equipment;

the identification code transmitted by the short-distance transmission-reception means of the alarm module remotely authenticates the legitimate owner of said mobile telecommunication equipment;

- the equipment is a mobile phone;

- The mobile phone includes an electronic identification module which is removable; - The mobile phone includes an electronic identification module which is fixed; - The mobile phone includes two electronic identification modules, one being removable, the other being fixed;

- The mobile telephone further comprises a stimulus detector which is connected on the one hand to means of electrical supply of said equipment, and, on the other hand, to the dialogue means and to the alarm module;

the stimulus detector is capable of being triggered provided that the part of the mobile telephone using the fixed identification module is in operation and that the part of the mobile telephone using the removable identification module ceases to be in operation; the stimulus detector is capable of being triggered at any time, whatever the operating mode of the parts of the mobile telephone using the fixed identification module and / or the removable identification module respectively;

- when the alarm module is not activated, the absence, after a certain time, of reception of certain stimuli, makes it possible to automatically obtain a significant energy saving by switching off the mobile telecommunication equipment ;

- when the alarm module is activated, it receives information corresponding to different calibrated stimuli. The present invention also relates to a short distance transceiver module intended to send at least one identification code to short distance transceiver means contained in the mobile telecommunication equipment according to the invention, said module being characterized in that said module is integrated into an element intended to be fixed or mobile. In a preferred embodiment of the module according to the invention, one and / or the other of the following arrangements are used:

the element is chosen from a key ring, a means of rigid protection of said mobile telecommunication equipment, a portable terminal of PDA type, a portable music player, a card reader, an electronic equipment; - the module is of the Bluetooth or 802.11 b or HomeRF type;

- the module includes an activation means capable of being controlled by the owner of the mobile telecommunications equipment.

The present invention also relates to a method for detecting theft of mobile telecommunication equipment according to the invention, such a method being characterized in that it comprises the following steps: a) the short-distance transmission-reception means of the alarm module receive or not receive at least one identification code of the owner of the mobile telecommunication equipment coming from a short-distance transceiver module external to the mobile telecommunication equipment, b) if the means short-distance transmission-reception receive said identification code, the comparison means of the alarm module compare the identification code received with at least one identification code of the owner of the mobile telecommunication equipment which is contained in the storage means of the alarm module, c) if the short-distance transmission-reception means do not receive said identification code or if said code received by the mobile telecommunications equipment is not equal to said at least one stored identification code, the dialogue means of the mobile telecommunications equipment send at least one alarm message to the alarm management server from the use of at least one service provided by mobile telecommunications equipment.

In a preferred embodiment of the method according to the invention, one and / or the other of the following arrangements are used:

- prior to step a), the short-distance transmission-reception means of said alarm module transmit towards said external short-distance transmission-reception module a request for the supply of at least one identification code of the owner of the mobile telecommunications equipment, the transmission of such a request being carried out at fixed time intervals or else during the use, by a holder of said equipment, of at least one functionality of the latter;

- in step c), the service operates minimally; - the functionality of the mobile telecommunication equipment is chosen from the group comprising putting the equipment into a standby state, recharging the means of electrical supply of the equipment, sending / receiving calls by the 'equipment, the change of electronic identification module of the owner of the equipment;

- the service provided by the telecommunications equipment is chosen from the group comprising the use (communications, sending of short messages of SMS, WAP, Internet type, data transfer, etc.) of a prepaid card, the use of '' a fixed price, access to a directory or an agenda, consultation of an electronic mail, a voice mail, files, data transfer, the use of videos or games.

Other characteristics and advantages of the invention will appear during the following description of four of its embodiments, given by way of nonlimiting example, with reference to the appended drawings in which: - Figure 1 is a diagram of the general architecture of a theft detection system for telecommunications equipment according to the invention,

- Figures 2A, 2B, 2C and 2D are respective block diagrams of a first, second, third and fourth embodiment of the telecommunications equipment of Figure 1, - Figures 3A and 3B are respective flow diagrams d 'a first and a second embodiment of the method of detecting theft of telecommunications equipment according to the invention.

We will now describe, with reference to FIG. 1, the general architecture of the theft detection system in which the mobile telecommunication equipment and the short distance transceiver module according to the invention are integrated.

The mobile telecommunication equipment is designated by the reference numeral 1. In the example shown, the equipment 1 is a mobile telephone. The mobile telephone 1 comprises dialogue means 2 intended to communicate with an alarm management server 3 via a base station 4 (BTS) belonging to a mobile telecommunications network 5, for example the GSM network (Global System for Mobile communications). As described in French patent application No. 01 01527, the server 3 is intended to receive, from the mobile telephone 1, an alarm message which it sends back to telecommunications equipment 9 belonging to the owner, for example on the landline (home or office) of the latter. In the example shown, the alarm message is a short SMS message, for example entitled "Alarm".

The mobile telephone 1 also communicates with an external short-distance transceiver module 7 which will be described in more detail in the following description.

As can be seen in FIGS. 2A to 2D, the mobile telephone 1 also comprises an alarm module 6 which is connected to the dialogue means 2 so that when the alarm module 6 is activated, the means of dialog 2 send at least one alarm message to server 3.

As can be seen in FIGS. 2A to 2D, the dialogue means 2 of the mobile telephone comprise, in a known manner as such:

- a central processing unit 2a,

a radio wave transceiver 2b connected to said central unit, an antenna 2c connected to the transceiver 2b and ensuring the actual transmission and reception of radio waves received from the telecommunications network 5. To this end, the antenna 2c is controlled by an amplifier (not shown),

- a subscriber identification card or SIM card 2d (“Subscriber Identification Module”) which is connected to the central unit 2a and in which resides in particular a program called “Toolkit” known as such for carrying out internal processing (calculation, data management),

- a data memory 2e which is connected to the central unit 2a,

a program designed to allow the module 2 either to send short messages (SMS) or SMS to the server 3 via the base station 4 and the network 5, or to receive such messages from the server 5, said program residing either in the SIM card 2d (when it is not removable: FIG. 2B), or in the memory 2e, or finally in second non-removable SIM cards 2f or 2g, as shown in the figures 2C and 2D and described in the following description respectively with reference to the third and fourth embodiments.

