JP2002185587A - Digital portable telephone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To widen the utilization factor of a digital portable telephone by using two or more kinds of subscriber recognition module cards properly. SOLUTION: A digital portable telephone of a type having a subscriber recognition module is equipped with at least two subscriber recognition modules, where one of them is mounted on the outer side of the telephone, and a switching means which a user is capable of getting access to and enables the user to select either of the subscriber recognition modules. The user is capable of communicating with the other through a desired telephone circuit by operating the switching means. The other characteristics of this invention is that a copper lead wire connecting the two external and internal module cards together is formed of soft material having high flexural fatigue resistance. The wiring board of the copper lead wire is formed into a very thin plate that is enough in durability. The front and back of the wiring are coated with polyester synthetic resin. The wiring board is very thin and requires no modification of a telephone main body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a digital mobile phone, and more particularly, to a digital mobile phone capable of selecting one of a plurality of subscriber recognition modules by operating a switch. It is.

[0002]

2. Description of the Related Art Digital mobile telephones usually include a board in which a chip called a "module card for recognizing a network subscriber" (hereinafter, referred to as a "module card") is mounted at a fixed insertion port in the body of the telephone. Insert and use. By installing this module card on a device in advance by a company that provides the telephone line network, a user can connect the module card to the line network of a contracting company.
Usually, the telephone network accessible from each mobile phone is
Although the phone is limited to those of a pre-designated company, in practice, by replacing a module card board that is valid for only one company with another module card board, It is also possible to access the telephone network of another company.

[0003]

However, the digital mobile phones currently in circulation are not incapable of replacing this module card, but the replacement work is not always easy. For example, in the case of Nokia model No. 2110, in order to replace the module card, first remove the battery, open the outer cover, operate the stopper, release the lock state, and turn the rotary support Is pressed into the release position and removed to remove the module card from the holder, but this removal requires considerable manipulation.

[0004] In order to change the telephone line network from the network provider currently in use to another network provider due to such an operation, the telephone must be turned off first, and the equipment must be once completely turned off. After stopping and replacing the module card, it is necessary to start up again.

[0005] At present, there is no compatibility between the digital telephone line networks so that the user can select and use one of them as appropriate, and furthermore, there is a great difference in the usage fee between the respective network provider companies. If a different telephone network can be selected and used each time, a) select a telephone network that is within the available range of a specific network or that it is more convenient to use another type of network. It is a great benefit for the end user in that, for example, the user can use the network of the desired fee while the usage fee varies greatly.

Although it is possible to do this with a digital mobile phone currently in circulation, it is necessary to replace the module card by performing the above-mentioned operation in order to switch the network from one company to another company. However, at present, the user is annoyed and usually does not try to perform such an operation.

[0007] Telephone network provider companies are proactive in taking measures to keep up with competition from other companies, and instead, they have to take advantage of users and have an advantageous fee structure while maintaining the scale of the network. Is not necessarily large, so that the user may not be interested in the case. For the user, not only the low price but also the possibility of wide area access is an important condition, and the user will select the network based on the balance between the two, The inability to make this choice has disadvantageous consequences for the telephone network provider.

The present invention provides a key to solving such a problem, and is particularly valuable for network providers who do not have a wide area network, while users still have a mechanical advantage. This promises a great advantage that a selection can be made more suited to the needs without suffering from the complicated operation.

[0009]

According to a first aspect of the present invention, at least two types of module cards are used, and a user selects one of these two types of cards by operating a switch. A mobile phone of the type having a subscriber recognition module is provided.

According to the second aspect, at least two types of module cards are placed in a holder, and the holder is mounted on the outside of a normal digital cellular phone, and a user selects a desired module card by operating a switch. Is used. The switch of the holder separately attached to the outside of the telephone and the existing holder inside are connected by a conductor.

According to the third aspect, a module card of a type that can be used by the user by replacing it with an existing internal module card holder is used. The replaceable module card is wired so as to be electronically connected to the telephone. The replaceable module card in the telephone is further connected by wiring to an external module card holder mounted outside the machine. The external holder can be loaded with a minimum of two types of module cards, which are connected to the internal replaceable module card in a wiring manner, and thereby are electronically connected to the telephone body. The selection of which module card to use is made by operating a switch provided on the external module card.

[0012] According to the fourth aspect, a module card of a type that can be used by the user by replacing it with the existing internal module card holder is installed, and this is wired and connected to the holder mounted outside the telephone body. In this method, at least two types of external module cards are connected. The selection of at least two types of module cards is transmitted to the internal module card as it is by operating the switch, and further connected directly to the internal wiring through the wiring.

