GB2484894A - Mobile telephone dialler unit for low cost routing - Google Patents

Mobile telephone dialler unit for low cost routing Download PDF

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Publication number
GB2484894A
GB2484894A GB1017550.3A GB201017550A GB2484894A GB 2484894 A GB2484894 A GB 2484894A GB 201017550 A GB201017550 A GB 201017550A GB 2484894 A GB2484894 A GB 2484894A
Authority
GB
United Kingdom
Prior art keywords
sim card
mobile telephone
call
unit
dialler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB1017550.3A
Other versions
GB201017550D0 (en
Inventor
Pen-Lo Wang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RABBIT RABBIT MOBILE Ltd
Original Assignee
RABBIT RABBIT MOBILE Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RABBIT RABBIT MOBILE Ltd filed Critical RABBIT RABBIT MOBILE Ltd
Priority to GB1017550.3A priority Critical patent/GB2484894A/en
Publication of GB201017550D0 publication Critical patent/GB201017550D0/en
Publication of GB2484894A publication Critical patent/GB2484894A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20—Transfer of user or subscriber data
    • H04W8/205—Transfer to or from user equipment or user record carrier
    • H04M1/274566—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
    • H04M1/2745—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips
    • H04M1/27485—Appending a prefix to or inserting a pause into a dialling sequence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0277—Details of the structure or mounting of specific components for a printed circuit board assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
    • H04M1/2745—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips
    • H04M1/275—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips implemented by means of portable electronic directories
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • H04M17/023—Circuit arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • H04M17/026—Constructional features
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/42—Least cost routing, i.e. provision for selecting the lowest cost tariff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/72—Account specifications
    • H04M2215/724—Linked accounts
    • H04M2215/7254—Multiple accounts per user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/74—Rating aspects, e.g. rating parameters or tariff determination apects
    • H04M2215/745—Least cost routing, e.g. Automatic or manual, call by call or by preselection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42025—Calling or Called party identification service
    • H04M3/42085—Called party identification service
    • H04M3/42102—Making use of the called party identifier
    • H04W76/02—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/183—Processing at user equipment or user record carrier

Abstract

An automatic mobile telephone dialler unit is disclosed for operation with mobile telephones to enable calls to be placed over low cost routes, without the need to change the service provider, SIM card or mobile telephone number or manually enter a prefix before dialling. The dialler unit 7 enables regular conventional dialling procedures to be employed with the dialler in place without interfering with, for example, the dialling of local and national telephone numbers (low cost calls) and further, can be installed without interfering with or in any way altering the telephone company's lines or equipment. However, if the dialler unit detects a call to an expensive destination (e.g. international, long-distance) it acts to bypass normal calling procedures within the SIM and route the call instead (i.e. divert the call) according to procedures stored in the dialling unit over a lower cost route to the destination, such as by routing the call via an alternative access number associated with a low cost route. The dialler unit 7 is attached to the SIM module (Figures 1 & 2) of a mobile phone and may be stuck thereon with adhesive 25 such that the circuitry of the dialler unit 10 and SIM 6 overlap exactly. In one embodiment the dialler unit pierces the circuitry of the SIM when attached to enable the detection by the dialer unit of dialled numbers. A jig (Figures 5 & 6) may be used to accurately attach the dialler unit 7 to the SIM (Figure 1).

