Would you like to call internationally from your mobile phone without having to pay the high per minute rates from your cell carrier or manually having to use a calling card and remembering to actually use the card in the first place?  Using the RebelSim Dialer Call through SIM, you can have your phone automatically intercept outgoing international calls to instead first dial your calling card access number, send the number you actually dialed, and ultimately connect your call at a cheaper rate (calling card rate + local minute rate from your carrier as opposed to international rate from your carrier).

What is it and how does it work?

What this device essentially allows you to do is have outgoing calls that start with either 00 (international), 1, or just 0 be automatically dialed through a calling card or VoIP access number instead of direct.   This paper thin device actually fits between your SIM card and your phone in order to “capture” what you are dialing, then dials the access number first when necessary:

rebelsimcard rebelsimcard2

Usually, when dialing internationally direct from your mobile phone, you will be charged fairly high rates per minute from your carrier such as £1.45/min calling from Tesco UK to US or $1.49/min calling from AT&T US to UK.  Then, of course, you have local calls which will either be part your monthly minute plan or generally a much cheaper per minute rate.

With international calls, you can traditionally get around these higher rates by using a calling card with a local access number that you can call as a “local number” from your cell phone (UK landline numbers if you live in the UK or any US number if you live in the US).  Then, dial the international number through your calling card and get charged “local minute rates” from your cell carrier plus whatever international rates you get from your calling card.

For example, say I wanted to call home to the states from my mobile phone in the UK.  Normally I would dial 001 999 999 9999, with the “00” meaning international, “1” meaning the states, followed by the number.  With my particular cell carrier (Tesco), this would cost me £1.45 per minute, but with my calling card, it would cost me £0.01 per minute – quite a big difference! Using the Rebel Sim Call through SIM, it will see that the number starts with 00 and it will instead dial the access number for my calling card when I press send to dial that international number.  Once the phone has dialed my card’s access number, it is then able to automatically send the digits (via DTMF*) of the number I actually dialed thus completing the international call via my calling card as opposed to directly from my mobile carrier.  My call will now cost £0.01 per minute plus minutes from my monthly minute plan as opposed to £1.45p per minute.

(* less technical explanation:  Think about how you normally use a calling card. You call the calling card number, it prompts you for the number you want to call, and then it connects the call.  The RebelSim Call through SIM automates this process by “seeing” that you dialed 00, then dialing the calling card number, pauses, and then dials the original out going number)

How to setup:

  • First off, this won’t work if you are using a micro SIM – sorry iPhone 4 users – because the RebelSim is of “normal” SIM size, but it will work for anyphone that uses a normal size SIM.  Also, the latest (v2) firmware also does not support entering an ID or pin number, so you’ll need a provider that works by caller ID (you call the access number, and it recognizes your caller ID for authentication for your account); that being said, v2.1 will be released soon which will allow the use of an ID/pin, as well as additional configuration options than the ones discussed later on below.
  • What you have to do first is punch a “hole puncher” size hole in the top plastic part of your SIM card. This is for the chip on the Rebel Sim Call through SIM to fit in between your phone and your normal SIM (you can either buy a RebelSim cutter, or use your own hole puncher).  Don’t worry, it’s just plastic on the top of your SIM card – it won’t damage anything and you can still use it even if you are not using the RebelSim.

hole punch cutter cut together

  • Then, of course, you need to put them in your phone.  The manual suggests putting the Rebel SIM in first, then sliding your normal SIM in on top of it – I’ve found it easier at times to just put them in together at the same time, but I suppose it’s just a matter of how easy/hard it is to access your SIM slot
    in the phone
  • Next, you’ll need to have a calling card or VoIP service that has an access number.  Any calling card has an access number, as that’s how they’re setup to work, but not all VoIP providers have one.  Personally, I use a VoIP provider as they usually don’t charge connection fees, their rates are easy to understand, and they can be used with a SIP/Soft phone as well.   I personally use VoipFone (rates and access numbers) as they allow pin-less usage but there are plenty of others such as Call Centric (rates andaccess numbers) if you are in the States and  VoipTalk (rates and access numbers) in the UK (once v2.1 comes out for the RebelSim Callthrough).

    Note:  which ever calling card or VoIP provider you use must have an access number that doesn’t require you to use a pin since the current firmware of Call Through only supports dialing the access number.