One of the problems in the above configuration is how to make an electrical connection from the internal components of the telephone to the subscriber recognition module mounted outside the telephone.

As a result of a detailed investigation of various types of digital mobile phones currently on the market, in each case, a very thin electric wire having a thickness of less than 0.3 mm was inserted under the cover in some cases. It has been found that it is possible to reach the externally mounted subscriber recognition module card holder after crawling the passages and corners of.

The externally mounted subscriber recognition module card holder is preferably fixed to the outside of the telephone body by an appropriate method. Preferably, the switch is a mechanical switch.

The externally mounted module card holder is provided with an electronically accessible memory and software programmed in the memory in order to provide additional functions as far as the functions of the digital telephone are concerned. Is preferably provided. By the logic of this memory and program software,
With regard to the connection of the telephone, it is possible to select the best telephone line network from the viewpoint of both line connection conditions and economy.

By adding such a function, the telephone user needs to determine which telephone line network is advantageous for communication with a specific area and which is the best in terms of price. It can be operated by an additional function which is an electronic switch by computer logic.

Further, a voice recording function can be provided by further adding a memory. Additional functions combined with the functions of the digital telephone can be incorporated in or connected to the external module.

Further, it is preferable that the wiring for taking out the outside is a collective flexible circuit board including a board, conductive tracks provided laterally on the board for each circuit, and a covering layer thereon. The substrate is preferably made of polyester synthetic resin, and the conductive track is preferably made of copper having a gold-plated contact surface.

What will now be described as preferred is a digital mobile telephone of the type using a subscriber identification module. The improvement in the telephone is that the two modules can be used with one and the same telephone by providing a holder attached to the outside of the telephone to accommodate at least two subscriber recognition modules. The point is that it can be easily selected by a switch.

Further, it is preferable to use a flexible circuit board which can be used to connect electrical contacts which are usually used for reading from a subscriber identification module inside the telephone. This flexible circuit board can be drawn out of the telephone through the gaps that naturally occur between the protective covers of the telephone, which are required during the manufacturing process. As a result, the externally mounted subscriber recognition module can be connected to any telephone without violating the manufacturer's warranty.

In still another aspect, the present invention provides a digital mobile telephone of the type requiring a subscriber identification module to establish authorization and / or authentication of a telephone network, The mobile telephone has means arranged to accommodate at least two memory modules, at least one of which is a subscriber identification module for permitting and / or authenticating use of the telephone network. Each memory is maintained so that it is always in electrical connection with other functional components of the telephone.
The mobile phone is further operable at any time by the user, and the user is additionally provided with an electrically accessible memory and memory to provide additional functions as far as the digital mobile phone is concerned. A switch means adapted to select one, some or all of the modules or parts of the modules, including software programmed in the memory.

[0023] The electrically accessible memory and the program software are preferably provided at least in part by modules that can be accessed by magnetic connection and communication.

[0024] Preferably, at least one of the modules has a module so as to switch to a connection to further functional elements of the mobile telephone.

In yet another aspect, the present invention provides a digital mobile phone having a subscriber identification module, wherein the mobile phone includes at least two subscriber identification memory modules. A device for holding each module in electrical connection with the functional component elements of the mobile phone, and at least one of the options, accessible by or to the user, provided Switch means adapted to allow the user to select one, some or all of the memory modules installed, means for holding a subscriber recognition module or further user insertion means, Through the connection of the telephone, the logic to search for the telephone network that is the easiest to connect to and the one that is the most cost-effective is added to the logic for other functions. And a access means equipped with.

In yet another aspect, the present invention provides a digital mobile telephone having a subscriber identification module, wherein the mobile telephone includes at least two subscriber identification modules, A device for maintaining the module in electrical connection with the functional component elements of the mobile phone, and a device accessible to the user, wherein the user is added to the functions of the digital mobile phone. Switch means adapted to be selected by a user insertable device with additional memory having additional functions incorporated or connected to an external module as described above.

[0027]

DETAILED DESCRIPTION OF THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIGS. 1, 2, 3, and 4 show telephones obtained by adding a function of selecting a module card to a digital portable telephone (number 1 in the figure) which is currently widely available. Reference numeral 2 in the figure indicates the front of the telephone, where control buttons are provided. Reference number 3 is a microphone, 4 is a speaker,
Reference numeral 5 denotes a character display screen.