Description

MOBILE TELEPHONE
This invention relates to mobile telephones and more particularly to the use of mobile telephones.
In general mobile telephones are used with both telephonic connection to the historically available so-called land lines and also to mobile telephone networks.
Such mobile telephone networks are conventionally under the control of major suppliers of mobile telephone equipment who determine the cost of the use of the telephones involved in relation to both calls within the network with which the mobile telephone is specifically associated and externally to other networks and land lines.
In other words, the costs arising from the use of a mobile telephone are related to whatever network the telephone user has entered into a user relationship in order to effect a telephonic connection.
In practice, the cost of using a mobile telephone differs from one mobile telephone network to another network. In practice, the costs involved generally increase when a 1 5 telephone associated with a first network accesses a telephone number associated with a second network or with a land line.
Also in practice, the costs arising when making telephone calls differs from country to country. In practice each country has effectively two charging levels a first in relation to internal usage of the telephone and a second in relation to international calls involving mobile telephone systems, conventional land line systems and additionally between 0S..*S * mobile networks and landlines that are at generally much higher charging levels. In other words when a mobile telephone user based in a first country wishes to make an *.** overseas call such a call will involve the use of telephone networks in the home country and also in the overseas country. Such international call usage will automatically incur a much higher charging level, quite often at a level that is considered to be at an extortionate level in comparison with local calls.
It is an object of the present invention to enable the use of a mobile telephone in such manner avoid such excessive charging levels.
Broadly, according to a first aspect of the invention there is provided an attachment for operational coupling to a so-called SIM card of a mobile telephone, the attachment being arranged upon the dialling of a telephone number by the associated telephone automatically to divert international and/or other dialling signals involving a user charging level above a predetermined reference charging level for transmission to a called telephone number by way of a dialling signal network involving a charging level below said reference level.
Broadly, according to a second aspect of the invention there is provided a method of routing telephone calls being dialled by a user of a mobile telephone from a higher charging level signal route to route involving a lower charging level whenever the number being dialled falls within the higher charging level.
Broadly according to a still further aspect of the invention there is provided a method of reducing the cost of using a mobile telephone by providing the mobile telephone with means for automatically diverting dialling signals associated with a first signal routing system involving a first charging level to a second signal routing system involving a second charging level that is cost ways lower than the first whenever the telephone number being dialled falls within the higher first charging level. 0sI
In accordance with the proposals of the present invention the diversion of said signals is by way of a secondary telephone dialler unit including an integrated circuit capable of detecting the dialling of called telephone numbers by a signal routing network involving a cost charging level at/or above a predetermined level and diverting such * detected dialling signals to a network involving a cost charging level below the predetermined cost charging level, the unit being so operationally coupled to the SIM **** card of a mobile telephone that on dialling a number that would result in a dialling charge above the predetermined level the associated signals arising within the mobile telephone circuitry are automatically diverted by the secondary telephone unit away from the dialling and cost establishing sections of the SIM card to a dialling net work involving cost charging below said predetermined level.
In other words the secondary telephone dialler unit can be arranged to allow local calls being made on the telephone to which it is connected to bypass the secondary dialling unit signal divertingarrangements whenever the telephone call involves a low cost level * -3--connection network and to thus allow the SIM card to process the dialled local call in conventional manner.