When the mobile telephone 1 is stolen, the above program is further designed to transmit towards the server 3 location messages from the mobile telephone 1. The location information contained in these messages is then stored either automatically or periodically, in memory 2e if it is a Bluetooth location as described in French patent application n ° 01 12292 in the name of the applicant, or else in the alarm management server 3, s' it is a GSM location. In the latter case, such localization can be carried out by triangulation, a technology well known and mastered at present. Still with reference to FIGS. 2A to 2D, the alarm module 6 of the mobile telephone 1 comprises:

a short distance transceiver 6a connected to the central processing unit 2a and able at least to receive, from the short distance transmission / reception module 7, external to the mobile phone 1, an identification code of an owner of mobile phone 1, or of a person authorized to use such a phone,

a decoder 6b connected to the transceiver 6a and capable of decoding the identification code received,

a microcontroller 6c connected to the decoder 6b and able to compare the decoded identification code with an identification code of the owner of the mobile phone 1 which is recorded in a memory 6d connected to the microcontroller 6c, so that when the code d the identification received is not equal to the memorized identification code the alarm module 6 is activated.

The module 6 is also able to be activated when the short-distance transceiver 6a does not receive any identification code from the module 7. In this case, the decoder 6b affects the absence of reception of identification code a code comprising for example a series of zeros. Such a code is then compared in the microcontroller 6 in the same way as described above.

The dialogue means 2, as well as the alarm module 6 are moreover supplied in a conventional manner by a battery 8.

In the example shown, the short distance transceiver 6a is of the Bluetooth type with a radius of action limited for example to 10m. However, it can be any other short distance transceiver, of the 802.11 b or HomeRF type for example, capable of transmitting and receiving an identification code characterizing the persons authorized to use the mobile telephone 1. These three types of Short-distance transceivers, Bluetooth, HomeRF or 802.11b, operate in the same frequency band (ISM 2.4 Ghz) which is theoretically available worldwide without a license.

It can even be envisaged that the short distance transceiver 6a of the alarm module 6 is able to pick up identification codes coming from short distance transceivers belonging to different technologies.

It should also be noted that the Bluetooth identification code of the alarm module 6 can be transmitted following the request from an external equipment having a Bluetooth transceiver, as soon as the mobile telephone is switched on. Indeed, simply turning on the mobile phone also turns on the alarm module which can then issue, after request, its identification code, without the need to enter the PIN code on the mobile phone . Obtaining this identification code therefore makes it possible to authenticate remotely, without the need to introduce a PIN code, the legitimate owner of the mobile telephone 1, as described in French patent application n ° 01 01527

In the example shown, the short distance transceiver module 7 is also of the Bluetooth type with a radius of action limited for example to 10m. It can however be any other short-distance transceiver, of type 802.11 b or HomeRF or other, existing or to come, and having an identification code or capable of storing one or more identification codes.

As shown in FIG. 1, the short distance transceiver module 7 is integrated into an element which is fixed or mobile. Such an item is normally in the possession of the rightful owner. In the example shown, it is a key ring.

As an alternative to the keychain, the short distance transceiver module 7 could be:

a rigid protective cover for the mobile phone 1 in which a Bluetooth chip is integrated, such a cover having to be used compulsorily at the same time as the phone when recharging the latter, this for the sake of always having the mobile phone and the cover in good working condition, said cover must also be worn separately from the telephone when the latter is in use, by serving as a telephone holder attached to the belt for example, so that the automatic security process described below can operate,

- any element adaptable to the mobile phone during recharging, such as in particular the owner's Bluetooth headphones or microphone (or other),

- a personal digital assistant (PDA), a portable music player or a card reader (with or without chips) ..., carried permanently by the owner and normally physically separated from his mobile phone 1, but in fact connected to the latter by a proximity radio link (Bluetooth or other).

- any electronic equipment incorporating a Bluetooth transceiver (personal computer, vehicle, household or office equipment ...) and kept within reach of the owner using the mobile phone. In the case of a vehicle, such a mobile phone left in the vehicle, could serve as a theft detector, as soon as the mobile phone is taken alone by the thief who thus moves away from the vehicle, and should thus make it possible to “track The thief, and possibly the stolen vehicle. Referring again to Figure 1, the alarm management server

3 is operated by a telecommunications operator or by a third-party supplier of the “mobile phone theft detection” service to which the owner of the mobile phone 1 has previously subscribed. The server 3 comprises a database which contains at least the following parameters:

- number of SMS messages to send in the event of an alarm, - list of persons or entities authorized by the owner of the telephone to whom to send SMS messages,

- operating time of the alarm module 6,

- date, time, location information of the mobile phone 1.

These parameters are liable to be modified at will by the owner of the mobile telephone 1 by connecting the latter to the server 3.

According to a first operating mode or “mode 1” of the mobile telephone 1 shown in FIG. 2A, the microcontroller 6c of the alarm module 6 controls the transceiver 6a so that the latter transmits towards the key ring 7 a request to provide at least one Bluetooth identification code for the owner of the mobile phone 1.

The transmission of such a request is carried out whether or not the mobile telephone 1 is within the operating range of the key ring 7. It is moreover carried out at fixed time intervals or else during use, by a holder of the mobile telephone 1, of at least one functionality of the latter. As can be seen in FIG. 3A, such functionality consists for example of:

- putting mobile phone 1 into standby state (test A),

- recharging the battery 8 (test B),

- activation of the transceiver 2b of the mobile telephone 1 (test C),

- change of 2d SIM card (test D),

- the search for access to memory contents (calendar, directory, games, videos, files, emails, SMS, ...) (tests not shown).