  • And last, you need to add the access number and configure the options on the Rebel Sim.  When you turn on your phone with the RebelSim, you should see a new menu option.  On my Pirelli DP-L10 wifi phone, you can see this on the main menu, with other phones it will probably show up in different locations but either way a new option will appear somewhere and will have the same configuration options/steps: 
    with rebel

    Select the new RebelSim option and you will be brought to the configuration page with the following options: 
    – Disable (don’t use the RebelSim) 
    – *Enable (use the RebelSim) 
    – Editing Number (edit the access number) 
    – Dialing Rules (4 options on when to use the RebelSim: when there is a 00, 1, or 0 in the beginning of the dialed call, or use it always) 
    – Dialing Speed (this is basically how fast the number is dialed once the access number is called – I haven’t had an issue using it on “Fast”) 
    – Dialing Mode (two options, don’t really know what it means, but ICC2 is said to be needed for the iPhone, and ICC1 works on my Pirelli phone)

    All you should have to mess with here is the Editing Number and Dialing Rules.  Select Editing Number to change the access number and Dialing Rules to determine when the RebelSim should be used.  For my particular usage, I use Dialing Rule “00” to use for international calls and Editing Number “02070990707” as the access number for VoipFone.co.uk.

    Then, dial out!  In the picture below, you can see that I dialed a random international US number (001 770 123 4567), and when I pressed send, you can see that the phone automatically called the access number instead (02070990707): 
    dial internationalOnce the call is connected, you hear a dial tone from the speaker (which is VoipFone saying it’s ready for a number to connect to).  After a couple of seconds, the dial tone goes away which is when the RebelSim dials the number I actually entered (you don’t actually hear anything until you hear ringing which means the number you dialed is ringing) – and that’s it, you just made a cheaper international call from your mobile phone.

Final thoughts:

Using the Rebel Sim Callthrough SIM is a great way to make dialing international numbers from your cell phone cheap and easy.  Could you simply remember to dial the access number and skip the use and purchase of the RebelSim?  Yep!  Could you opt to just use a smartphone app to use a data connection and use Voip?  Yep!  That being said, I like the idea of this “working in the background” because I could then give it to a friend, family member, etc and not have to explain to them how to make international calls or have to worry about someone, or myself, accidentally making an expensive £1.45/min call.

Another useful aspect about this particular Rebel Sim (“Rebel Sim II”) is that you can load 3 different types of firmware on it (providing you have one of their programmers):  the Call Through (v2), Call Back (v3), or their HTC unlocking firmware (v1).  Plus for £7 + shipping (worldwide), it’s not too bad of a deal!


  • Set it up and forget it approach for cheap international calls from mobile phones
  • Cheap
  • Will work with any phone that uses regular size SIM cards (the phone can be locked or unlocked, from anywhere in the world, on any carrier, etc)
  • Can be repurposed with 3 different firmwares ( one for call through, one for unlocking HTC phones, and the other a different approach for cheap mobile calls)
  • Simple to configure


  • Latest firmware does not allow to use access numbers that require you to enter a PIN or ID number to use (though it can with firmware v2.1, which is to be released soon)
  • Can be a bit tricky to sandwich it with your existing SIM card and push into the SIM slot on some phones
  • Doesn’t work with micro SIM cards (won’t work with iPhone 4)
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Over the next few weeks for the 2010 World Cup it’s been estimated that as many as 25,000 football fans from the England & 10’s of thousands from around the world will be going off to South Africa.

The Rebel Simcard Team have made a guide  How Not to not get mobbed by Roaming Charges while travelling and created some special Deals on some clever products that can help you Beat the Networks at thier own Game game with a little bit of Know how.

If you’re one of those preparing to make to make the trip, a few preparations before you go will ensure that your main memory of the tournament isn’t an unexpected mobile phone bill that you will be receiving up on returning.

So Dont go packing your bags before reading and understand all the options you have to save yourself Burning Money while on holiday.

It’s been estimated that fans travelling to the World Cup could spend hundreds of pounds calling, texting and uploading pictures from their mobiles.

Very important and mostly over looked is the Fact the travellers forget to turn of their Voice mail in the sim they are roaming with and can end up with £100’s of charges simply but not answering their phones. When you are roaming and you dont answer then the call is sent to your voice mail system and full roaming charges apply as if you were making a call so beware.

You see these charges for the UK mobile network in the List at the end of the page. You will see that its not cheap at all and they are planning to make huge profits from you.