Since it is conventional practice to use special dialling codes prefixes when it is desired to make international calls the secondary dialler unit can be arranged automatically to respond to such special dialling codes prefixes in such manner as to initiate said route diversion.
In particular it is proposed according to the invention to position the secondary dialler unit incorporates integrated circuitry that enables the requisite signal diversion and associated routing, and telephone usage calculations in face-to-face/superimposed 1 0 relationship with the standard SIM card of a mobile telephone.
In practice, it is important that the incorporation of the secondary dialler unit should not interfere with the integrity and normal operation of the SIM card in its capability of normal usage operation. In other words the use of the secondary dialler unit should not require any physical modification and/or alteration of an installed SIM card.
1 5 In accordance with a still further aspect of the invention there is provided a method of mounting the secondary dialler/routing unit to a SIM card using a jig plate to which the secondary element/unit is initially temporarily mounted using an adhesive strip *...
material, positioning the Jig plate relative to the SlM card so that the electronic circuitry �t. S..
* of the secondary dialler unit is correctly superimposed upon that of the corresponding circuit regions of the SIM card, and transferring the secondary dialler unit from the jig plate onto the SIM card.
Preferably the secondary dialler unit is retained upon the jig plate by an adhesive strip *5** *:*. having a first adhesive strength and following said transfer the secondary dialler unit is adhered to the SIM card by means of an adhesive layer having stronger attachment strength than that between the secondary unit and the jig plate.
For a better understanding of the invention and to show how to carry the same into effect reference will now be made to the accompanying drawings in which:-Figure 1 schematically that surface a SIM card that faces outwardly when installed in a mobile telephone; S -4-Figure 2, schematically illustrates the hidden surface of the SIM card of Figure 1 when installed in a telephone; Figure 3 schematically a secondary routing/dialler unit of the invention with the Figure illustrating a first surface of the unit; Figure 4 schematically illustrates the opposite side of the unit of Figure 3; Figure 5 schematically illustrates a secondary dialler unit when position in a locating jig; Figure 6 is a sectional view on the line Vl-Vl of Figure 5 Referring now to Figure 1 a SIM card 1 is illustrated as though it has been mounted in a mobile telephone that at a designated locating region provided in the interior of the mobile telephone. ln practice, since there are many different models of mobile telephones, a considerable number of dialling signal utilisation networks available for use with mobile telephones SIM cards have an essentially standard physical size and shape so as to be able to be installed in a range of mobile telephones. This shape is shown in Figure 1 1 5 As will be seen from Figure 1 the SIM card 1 includes a substrate of usually plastics material that is of a generally rectangular form with one corner region 2 thereof cut-away. By providing this cut-away region 2 the installation of the SIM card 1 in a S..
telephone (not shown) with a correct orientation is facilitated. Figure 1 illustrates the SIM card surface 3 that is outwardly facing when installed in a telephone.
Referring now to Figure 2 this very schematically illustrates the reverse side 4 of the SIM card shown in Figure 1. This side of the SIM card carries th4ntegrated circuitry (schematically represented by the dashed line rectangle 5) by means of which electrical I..
signals resulting from operation of any of the operating keys (not shown) of the mobile telephone are converted into dialling signals for application to any appropriate telephone signals receiving facilities. The SlM card 1 also includes a group of electrical contact surfaces 6 that are intended when the SIM card is mounted into the telephone electrically to connect with the dialling keys and their associated electrical connections (not shown).
The integrated 5 circuitry enables the dialling of telephones numbers required for making a telephone call together with circuitry for controlling the initiation of arrangements for establishing cost charging levels according to the routing network or * -5-networks involved. For example, as has been previously mentioned the circuitry can be arranged to initiate cost charging a local lower level for local calls and at a higher cost charging level for calls other than said local calls including, for example, international or long distance calls.