Following receipt of this request, three cases may arise: ^1st case: the key ring 7 is energized

If the keychain 7 is powered up, it sends a Bluetooth identification code to the transceiver 6a of the alarm module 6.

The code received is decoded by the decoder 6b and then compared to the identification code recorded in the memory 6d using a program designed in the microcontroller 6c (test E in FIG. 3A).

If the mobile telephone 1 is located within the range of the key chain 7, the identification code received is equal to the stored identification code. Consequently, the mobile telephone 1 functions normally as if the user of the latter was the owner or an authorized person.

If the mobile phone 1 is not located within the range of the key chain 7, the identification code received by the mobile phone 1 cannot be that of the key chain. If the code received (from another electronic device) is an authorized code (identical to one of the stored identification codes), the mobile telephone 1 operates normally. If the received code is not enabled or if the mobile phone 1 does not receive any code, the alarm module 6 is nevertheless activated, as described above in the description.

In addition, as soon as at least one service provided by the mobile telephone 1 is used, the activation information of the alarm module 6 is then transmitted, via the central processing unit 2a, to the transmitter- mobile phone receiver 2b 1. The latter immediately sends an SMS alarm message to the telecommunications network 5 via the base station 4 with which it is in contact when the module is activated 6. This SMS message is then received by the alarm management server 3. As can be seen in Figure 1, the latter returns this message, in the same form (text) or in a different form

(voice message, electronic message, etc.), on a telecommunication station 9 (landline, mobile or Internet or other) belonging to the owner of the mobile phone 1 or to a third person chosen by the owner.

Preferably, the service provided by the mobile telephone 1 to the thief or to the unauthorized person operates minimally. For example, in the case where the mobile telephone 1 works with a prepaid card, the mobile telephone 1 indicates to the thief or to the unauthorized person that the account is at zero. This assumes that the account management servers of mobile phone 1 have been notified, following confirmation of the flight by the owner to the operator.

If, in another example, mobile phone 1 operates on a flat rate, mobile phone 1 displays a “breakdown” message to the thief or the unauthorized person.

Another example of minimized service can also consist in the non-access, by the thief or the unauthorized person, to the directory and / or agenda of the owner of the mobile phone 1. The mobile phone 1 then indicates blank files, as if none information was not recorded. It is ensured that any recording by the thief is carried out in another partition of the memory 2e of the mobile telephone 1. This new data is kept in said memory and does not overwrite the previous ones.

The alarm message received by the server 3 allows the administrator of the latter to warn, either automatically or manually, following the confirmation by the owner that his mobile phone 1 has been stolen, the police or the authorized entity, that mobile phone 1 has been stolen and that it is currently located in a given geographical area. For legal and confidentiality reasons, the owner should never be informed of the location of his stolen mobile phone, unless the phone is in official premises ("found objects", "police stations", "agency of operator "...). Only the competent and authorized authorities will be. In the event that the stolen mobile telephone 1 is moved by the thief or the unauthorized person, the alarm module 6 has the option of locating itself at the various BTS 4 base stations that it encounters on its route. This location information is collected from a base station controller BSC (not shown) which groups together several base stations 4 and thus defines geographic areas. This location can be a GSM triangulation, a well-known method, or any other conventional location system using GSM networks,

GPRS, UMTS, etc. or other networks of terminals transmitting an identification code over a short distance. These transmitting terminals can be of the Bluetooth, 802.11b or HomeRF type, known as such.

More particularly in the case where the network used for localization is of the Bluetooth type, each transmitting terminal is provided with a chip or integrated circuit of the “Bluetooth” type as described in French patent application No. 01 01527 in the name of the plaintiff. If the user is not usually authorized by the owner to use mobile phone 1:

• It is a temporary loan and in this case, such a loan is the responsibility of the owner of the mobile phone 1. The owner must either stay close to the user in order to keep the alarm module deactivated 6, either lend the keychain 7, or authorize the use of another keychain or electronic equipment comprising a Bluetooth chip, the associated Bluetooth identification code of which is stored in the memory 6d of the alarm module 6 .

• he is a thief. In such a case, the thief who does not hold the key ring 7, will end up being outside the range of the key ring 7, which will trigger the activation of the alarm module 6 in the same way described above. For added security, we can even imagine that the owner can deactivate his keychain.

2nd case: the keychain 7 does not work or has been forgotten by the owner of the mobile phone 1

In this case, the short-distance transceiver 6a of the mobile phone 1 cannot receive an identification code from the key chain 7, whether or not the mobile phone 1 is within the range of the carrier. keys 7. This has the effect of activating the alarm module 6 and triggering the sending of a alarm message by the transceiver 2b when using at least one service provided by the mobile phone 1.

If the rightful owner uses mobile phone 1, he is then taken for a thief. The fact that mobile phone 1 no longer works as it is supposed to, leads the owner to:

- either no longer use it, until recovery of a key ring 7 in normal operating condition,

- or deactivate the alarm module 6 using a security protocol according to which the owner must type on the keypad of his mobile phone 1:

• either a so-called “long” code which is different from the PIN code,

• or the first Bluetooth identification code stored in the memory 6d of the alarm module 6 followed by an arbitrarily short code (for example the last characters of the “long” code).

For the safety of the process automation, the deactivated mode of the alarm module 6 is only ensured for a period of maximum duration (1 hour for example). The duration of such a period is part of the operating parameters of the service. Once the period has elapsed, the alarm module 6 is automatically reactivated. This operating cycle ends when the key ring 7 returns to normal operation.

3rd case: the alarm module 6 is deactivated and the owner of the mobile phone 1 (or the person using the mobile phone 1) moves away from the key ring 7.

In this case, during normal use of the mobile telephone 1 (telephone conversation, data exchange, etc.), the latter operates with the alarm module 6 deactivated. As soon as the use has stopped, the alarm module 6 is activated. As soon as one of the functionalities of the mobile telephone 1 cited above is used, the alarm module 6 is activated if it is outside the range of the key ring 7, or otherwise is deactivated. In case the alarm module remains activated, the legitimate owner will then be aware of the change in operation and act accordingly (return to the key chain or deactivation of the alarm module according to the secure protocol).