On the back side of the telephone, there is provided means for holding a subscriber recognition module for recognizing a subscriber to a digital communication service provider.

As best shown in FIG. 2, in a telephone with a battery removed, the flexible wiring 6 is first formed flat and then provided with a polyester substrate and conductors along the tracks. It consists of a track deposited in an etched channel in a polyester substrate and a coating of a polyester plastic material thereon.

By providing the wiring board with such flexibility (flexibility), the board can be bent without difficulty, and the space between the removable module card 7 and the external module card holder switch mounted outside the telephone can be obtained. It can play the role of a line that connects electronically. The wiring board is firmly fixed to the fuselage along the internal structure of the telephone. As shown in the figure, the wiring board is arranged in a stepwise manner at positions 8, 9, 10, and 11, and the board is extremely thin. Due to such considerations, any part does not hinder the structure, and therefore there is no need to modify the structure of the telephone body at all. The wiring board is bent right and left on a plane at a position 12 in the figure.

The wiring finally reaches the external switch 13,
Connected to this. The switch 13 has means for holding two subscriber recognition modules. When this switch 13 is switched, for example, from (1) to (2), the effective active electrical connection connected by the removal card 7 is effectively switched. By mounting the telephone 1 on such an electrically conductive track, the user can select one of the two subscriber recognition modules with the simplest operation of switching a switch. it can. Such an action does not necessarily have to be performed by switching off the telephone, so that the user has to take part in the services provided by one of the installed subscriber identification cards or by another provider. , It is possible to quickly check whether or not something is just right.

The thickness of the electronic wiring board is from 1/4000 inch to 1/8000 inch, with an average of about 6000 inches.
Since it is only a fraction of an inch, there is no possibility of obstructing the lid or other opening / closing functions of the telephone body or connecting the battery.

Next, other parts of the telephone and other wiring possibilities will be described. The telephone may have any additional and beneficial features according to the present invention, any type of digital cellular telephone currently on the market that uses a telephone network subscriber identification module. Can be appropriately changed.

For example, consider the embodiment shown in FIGS. In this example, telephone 14 is of the type having a separate compartment for a subscriber identification module card that can be opened only after the battery has been removed.

Accordingly, the small room indicated by the reference numeral 15 can be accessed by opening the slide cover 16 shown in the open position in FIGS. 5 and 7, for example.

The subscriber identification module is identified by reference numeral 17
It is designed to be held by a holder indicated by. This holder 17 itself is pivoted at reference numeral 18.

As is evident from FIG. 7, according to the present embodiment, the removal card with reference numeral 18 is inserted into the subscriber identification module holder 17 so that the electrical contacts with reference numeral 19 are switched off. When the holder is closed, it will electrically connect to the electrical contacts indicated by reference numeral 20 on the telephone.

The track, approximately 1/6000 inch thick and consisting of two layers of polyester plastic material, is bent with care to rest on the back of the holder 17 and designated by reference numeral 21. Pulled out of the cell, across the edge shown, reference number 2
2 is connected to the switch.

Also in this embodiment, the electrical connection taken out of the subscriber identification module card of the telephone body is connected to a separate, easily accessible switch device indicated by reference numeral 22.

Also in this embodiment, the truck is affixed to the outer surface of the telephone body at a position where it is protected.

Referring to FIG. 8, a third embodiment which is the latest digital telephone will be described. In this example,
Battery removed, shown. As is evident from the figure, there is provided an electrical take-out card indicated by reference number 23 which is held in place by a slidable catch indicated by reference number 24. In this embodiment, the electrical connection extends through an electrical path indicated by reference numeral 24 and is eventually connected through a surface of the telephone body to a switch indicated by reference numeral 25. The switch 25 has a display window indicated by reference numeral 26 for displaying which of the two subscriber identification cards is selected. The switch 25 has a reference number 2
There is an end switch section indicated by reference numeral 7, whereby a switching operation is performed if necessary.

Also in this embodiment, the truck 24 is attached to the surface of the telephone. Due to the thinness of the track 24 and the material structure of the substrate and the cover made of a polyester plastic material, the corners of the track can be closely crawled with a very small radius without breaking. The truck is affixed on the surface of the phone case to ensure long-term stability and good mechanical support. The substrate is coated with polyester on both sides of the substrate and the front side of the substrate to further ensure durability.