Referring now to Figure 3 this Figure schematically illustrates a secondary dialler unit 7 of the present invention. The unit/element 5 includes a wafer thin plastics substrate S carrying on one surface 9 thereof as indicated in Figure 3 a first region 10 incorporating a series of contacts strips 11 of such configuration that they correspond with the contact strips 6 of the SIM card 1 as indicated in Figure 2. Referring now to Figure 4 which schematically illustrates the other surface 12 of the unit 7 carries an integrated circuit 13 (depicted by the dashed line rectangle) that are intended to respond to the dialling/routing signals produced by the SIM card 1. This integrated circuit 13 amonst any other functions serves to divert the dialling/routing signals away from the corresponding dialling circuitry network of the SIM card when the dialling/routing 1 5 signals produced by the SIM card relate to the previously mentioned higher charging level and to transfer them to a signals transmission routing network incurring lower level charges.
Since the secondary dialler unit when in use is interposed between the SIM card I and *sIs the supporting regions of telephone the contact strips 6 of the secondary dialler unit 7 are deformed sufficiently to pierce the the wafer thin substrate to produce conductive fl pips 14 so positioned that when the dialler unit 7 is installed are able to make contact with the conductive strips 6 provided upon the SIM card 1.
* s. In order that the dialling element of the invention can electronically co-operate with the SIM card provided in the mobile telephone it is essential that it is so positionally mounted with respect to the SIM card 1 as to be able the pips 14 to make accurate electrical contact with said contact positions 6 of the SIM card 1.
It is convenient to note that is well known the telephone systems involving international calls have each been provided with a dedicated prefix. For example Germany is 49, the United States and Canada is, and the United Kingdom is 44. In addition, most countries have a special code for connecting a dialling of a telephone to international routes by a dialling prefix, that for the United Kingdaom being 00' In accordance with the proposals of the present invention a method of facilitating the positioning and mounting of the secondary dialler unit 7 of the invention involves the use of an element positioning Jig 15 which is schematically illustrated in Figures 5 and 6.
This Jig 15 comprises a flat plastics plate 16 provided with an elongate rectangular recessed region 18 having an external shape and size such that the SIM card 1 is able closely to nest into the recess.
A rectangular aperture 19 is provided in the card within the base of the recess. This aperture is of such dimensions as to provide narrow side ledges 20 and end ledges 21 upon which the marginal regions of the SIM card 1 rest when the latter is resting upon the jig platel6. In order to ensure correct orientation of the SIM card 1 when mounted in the the recessed region a corner region 22 corresponding to the corner region 2 of the SIM card is provided in the jig plate 16.
The aperture 19 is covered in on the side thereof opposite to the recessed surface by a strip 23 of adhesive material such that the sticky surface thereof faces towards the base 1 5 of the recessed region 18. A small rectangular aperture 24 is provided in this strip 23.
The dialler unit 7 is provided with a shaped adhesive strip 24 which comprises a series of narrow strips 25 including one extending lengthways of the piped end of the dialler sen unit 7, one extending engthways of a long side connecting with the cut off corner * 55555 * region, and a L shaped strip surrounding an end and the other side of the integrated SSS* circuit region of the dialler unit 7. This adhesive strip has an adhesive strength greater than that of the sticky strip 23 and is initially covered with a suitable cover (not shown).
One mode of mounting the secondary dialler unit 7 to the SIM card is as follows:-5*** *:*. The secondary dialler unit 7 is placed into the recess in the jig with the pips 14 uppermost and such that the integrated circuit 12 is facing towards the end of the recess with the corner region 22. The dialler unit 7 is pressed downwardly so that it is held in place by the sticky strip layer 23.
The cover to the strip 24 is removed exposing the strips 25.
The SIM card is then placed in position and is pushed firmly towards the jig 21 by using the aperture 24 to press directly against the dialler unit to ensure that the dialler unit 7 is firmly pressed and attached to the SIM card by the adhesive strips 25.
The sticky strip 23 is then removed. Since the adhesion of the latter is less than that of the strips 25 the strip 23 readily separates from its contact with the dialler unit 7 leaving the latter firmly attached to the SIM card.
The combined SIM card and secondary dialler unit is then removed from the jig for use with a mobile telephone. * S I...
S
S..... * S S... * S *555
S
**s*SS * S -S..
S S S... 5 * So S *