It should also be noted that the detection of theft of the mobile telephone 1 is based on the fact that:

- all authorized Bluetooth identification codes saved in the memory 6d of the alarm module 6 cannot be accessed in clear (even by the owner), - any new Bluetooth identification code can only be saved through the above-mentioned security procedure,

- the saved identification codes cannot be erased without going through the security protocol mentioned above,

- the protocol using a "long" code is always a possible option to use, in particular in the event of loss, theft, forgetting or non-functioning of the key ring 7 (see 2 ^nd and 3 ^rd cases cited above),

- a long default code (included in mobile phone 1 when purchased) is a series of zeros,

- any change to the long code or the short code can only be made after entering either the long code or the first identification code

Bluetooth followed by the short code,

- the first Bluetooth identification code is saved after the long code has been saved,

- a new Bluetooth identification code can become the first identification code, after entering the long code,

- the identification codes of the SIM card or cards authorized to be used in the mobile phone 1 are saved in the memory 2e of the mobile phone 1,

- the installation of an unauthorized SIM card necessarily results in the non-functioning of the mobile phone 1 (when the mobile phone 1 is powered up, a comparison is made between the code of the SIM card installed and the identification codes of the authorized SIM cards).

We will now describe, with reference to FIG. 2A, a second operating mode, or mode 1 bis, of the mobile telephone 1 according to the invention

According to this second operating mode 1 bis, the key holder 7 is provided with an activation means, such as for example an on / off switch.

7a (see FIG. 1), which the owner of the mobile telephone 1 actuates upon closing so that the key ring 7 transmits towards the transceiver 6a of the alarm module 6 at least one Bluetooth identification code.

Note that this process is more suitable for short-distance transceivers that can provide at least two identification codes memorized by the owner, whereas, even if Bluetooth technology allows such a service, it is preferred that the Bluetooth chip identification already exists (provided by the manufacturer), is unique, and is issued as soon as there is a request by other Bluetooth equipment.

As an alternative, the key chain switch 7 could be replaced by two push buttons respectively connected to two Bluetooth chips, these two chips being each assigned a Bluetooth identification code, one corresponding to the activated mode. alarm module 6, the other in deactivated mode.

Following the reception of said identification code, its decoding by the decoder 6b and its comparison with the identification code recorded in the memory 6d, the microcontroller 6c launches a test program on the condition that the mobile telephone 1 is turned on. voltage. Such a test program is shown in Figure 3B.

This test program includes a first test F, according to which the microcontroller checks whether the alarm module 6 is activated or not.

If the alarm module 6 is not activated, the mobile telephone 1 operates normally. If the alarm module 6 is activated, the microcontroller 6c carries out a test G according to which it checks whether the SIM card 2d has been changed. If the SIM card 2d has not been changed, the microcontroller 6c performs one of the tests B and C mentioned above.

If one of the tests, B or C is successful, the mobile telephone 1 enters a timeout phase during which it is still possible for the owner of the mobile telephone to enter the Bluetooth identification code for deactivation of the module. alarm 6. If the correct code is not entered, the alarm module 6 is activated and a minimized service takes place as described in the first embodiment 2A. If the transmitted code is recognized, the mobile phone enters normal operation and the alarm module 6 is deactivated.

If the SIM card 2d has been changed, the alarm module 6 remains activated with minimized potential use of its services as described in the first embodiment 2A. Thus, as soon as at least one service provided by the mobile telephone 1 is used, the activation information of the alarm module 6 is then transmitted to the transceiver 2b of the mobile telephone 1 which immediately sends a message alarm to the telecommunications network 5 via the base station 4 with which it is in contact at the time of activation of the module 6.

In this message, are advantageously indicated: - the characteristics of the mobile phone 1 as it was originally, namely: the identification code of the previous SIM card, the IMEI number and the identification number of MSISDN subscriber,

- and the characteristics of the newly introduced SIM card. Such a message is of course applicable to all the operating modes which are described in the following description.

We will now describe, with reference to FIG. 2B, a second embodiment of the mobile telephone 1 according to the invention. This second embodiment is strictly identical to the first embodiment (1 or 1 bis) of implementation apart from the fact that the SIM card 2d is fixed in mobile phone 1 and therefore cannot be changed by a thief or unauthorized person. Such a telephone may very well be “multi-SIM cards”, SIM cards other than the 2d SIM card being removable. In this case, the removal of one of the removable SIM cards is potentially an alarm stimulus. The non-mobility of the 2d SIM card can be easily detected by the thief. Such a characteristic can thus quickly dissuade the thief from using the mobile phone 1. The owner may then permanently lose his mobile phone 1. The thief will consider the latter as useless or dangerous and will be liable to throw it away, (which is a lesser harm, because the mobile phone can be found) or destroy it.

In the hope that the mobile phone 1 is kept by the thief or simply thrown away, the owner of the mobile phone 1 has the possibility:

- launch a blocking command for the mobile phone 1 which will then no longer be able to function, - seek to locate the thief by the location procedure described above.

As can be seen in FIG. 2B, a stimulus detector 10 is connected to the dialogue means 2 and to the alarm module 6 by means of a switch 11. The detector 10 is also connected to the battery 8 by via a switch 12.

This switch 12 is in the closed position when automatically (mode 1) or voluntarily (mode 1 bis) the alarm module 6 is activated. It is in the open position when the module 6 is deactivated. The detector 10 can only operate when it is supplied and the switch 12 controls this supply. The detector 10 allows the mobile phone 1 to be sensitive to other stimuli than those mentioned previously in mode 1 or 1a (communication, battery recharge, change of SIM, etc.).