FIG. 9 shows a wiring state of a conductor track extending between the removal card 28 and the external switch 29.

The card 28 has a conductive surface indicated by reference numeral 30.
Are held in electrical connection with the connector indicated by, and the tracks of the conductive layer then reach the switch means 29, for example, via a path as indicated by reference numeral 31. At the switch means 29, the truck itself is bent in a circuitous manner, so that one subscriber identification module, denoted by reference numeral 32, and the other module, denoted by reference numeral 33, are each provided with opposing electrical components. Can be electrically connected to one electric truck.

FIG. 10 shows that the track 34 is
Yet another embodiment is shown, from five to two subscriber recognition modules 37,38. Module 37,
38 is adapted to be electrically connected to an active active connection.

FIG. 11 shows still another embodiment, in which the track 39 is shown in close contact with the outline 40 of the telephone body shown by cross-hatching. Also in this embodiment, the battery indicated by reference numeral 41 is shown as leaving a gap 42 to allow the truck 39 to pass.

Also in this case, the thickness of the track is 1/6000 inch. The housing, in the meantime, will accept the thicker ones without any obstruction when reloading or placing the battery in place.

Reference numeral 43 in FIG.
44 and 45 are two subscriber recognition module cards, 4
6 indicates an internal removable module card.

FIGS. 12 and 13 differ from the conventional ones in that they are embodiments of a "flip phone" type digital telephone. In the case of the telephone according to the present embodiment, a keypad appears when opened, and is provided with a retractable cover represented by reference numeral 47 which provides a microphone position.

In the case of this embodiment, the switch means 48 is mounted on the outer surface of the openable cover 47. The flexible track 49 is adhered to the surface of the openable cover 47.
The trucks in this area need to withstand the fatigue caused by frequent bending as the cover opens and closes, and because there are no restrictions such as passing through gaps, they are thicker than trucks used elsewhere. I do. In both figures, the connection of the track to the internal subscriber identification module card originally mounted on the telephone is not shown.

In the embodiment shown in FIG. 12, the telephone network subscriber identification module card 50 shown therein is
It is of a larger size, such as the size of a normal credit card, but its function is exactly the same as that of the embodiment described above.

Next, a track will be described with reference to FIGS. These figures show details of a typical track comprised of a polyester plastic material laminated on both sides of an intervening copper track.

At the removal card location 51 there are electrical connections indicated by reference numbers 52 and 53, which are then coated with a suitable long-lasting material such as gold or iridium. The connection points covered in this way are left open and left for the purpose of electrical connection.

At the switch, the connection to each subscriber identification module is achieved by folding the track, so that the track itself has an electrical connector, indicated at 54 on the one hand, and 55, on the other hand. There will be a total of two sets of electrical connectors shown. Since there is a break in the circuit at reference numeral 56, the electrical connector can be connected in various ways. For example, a common contact connector
It can be connected to either the electrical connector 57 or the electrical connector 59.

FIG. 17 shows the inside of the switch section. The track 60, indicated by reference numeral 60, is bent into an "S" shape. As a result, at the top, reference numbers 61, 62, 6
A switch connector, indicated at 3, is provided and two subscriber identification modules, indicated at 64 and 65, are inserted into the slot indicated at 66, back to back. It has become. As a result, the contact surfaces of both cards appear on the front side and come into contact with the contacts of the truck.

The electrical contact plate indicated by the reference numeral 67 is a switch operating plate 6 under the pressure of the sponge pad 68.
9, each electrical contact of the electrical contact plate 67 is operated by a switch, while the contacts 61 and 6
2, or on the other hand, a connection is made across the contacts by any combination of contacts 62 and 63. Thereby, the selection of the active connection of either the module 64 on the one hand or the module 65 on the other hand will be performed.

The case 71 and its cover 72 integrally house all the components described above. When assembled together, the cross section of the switch is as shown in FIGS. As can be seen from these figures, the truck 60
It is strongly folded at the position of reference numeral 73 to provide a top surface there. There, an electrical contact 67 is effectively achieved, and an effective electrical connection is achieved across the appropriate contact surfaces.

[0059]

As described above, the present invention can effectively cope with various types of digital mobile phones. Therefore, the user can freely select and use almost any type of digital telephone network provided by various digital telephone network providers, thereby improving the access efficiency to the communication means currently on the market. It can be greatly improved. In addition, the present invention can be easily attached to a hand-held phone by anyone, and the use of the present invention does not cause any trouble in a call effect, and also limits a callable distance, a region, and the like. Does not occur at all.