Claims (9)

  1. IBRITISH PATENT APPLICATIONNo: 1011550.3MOBILE TELEPHONE DIALLER UNITWhat is claimed is: 1. A programmable SIM card secondary mobiletelephone dialler unit; which attaches to the original mobile telephone SIM card for routing a telephone call from a mobiie telephone through a preferred low cost call carrier to a mobile telephone or landline telephone at a destination, the programmale SIM card secondary mobile telephone d jailer unit is connected via a mobile telephone network.
  2. 2. An alignment jig plate which comprises of a flat plastic or cardboard plate provided with an elongated rectangularrecessedreg ion having an external shape and size that the original SIM card is able closely to nest into the recessed area. This is used in attaching and mounting the programmable SIM card secondary mobile telephone dialler unit to the original mobile telephone SJM card. Once the SIM card is placed in position and pushed firmly towards the alignment jig plate and onto the programmable SIM card secondary mobile telephone dialler unit, then the combined SIM card and programmable SIM card secondary mobile telephone dialler unit are removed from the alignment jig plate for use with a mobile telephone.
  3. 3. The call will be routed via a pre-determjned access number and connected for phone conversation.
  4. 4. The caller completes the call by entering the number they wish to dial.The system traces the destination number and connects the caller.
  5. 5. Thecaller stays on the line while the system attemptsto connect to the destination party.
  6. 6. A caller may use the programmable SlM card secondary mobile tekphone dialierunit to gain access, after identifying their account, into the preferred low cost call carrier system that wilt then allow him or her oce caDs. -S
  7. 7. The invention can be used to originate a telephone call from a mobile telephone, without having the originating telephone line number charged for the call or without having to pay for the call at a later date.
  8. 8. The programmable SIM card secondary mobile telephone dialler unit can be used with multiple numbers. that can be storedin the telephones memory. For local andnational calls no further steps need be taken by the caller, as the programmable SIM card secondary mobile telephone dialler unit bypasses the secondary dialling unit at the preferred low cost call carrier, thus allowing the original SIM card to process the dialled call in the conventional manner. For international caUs,the caller need only dial an international prefix code followed by the area code and the destination number, to automatically call through the pre-programmed SIM card secondary dialler units access number.
  9. 9. An attractive feature of the present invention is that it can be used from a mobile telephone without the need to remember special access telephone numbers and without the need to use money or credit cards.Also, because thecompleted calls are nOrmally ona toH free number to the preferred low cost call carrier, the preferred lowcost call carrier can connect at the lowest routing rates and expensive call surcharges from some carriers can be avoided.Although the present invention has been described and illustrated in detail, it is clearly understood that the same is by way of illustration and example only, and is not to be taken.by way of limitation, the spirit and scope of the presentinvent ion being limited only by terms of the appended claims.
GB1017550.3A 2010-10-18 2010-10-18 Mobile telephone dialler unit for low cost routing Withdrawn GB2484894A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1017550.3A GB2484894A (en) 2010-10-18 2010-10-18 Mobile telephone dialler unit for low cost routing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1017550.3A GB2484894A (en) 2010-10-18 2010-10-18 Mobile telephone dialler unit for low cost routing

Publications (2)

Publication Number Publication Date
GB201017550D0 GB201017550D0 (en) 2010-12-01
GB2484894A true GB2484894A (en) 2012-05-02

Family

ID=43333980

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1017550.3A Withdrawn GB2484894A (en) 2010-10-18 2010-10-18 Mobile telephone dialler unit for low cost routing

Country Status (1)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2362782A (en) * 2000-05-24 2001-11-28 Dataflex Design Comm Ltd Routing of cellular communications calls
US6661890B1 (en) * 1999-03-17 2003-12-09 Charles N. Ellis Apparatus for prestored bypass dialing
US20040204117A1 (en) * 2002-03-28 2004-10-14 Comverse, Ltd. Roamers' friendly phone book - method and device
GB2436015A (en) * 2006-03-07 2007-09-12 Ghost Telecom Ltd Wireless device with single SIM operating as though it had two or more different SIMs
EP2106167A1 (en) * 2008-03-28 2009-09-30 Vodafone Holding GmbH Least cost routing of a communication link for a mobile communication device
EP2160052A1 (en) * 2008-09-01 2010-03-03 Vodafone Holding GmbH Method, system and adapter for connecting a plurality of devices

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6661890B1 (en) * 1999-03-17 2003-12-09 Charles N. Ellis Apparatus for prestored bypass dialing
GB2362782A (en) * 2000-05-24 2001-11-28 Dataflex Design Comm Ltd Routing of cellular communications calls
US20040204117A1 (en) * 2002-03-28 2004-10-14 Comverse, Ltd. Roamers' friendly phone book - method and device
GB2436015A (en) * 2006-03-07 2007-09-12 Ghost Telecom Ltd Wireless device with single SIM operating as though it had two or more different SIMs
EP2106167A1 (en) * 2008-03-28 2009-09-30 Vodafone Holding GmbH Least cost routing of a communication link for a mobile communication device
EP2160052A1 (en) * 2008-09-01 2010-03-03 Vodafone Holding GmbH Method, system and adapter for connecting a plurality of devices

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
http://web.archive.org/web/20100112114301/http://www.rabbitrabbit.net/howitworks.html, RabbitRabbit Mobile, See 'How It Works' demo video and Frequently Asked Questions on linked page, 12 January 2010 *
Rebel SIM card, Rebel SIM card user manual, www.RebelSimcard.com, 20 August 2009 *

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