As is apparent from French patent application No. 01 12292 in the name of the applicant, such a detector 10 is capable of being sensitive to: a movement which can be detected by means, for example, of a small pendulum mechanism such as for example of the mechanism type of automatic watches, but much simpler,

- light which can be detected by means of, for example, a small photosensitive cell,

a noise which can be detected by means for example of a microphone, and according to the invention:

a charging of the battery 8 which can be detected by means, for example, of a small button which would be pressed when positioning the mobile phone 1 in the battery charger,

- a standby or an operating state (WAP, conversation) of the mobile telephone 1 which can be detected by changes in the intensity of the current or of the voltage in the circuit. The switch 11 has two positions:

- An open position (default position) as shown in FIG. 2B and which indicates that the detector 10 has not detected (with 12 closed: condition "sine qua non" of its operation) no stimulus (noise, light, movement ...) normally controlled by him. When switch 12 is open, switch 11 is open.

- A closed position, controlled by the stimulus detector 10, following the detection, by the latter, of a noise, light or movement. Such a detection can only be done if the switch 12 is closed so that the stimulus detector 10 is powered. When this is the case, the detection information is sent towards the alarm module 6 which launches the security procedure as described in FIG. 3B.

Two situations are then to be considered in the case where the switch 11 is in the closed position (which implies the switch 12 closed and the reception of a stimulus: noise, light, movement): - if the mobile telephone 1 is not energized, a circuit, shown in FIG. 2B by a double arrow, makes it possible to supply all that is necessary for putting the mobile telephone 1 to sleep, without supplying the part of the latter which includes the microphone, the earpiece, the screen, the vibrator and the keyboard (not shown). In this particular standby state maintained for short periods, according to a certain periodicity, thanks to a timer (not shown) integrated in the mobile phone 1, the mobile phone 1 can report to each base station 4 that it encounters on its course, which has the effect of supplying information with the location procedure described above,

- if the mobile telephone 1 is in normal standby state or in operation, the base station 4 locates the mobile telephone 1, which has the effect of launching the location procedure described above during a period limited by the timer.

In operating mode 1 bis, the alarm state could also be managed by a security program, the triggering of which was ensured by entering a code on the keypad of mobile phone 1, following the launch of an option from the menu managed by the mobile phone.

In the second embodiment of FIG. 2B and in the event that the alarm state is controlled by such a program, it would be desirable for this program to be launched on request by the owner, validation and taking into account of the mode activated or deactivated of the alarm module 6 being linked to the authentication of the owner by the introduction of his secret code.

The introduction of a correct secret code naturally suppresses the sending of alarm messages by the transceiver 2b and the reopening of the switch 12. However, in order to avoid any sending of alarm when the legitimate owner wants to deactivate the alarm module 6, there is always a delay of a few minutes between the detection of a stimulus and the signaling (sending of alarm messages - location) that such a stimulus has been detected. This offset of a few minutes, valid in all the operating modes of the mobile phone 1, of course does not intervene in the data protection step as described in relation to the mobile phone

1 of Figure 2A. Note that the detector 10 can, if desired, operate when the switch 12 is closed and the mobile phone 1 is turned off.

We will now describe, with reference to FIG. 2C, a third embodiment of the mobile telephone 1 according to the invention.

The third embodiment differs from the previous ones in that it comprises, in addition to the SIM card 2d, a second SIM card 2f which, unlike the SIM card 2d, is irremovable.

More specifically, the SIM card 2f is welded to the electronic card (not shown) of the mobile phone 1, and possibly embedded in a non-removable cap (any attempt to remove such a cap resulting in a malfunction of the mobile phone 1).

This SIM card is linked to the identification or subscriber number (different from that of the SIM card 2d) provided by the manufacturer of the mobile phone 1.

The only function of the SIM card 2f is to allow the execution of the "detection or theft" program of the mobile phone 1 by the alarm module 6.

The SIM card 2f thus enables the network 5 to locate the mobile telephone 1 and to follow the security program accepted / defined by the owner: sending of alarm messages, monitoring and recording of the location according to a certain periodicity.

As can be seen in FIG. 2C, the SIM card 2d is connected to the battery 8 by a switch 13 which is capable of passing alternately from a standby position (switch 13 in position F1) of the mobile telephone 1 operating with the SIM card 2d at a position in the off state of the latter. If the switch 13 is in position F1, the mobile telephone 1 operating with the SIM card 2d is on standby, but the current no longer flows in the detector 10 '. When the switch 13 is in position F2, as shown in FIG. 2C, the current can flow in the detector 10 ′ and the mobile telephone 1 operating with the SIM card 2d is switched off. According to what third embodiment, the alarm module 6 can only be activated when the part of the mobile telephone 1 which operates with the SIM card 2d is stopped (switch 13 in position F2).

The SIM card 2f is, in turn, connected to the central unit 2a and controlled by two switches, 14 and 15.

The mobile telephone 1 according to the third embodiment has the functionalities of a normal mobile telephone having, in addition to the first embodiment above operating according to mode 1 or 1 bis, software and hardware means adapted so that the telephone mobile 1 can alternatively operate with the SIM card 2d or the SIM card 2f by means of common basic elements.

These basic elements are in particular the antenna 2c, the transceiver 2b, the memory 2e and the battery 8.

As in the case of the second embodiment, the third embodiment includes a stimulus detector 10 '. In the example shown, the detector 10 'is connected:

- to the battery 8 via the switch 13 (when the switch 13 is in position F2, the current flows in the detector 10 ': the detector 10' then operates while the part of the mobile telephone 1 operating with the SIM 2d is off),

- to the SIM card 2f via a switch 14,

- and to the alarm module 6 via a switch 15.

The switch 15 has two positions which are controlled according to the operating mode of the alarm module 6 (automatic procedure (mode 1) or controlled (mode 1bis)). These positions are:

- a closed position, in which the alarm module 6 is activated. If in this position, the part of the mobile telephone 1 using the SIM card 2d ceases to function (switch 13 in position F2), the current flows in the circuit materialized by the double arrow and the stimulus detector 10 'is supplied. The alarm module 6 and the detector 10 'operate in unison. The passage of the switch 15, from this closed position to the open position, that the switch 13, either in position F1 or F2, is always possible thanks to the key ring 7, via the short-distance transceiver 6a,

- An open position as shown in Figure 2C, in which the alarm module 6 is deactivated. The transition from this position to the closed position is only possible when the part of the mobile telephone 1 using the SIM card 2d is in standby state (powered up or switch 13 in position F1).