As described above, in the digital mobile telephones currently in circulation, the plastic body covers the mechanical part, and the wiring according to the present invention is sewn by opening and closing parts and connecting parts in various parts of the body. It is extremely easy to pass through the board, and since the electronic machine is not modified at all, there is no need to obtain permission from the phone manufacturer, and there is no possibility that you will not be able to accept the warranty responsibility. Absent. Not only that, the present invention has a feature that different module cards can be used together and that a call can be selected based on different logic.
It will bring great benefits to users.

[Brief description of the drawings]

FIG. 1 is a digital telephone of a first embodiment showing a state in which a battery and a module card holder are removed, and a conductive track is provided along an outer shape toward a switch provided on an upper part of the telephone; It is a perspective view.

FIG. 2 is a perspective view showing the upper side of the telephone shown in FIG. 1;

FIG. 3 is a perspective view of the telephone shown in FIGS. 1 and 2 as viewed from above from the rear, with a battery loaded and a switch switched from a first position to a second position. FIG.

FIG. 4 is an overall perspective view of the telephone shown in FIGS. 1, 2, and 3 as viewed from still another direction.

FIG. 5 is a perspective view of the telephone of the second embodiment showing the track from the removal card with the subscriber identification module (SIM card) cover open and the battery removed. .

FIG. 6 is a view of the same telephone set as that of FIG. 5 viewed from the same direction, in which the body of the telephone set is indicated by a broken line and a wiring portion is indicated by a solid line.

FIG. 7 is a view showing a state in which the module card holder is opened and a new type of replaceable card is about to be inserted in the same telephone as in FIGS. 5 and 6;

FIG. 8 shows the third embodiment of the telephone, with the battery removed for ease of understanding of the structure and a switch connected to the subscriber identification module provided on the back of the telephone. It is a perspective view.

FIG. 9 is a cross-sectional view of a telephone according to a fourth embodiment, in which parts which are not directly related to the present invention are indicated by hatching, and in particular, how wiring connecting the internal structure and the externally mounted module card holder is shown. .

FIG. 10 is a sectional view of an embodiment of a telephone similar to that shown in FIG. 9;

FIG. 11 is an internal cross-sectional view of the type shown in FIG.

FIG. 12 is a schematic view of a telephone according to yet another embodiment when applied to a telephone having a flip-type opening / closing cover.

FIG. 13 is a perspective view of the same telephone shown in FIG. 12 viewed from another viewpoint.

FIG. 14 is a plan view of a typical wiring track.

FIG. 15 is a perspective view of the wiring track shown in FIG. 14;

FIG. 16 is a cross-sectional view taken along line 16;

FIG. 17 is an exploded view of a switch section connected to a flexible wiring portion.

18 is a cross-sectional view after assembling the components of the switch unit shown in the exploded view of FIG. 17;

FIG. 19 is an assembled cross-sectional view of the switch unit shown in FIG. 18 as viewed from a reverse direction.

FIG. 20 is a side view of the switch unit shown in FIGS. 17, 18, and 19;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Digital mobile telephone 2 Front of telephone 3 Microphone 4 Speaker 5 Character display screen 6 Flexible wiring 7 Removable module card 13 External switch 14 Telephone 15 Small room 16 Slide cover 17 Holder 18 Removal card 19 Electrical contact 22 Switch device 23 Electrical extraction Card 24 Electric passage 25 Switch 26 Display window 27 End switch 28 Ejection card 29 External switch 30 Connector 32, 33, 37, 38 Subscriber identification module 41 Battery 47 Openable cover 49 Flexible truck 64, 65 Subscriber identification module 68 Sponge pad

Claims (12)