As described with reference to FIG. 2B, such a detector 10 ′ is able to be sensitive to movement, light, noise, charging of the battery 8, but not to a standby or a mobile phone operating status (WAP, conversation) 1.

The stimulus detector is, in this example, also capable of detecting a change of SIM card 2d. To this end, the microcontroller 6c performs the comparison between the subscriber number assigned to the SIM card inserted in place of the SIM card 2d and the subscriber number assigned to the mobile phone 1 which is saved in a part of the memory. 6d reserved for the 10 'stimulus detector. Such a comparison can alternatively be carried out automatically when the mobile phone 1 is started.

This storage possibility allows the transceiver 2b, when the part of the mobile phone 1 using the SIM card 2f is activated, to send to the server 3 an SMS type message which contains the subscriber number assigned to the card SIM 2d. If such a number is that of the owner, the account can be blocked, which forces the thief to change the SIM card, and therefore the number, and thereby avoid unnecessary expenses for the legitimate owner. Once the change of SIM card has been carried out, the new owner may make himself known to the operator by complaining about the malfunction of mobile phone 1 (for example blocking of mobile phone 1 if the thief has introduced a new SIM card to instead of the SIM card 2d). But perhaps the owner will also wish to use the possibility of locating his thief by the location procedure described above. The stimulus detector 10 ′, which controls the closing (Switch 14) of the supply circuit of the part of the mobile phone 1 using the SIM card 2f, only works when the part of the mobile phone 1 operating with the SIM card 2d n is not energized. The switch 14 has two positions:

- An open position as shown in Figure 2C, which corresponds to the non-detection by the detector 10 'of the least stimulus controlled by it. This open position is the default position,

- a closed position which corresponds to the detection of a stimulus (other than the change of SIM card 2d) by the stimulus detector 10 ', provided that the switch 13 is in position F2, so that the detector stimulus 10 'is supplied. When this is the case, only the part of the mobile telephone 1 using the SIM card 2f is powered (if switch 15 is closed). The detection information, if the switch 15 is closed, is sent towards the alarm module 6 which launches the security procedure as described in FIG. 3A or 3B, to which are added the tests not shown corresponding to the stimuli detected by the 10 'detector.

In certain cases, it could be useful that, when the legitimate owner wishes to deactivate the alarm module 6, the stimulus detector 10 ′ does not operate immediately by closing the switch 14 after detection of a stimulus. It suffices for this that a timer (not shown) triggers the delayed closing of the switch 14 after detection of the stimulus. The few minutes of delay thus offered, before putting the part of the mobile phone 1 using the SIM card 2f to standby and launching the security procedure, should allow the owner to switch on the mobile phone 1, and therefore put it to standby , and thus move the switch 13 to position F1, which has the effect of stopping the alarm process.

A fourth embodiment of the mobile telephone 1 according to the invention will now be described with reference to FIG. 2D. As in the previous example, the fourth embodiment comprises, in addition to the SIM card 2d, a second SIM card 2g similar in all respects to the SIM card 2f.

As can be seen in FIG. 2D, the SIM card 2d is connected directly to the battery 8. The SIM card 2g is in turn connected directly to the central unit 2a.

The fourth embodiment also includes a 10 "stimulus detector which is connected:

- to the battery 8 via the switch 16, - to the central unit 2a and to the SIM card 2g via a switch 17.

Such a circuit configuration allows the stimulus detector 10 "to operate, whether the mobile telephone 1 is stopped or in standby state. Thus, at any time, the mobile telephone 1 has the possibility of signaling an unwanted use , whether it is a simple manipulation without putting in the standby state or the passage of any communication.

Said configuration consumes more energy than that of the third embodiment.

It further assumes the possibility of alternating operation of the part of the mobile telephone 1 using the SIM card 2g and of the part of the mobile telephone 1 using the SIM card 2d, when the two parts are in standby state. On this technical possibility of alternation depends the number of basic elements allocated to the part of the mobile phone 1 using the SIM card 2g and completely independent of the part of the mobile phone 1 using the SIM card 2d. In the example of FIG. 2D, the detector 10 "is able to be sensitive to movement, light, noise, charging of the battery 8, placing in standby or operating state ( WAP, conversation) from the mobile phone 1.

The stimulus detector 10 "is, in this example, also capable of detecting a change of SIM card 2d in the same way as the detector 10 'of the third embodiment. The switch 16 has two positions:

- a closed position, in which the alarm module 6 is activated and in which the stimulus detector 10 "is supplied. The slightest stimulus closes the supply circuit of the SIM card 2g thanks to the switch 17 which is then automatically put in position P1. Three cases then arise:

• the part of mobile phone 1 using the SIM card 2d is switched off. The security program (sending of alarm messages, localization, etc.) then starts as soon as the part of the mobile telephone 1 using the SIM card 2g goes into standby, which corresponds to position P1 of switch 17.

• The respective parts of the mobile phone 1 using the SIM card 2d and the SIM card 2g are both in standby state. Putting the SIM card 2g into standby corresponds to position P1 of switch 17, therefore to the detection of a flight (stimulus detected). It is therefore fundamental that the part of the mobile phone 1 using the SIM card 2g is located at least once with the base station 4 and that the part of the mobile phone 1 using the SIM card 2d continues to function well. Since the supply circuit of the SIM card 2g remains closed after detection of stimuli for a certain period, thanks to a timer (not shown), it is conceivable that an information processing program diverts certain elements of information collected during communication with the 2d SIM card, such as the caller's number, names of people or places and / or environmental noises (if it is possible to recognize and record them), these elements information is then sent by the SIM card 2g when communication with the SIM card 2d is stopped, when this is made possible. “The part of mobile phone 1 using the SIM card 2g is in standby state (switch 17 in position P1, theft detected) and the part of the mobile telephone 1 using the SIM card 2d in operation (communication in progress carried out by the thief ...). The timer counting down the time allocated to the standby period for the part of the mobile phone 1 using the SIM card 2g is stopped as soon as the part of the mobile phone

1 using the SIM card 2d starts to function, the switch 17 then passing to position P2 (the current only flows in the stimulus detector 10 "). As soon as the part of the mobile phone 1 using the SIM card 2d stops working 0 , the timer is restarted, and the switch 17 returns to position P1, for the remaining time.

- An open position as shown in Figure 2D, in which the alarm module 6 is deactivated.

The switch 17 has two positions: 5 - a position P1 as shown in FIG. 2D and in which the stimulus detector 10 ", activated (switch 16 in the closed position), has detected any stimulus. For reasons of comfort , the launch of the security program (sending of alarm messages, location, etc.) may be slightly delayed, in order to allow the legitimate owner to switch the alarm module o to the deactivated state.

- And a position P2 in which the current flows in the detector 10 "but not in the SIM card 2g. This is the default position. In all cases, the position P1 of the switch 17 is resumed after a certain duration, and only the detection of a new stimulus will be able to trigger the safety program 5,

It goes without saying that the embodiments which have been described above have been given for purely indicative and in no way limitative, and that many modifications can be easily made by those skilled in the art without departing from the part of the invention.

Therefore : - It would be possible to reverse the logic of the operating principle of the mobile phone 1 which consists of sending alarm messages only when the stimulus detector and / or the key ring 7 have detected an anomaly. Indeed, the mobile telephone 1 could send messages (SMS for example) of the "RAS tout va bien" type at regular intervals (a message per week or a message every three days for example) to the server 3. On the other hand, when the telephone mobile 1 is stolen and the SIM card 2d removed, the server 3 no longer receiving messages will deduce therefrom an abnormal operation of the mobile phone 1 and will alert the owner. - It would also be possible, even preferable, for the alarm module 6, both from the software point of view and from the hardware point of view, to be directly integrated by manufacturers from the manufacture of the mobile phone 1, so as to avoid '' added a second irremovable SIM card. This makes it possible to get rid of the case where the thief or the unauthorized person throws away the SIM card after having stolen the phone and uses another which does not have the anti-theft application. To make the link with the subscriber who is the victim of the theft, the international mobile phone number (IMEI) must be transmitted in the alarm message in order to identify this phone as belonging to it. This of course requires managing somewhere a correspondence table between the IMEl and the subscriber identification number MSISDN.

One can also imagine that there is, in each of the embodiments previously described, a counter which makes it possible to launch the safety program only from the moment when a certain number, to be defined, of different or identical stimuli have been counted, this in order to avoid the unwanted launch of such a program. Indeed it can happen that the owner himself puts himself in a situation where the mobile phone 1 could wrongly take him for a thief.

Finally, whatever the type of process used to make the telephone with anti-theft device according to the invention, it is of course possible to imagine that such a telephone could serve as a decoy and thus be left by the owner, at home or in his vehicle or his office, in the hope that in the event of theft, the thief goes with him. If it is indeed very difficult to track stolen jewelry or banknotes, it is on the other hand reasonably easy to track the thief who would have taken such a device.

• Any mobile phone with anti-theft device can be a reasoned combination of the four embodiments which have just been described above, particularly if we consider the possibility of integrating, for any of the last three embodiments shown respectively in Figures 2B, 2C and 2D, the two alarming processes implemented in the first embodiments (1 and 1a) shown in Figure 2A.

• For any one of these four embodiments, when the alarm module 6 is not activated, one can imagine that the non-detection of a particular stimulus for a certain period of time (1/2 h, 1 hour or other), allows you to close the phone's power circuit. The latter being switched off, it will no longer use its battery 8. If it is admitted that a mobile phone may not be used during meal and sleep hours, the non-triggering of the "movement" stimulus detector could allow to double the autonomy of the mobile phone 1. The appearance of such a stimulus would naturally put the mobile phone 1 to sleep, if the latter has been stopped due to the absence of detection of this stimulus.

• Such a mobile phone 1, when its alarm module 6 is activated, can serve as a remote information base: the stimulus can be the dangerous rise of the waters of a river or lake, the sound of shots rifle in an area where hunting is prohibited, the start of a fire or too high a heat level in an isolated place .... The calibration of stimuli of a given type makes it possible to establish a correspondence with the different levels emergency call possible: "suspect heat level ... Zone to be monitored" "more than 100 °, urgent intervention requested" "priority intervention, risk of fire" ....

Claims

1. Mobile telecommunication equipment (1) comprising:

- dialogue means (2) intended to communicate with an alarm management server (3) via a mobile telecommunications network (5),

- said telecommunication equipment being characterized in that the alarm module (6) comprises an alarm module (6) connected to the dialogue means (2) so that when the alarm module (6) is activated , the dialogue means (2) send at least one alarm message to the alarm management server,

- short distance transceiver means (6a) able at least to receive, from a short distance transceiver module (7) external to the mobile telecommunication equipment, at least one code for identification of the owner of mobile telecommunications equipment,

- storage means (6d) capable of containing at least one identification code of said owner of the telecommunications equipment,

- And comparison means (6c) able to receive from said transmission-reception means (6a) the identification code received and to compare the latter with at least one identification code of the owner of the equipment of mobile telecommunications which is contained in said storage means, so that when the identification code received is not equal to the stored identification code, the alarm module (6) is activated.

2. Equipment according to claim 1, characterized in that the short-distance transmission-reception means (6a) of the alarm module are, furthermore, capable of transmitting, in the direction of the external short-distance transmission-reception module (7), a request for the supply of at least one identification code of the owner of the mobile telecommunications equipment.