[Claims] 1. A digital mobile telephone of the type having a subscriber identification module, the telephone comprising at least two subscriber identification modules, a user accessible and a user having one of the modules. Or a switch means capable of selecting the other. 2. An external mounting holder to be mounted on a digital mobile phone currently in circulation, comprising at least two subscriber recognition module cards and one of the subscriber recognition modules in the holder. And a switch means for accessing the external subscriber recognition module card so connected to a subscriber recognition module removal adapter located in the existing internal subscriber recognition module card holder of the digital cellular phone. An external mounting holder for the telephone, wherein the external mounting holder receives the electrical connection means. 3. A digital portable telephone having a user-removable subscriber identification module card in an internal holder, wherein the internal subscriber identification module card holder includes any subscriber identification module and A take-out card for replacing and electrically connecting the subscriber recognition module card to the telephone, and a take-out card having a take-out wiring to each subscriber recognition module card is provided; Extending from the main body to the externally mounted subscriber recognition module holder, the externally mounted subscriber recognition module holder is adapted to hold at least two subscriber recognition module cards, each card having its electrical And the module holder is connected to a corresponding take-out wiring. An effective active connection of the takeout wiring is established from a first one of the subscriber identification module cards in the external card holder to a second one of the subscriber identification module cards in the external card holder. A digital mobile phone, further comprising a switch for switching to another card. 4. An ejection card for a digital mobile phone having a user-removable subscriber identification module card in an internal holder, wherein the ejection card is provided in the holder for each subscriber. A wiring for connecting the recognition module, the wiring extending from the main body of the mobile phone to an externally mounted subscriber recognition module holder to be mounted on the case of the telephone; Module holder for
At least two subscriber recognition module cards are held, each of which has an electrical connection connected to a corresponding one of the outgoing wires, and wherein the module holder is configured to enable the outgoing wires. Active connection from a first one of the subscriber identification module cards in the external card holder to a second or further one of the subscriber identification module cards in the external card holder. A take-out card for a mobile phone, comprising a switch means for switching. 5. A digital mobile phone having a user-removable subscriber identification module card in an internal holder, comprising a removal card in said internal subscriber recognition module card holder, The card repeats the electrical connection to the subscriber identification module card, makes the electrical connection in the phone, and
A wiring for connecting each subscriber recognition module, the wiring extending from the main body of the mobile phone to an externally mounted subscriber recognition module holder mounted on the case of the telephone, and The subscriber identification module holder is adapted to hold at least two subscriber identification module cards, each card having its electrical connection connected to a corresponding take-out wiring, and Establishes an effective active connection of the take-out wiring from a first one of the subscriber identification module cards in the external card holder to a second one of the subscriber identification module cards in the external card holder. A digital cellular phone, comprising: switch means for switching to a second card. 6. The digital portable telephone according to claim 2, wherein the wiring for taking out is composed of a substrate, a conductive track of each circuit on the substrate, and a cover. A mobile phone, which is a flexible circuit board. 7. The digital cellular phone according to claim 2, wherein the wiring for taking out is formed of a substrate made of a polyester plastic material, a conductive track of each circuit on the substrate, and a polyester plastic. A mobile phone comprising an integrated flexible circuit board comprising a coating made of a material. 8. A digital mobile phone of the type requiring a subscriber recognition module for establishing authorization and / or authentication of the use of a telephone network, said mobile phone comprising:
At least one of which is authorized to use the telephone network and / or
Or means provided for containing at least two memory modules, which are subscriber identification modules for authentication, each memory being in permanent electrical connection with other functional components of the telephone. The mobile phone is further operable at any time by the user, and additionally provided for the user to provide additional functions as far as the digital mobile phone is concerned; Characterized in that it comprises switch means adapted to select one, some or all of the module or part of the module, including electrically accessible memory and software programmed in the memory. Digital mobile phone. 9. The digital mobile phone according to claim 8, wherein the electrically accessible memory and the programmed software are provided at least in part by a module that can be accessed by magnetic connection / communication. A digital mobile phone characterized by being performed. 10. The digital mobile phone according to claim 8, wherein at least one of the modules has a module to perform a switch to a connection to a further functional element of the mobile phone. A digital mobile phone characterized by: 11. A digital mobile phone having a subscriber recognition module, wherein the mobile phone has at least two subscriber recognition memory modules, each module electrically connecting with a functional component element of the mobile phone. A device for maintaining the electrical connection maintained, and one or more of the memory modules accessible by or to the user and provided with at least one of the options. Switch means adapted to be selected by the user or all of them, means for holding a subscriber recognition module or further user insertion means, and a telephone line which is most easily connected through connection of a digital telephone. Having access means with logic for investigating the network and the most cost-effective telephone network, together with logic for other functions. A digital mobile phone characterized by: 12. A digital portable telephone having a subscriber recognition module, wherein the portable telephone has at least two subscriber recognition modules, each module electrically connecting with a functional component element of the portable telephone. A device for maintaining a connection, and a device accessible to the user, wherein the user is incorporated in or connected to an external module to add to the functionality of the digital mobile phone Switch means for selecting with a device that can be inserted by a user having an additional memory having an additional function provided by the user.