3. Equipment according to claim 1 or 2, characterized in that the short-distance transmission-reception means (6a) of the alarm module and the external short distance transceiver module (7) are both of Bluetooth type.

4. Equipment according to claim 1 or 2, characterized in that the short-distance transmission-reception means (6a) of the alarm module and the external short-distance transmission-reception module (7) are both of the type 802.11b.

5. Equipment according to claim 1 or 2, characterized in that the short-distance transmission-reception means (6a) of the alarm module and the external short-distance transmission-reception module (7) are both of the type 0 HomeRF.

6. Equipment according to claim 1 or 2, characterized in that the short-distance transmission-reception means (6a) of the alarm module and the external short-distance transmission-reception module (7) are both suitable for issue one or more identification codes which are supplied by the manufacturer of said equipment or which are entered into memory by the owner of said equipment.

7. Equipment according to any one of claims 3 to 6, characterized in that the short-distance transmission-reception means (6a) of the alarm module are capable of receiving one or more identification codes from 0 coming from said external short-distance transmission module (7), the latter being chosen from the group comprising modules of the Bluetooth, 802.11b, HomeRF type and of the type capable of transmitting one or more identification codes which are supplied by the manufacturer of that equipment or that are entered into memory by the owner of said equipment. 5

8. Equipment according to any one of claims 1 to 7, characterized in that the identification code transmitted by said short-distance transmission-reception means (6a) remotely authenticates the legitimate owner of said mobile telecommunications equipment.

9. Equipment according to any one of claims 1 to 8, o characterized in that said equipment is a mobile phone (1).

10. Equipment according to claim 9, characterized in that the mobile telephone (1) comprises an electronic identification module (2d) which is removable.

11. Equipment according to claim 9, characterized in that the mobile telephone (1) comprises an electronic identification module (2d) which is fixed.

12. Equipment according to claim 9, characterized in that the mobile telephone (1) comprises two electronic identification modules (2d, 2f or 2g), one (2d) being removable, the other (2f or 2g) being fixed.

13. Equipment according to claim 11 or 12, characterized in that the mobile telephone (1) further comprises a stimulus detector (10; 10 ';

10 ") which is connected on the one hand to electrical supply means (8) of said equipment, and, on the other hand, to the dialogue means (2) and to the alarm module

(6).

14. Equipment according to claims 12 and 13, characterized in that the stimulus detector (10 ') is capable of being triggered provided that the part of the mobile telephone (1) using the fixed identification module (2f) is in operation and that the part of the mobile telephone (1) using the removable identification module (2d) ceases to be in operation.

15. Equipment according to claims 12 and 13, characterized in that the stimulus detector (10 ") is capable of being triggered at any time, whatever the operating mode of the parts of the mobile telephone (1) respectively using the module d fixed identification (2f or 2g) and / or the removable identification module (2d).

16. Equipment according to any one of claims 1 to 15, characterized in that when the alarm module 6 is not activated, the absence, after a certain time, of reception of certain stimuli, makes it possible to obtain a significant energy saving automatically by switching off said equipment.

17. Equipment according to any one of claims 1 to 15, characterized in that when said alarm module 6 is activated, it receives information corresponding to different calibrated stimuli.

18. Short distance transceiver module intended to send at least one identification code to short distance transceiver means (2a) contained in mobile telecommunication equipment (1) according to any one of claims 1 to 17, characterized in that said module is integrated in an element (7) intended to be fixed or mobile.

19. Module according to claim 18, characterized in that said element (7) is chosen from a key ring, a rigid protection means of said mobile telecommunication equipment, a portable terminal of PDA type, a portable music player, a card reader , electronic equipment comprising a transceiver compatible with a transceiver (2b) belonging to said equipment (1).

20. Module according to claim 18 or 19, characterized in that it is of the Bluetooth or 802.11 b or HomeRF type.

21. Module according to any one of claims 18 to 20, characterized in that it comprises an activation means (7a) capable of being controlled by the owner of the mobile telecommunication equipment.

22. A method of detecting theft of mobile telecommunication equipment according to any one of claims 1 to 17, the method being characterized in that it comprises the following steps: a) the short-distance transmission-reception means (6a) of the alarm module (6) receive or not at least one identification code of the owner of the mobile telecommunication equipment (1) coming from an external short-distance transceiver module (7) to the mobile telecommunication equipment, b) if the short-distance transmission-reception means (6a) receive said identification code, the comparison means (6c) of the alarm module compare the identification code received with at least one identification code of the owner of the mobile telecommunication equipment which is contained in the storage means (6c) of the alarm module (6), c) if the short-distance transmission-reception means (6a ) do not receive said code d identification or if said code received by the equipment of mobile telecommunication is not equal to said at least one stored identification code, the dialogue means (2) of the mobile telecommunication equipment (1) send at least one alarm message to the alarm management server ( 3) upon use of at least one service provided by the mobile telecommunications equipment.

23. The method of claim 22, according to which prior to step a), the short-distance transmission-reception means (6a) of said alarm module transmit towards said external short-distance transmission-reception module (7 ) a request for the supply of at least one identification code of the owner of the mobile telecommunication equipment, the emission of such a request being carried out at fixed time intervals or else during use, by a holder of said equipment, of at least one functionality of the latter.

24. The method of claim 22 or 23, according to which in step c), the service operates minimally. 5

25. Method according to any one of claims 22 to 24, according to which the functionality of the mobile telecommunication equipment (1) is chosen from the group comprising putting the equipment (1) into standby state, recharging means of electrical supply (8) of the equipment (1), the emission / reception of calls by the equipment (1), the change of module o electronic identification (2d) of the owner of the equipment.

26. The method of claim 24, wherein the service provided by the telecommunications equipment (1) is chosen from the group comprising use (communications, sending short messages of SM type, WAP, Internet, data transfers. .) a prepaid card, the use of a flat rate, 5 access to a directory or an agenda, consultation of electronic mail, voice mail, files, data transfer, the use of videos or games.