Although international roaming call charges in the EU have fallen, roaming charges in countries like South Africa averaging £1/minute for making and receiving calls make a big hole in your pockets in no time at all.

Once in South Africa it may be cheaper to buy a local SIM card which you can put in your unlocked handset and used to dial numbers in that country and use call back services to call back Home.

SIM cards can be bought at many retail outlets including mobile phone shops, supermarkets and grocery stores or online from rebel simcard or solutions point websites.

If you want to upload pictures and videos from the match to the internet, then it may be cheaper to use a computer at an internet café or at your hotel rather than use your phone as the prices for MMS is not cheap at all and averaged around £0.75 each to send if your roaming and is much cheaper with a local simcard for South Africa

Most international hotels have wireless connections either in guest rooms, business centres or some restaurants, and internet cafes can also be found throughout the country but if you want to take your own wireless unlocked dongle or Mifi router you will have much more flexibility.

If you are going to use the web while away then avoid using public terminals – such as internet cafes – for online banking. Also, remember that wireless connections usually not using Latest firmwares in thier wireless routers with WEP2 standards and use the older crackable ones so your data is not safe and can be viewed by others.

Useful bits of Kit and Services you can use to Save and how to use them.

Rebel Simcard II with Unlocking Function

You can use a local South Africa network simcard in 100’s of locked mobiles without Loss of Warranty

This is the best way to use another network simcard in a locked mobile mobile with out using cables and software or codes.

Mobile Phone Code Unlocking Service

If you live in such a location and you are leaving the country in a hurry then look for our code unlocking services where we can supply the unlock code for your phone after you supply us with the IMEI and model number of you phone and we can email you back with the code normally within 24 to 48 Hours.

Unlocked Usb Data Dongle

Huawei O2 Mobile E160 USB Modem BRAND NEW UNLOCKED

If you have a Laptop then these kinds of Dongles are great to avoid Roaming charges by using a local simcard from south Africa supporting connection speeds of 3.2 Mbs.

Unlocked Mifi wireless Portable Hot Spot

Unlock Pack  MiFi Wireless (Wi-Fi) Modem

If you have more than device on which you want to use WIFI or are travelling in a group you can share a wireless internet connection with is personal and portable Router with download speeds of up to 7.2Mbps supported.

South Africa Local Network Simcard

South Africa SIM Card for Vodacom

By using the Local Simcard from South Africa Calls/SMS/MMS are much cheaper to make and you can make international calls back home cheaper than the network simcard you are roaming with as well use in the wireless dongles with GPRS and 3G Data services.

Also you can give the number to family and friends to call you from the UK or south Africa and later on i show you how your friends and family can contact your on your South africa Number in a Cost Effective way.

Pirelli Discus DualPhone DP L10 GSM WIFI SIP TriBand


Dual Mode Handset (Wi-Fi/GSM)
GSM tri-band (900/1800/1900MHz)
Wi-Fi 802.11b/g
SMS, MMS, WAP, E-mail

GSM tri-band (900/1800/1900MHz)

Wi-Fi 802.11b/g    SIP / VOIP / SkyPE    SMS, MMS, WAP, E-mail

Make Wifi Skype Calls while away from home and Save. You can use with any gsm network simcard like a South Africa Local Sim and also with any VoIP service provider using WIFI

• 1x Pirelli Discus DualPhone DP L10

• 1x User manual

• 1x Li-Ion Battery

• 1x travel charger with mini-USB plug & Desk Top Stand as in pictures.

• 1x Headset with earphone/microphone

• 1x mini-USB cable

• 1x CD with PC utility

User Manual Can be downloaded here

Unifed Sip/Voip/Callback/Call though Based Calling Service Account.

This is a interesting service as it offers so much in 1 account and all the family can save also.

If you take with you for example the Pirelli phone then this has WIFI & Sip and using the service from a VoIP phone provider you  can configure this phone to allow you to make and receive calls at very Cheap prices with great quality from Wifi connections anywhere in the world.

Call UK Landlines from under £0.02 p/m and mobile for £0.15 p/m Though VoIP & SIP

Also due the unified system and the one account with Voipfone you can use the Call Back function to save on calls back home and also automate this via the Rebel sim Callback Dialler below using a local south Africa simcard when you don’t have a VoIP connection available.

Also so your family and friends can call you for a good price and with the same Voipfone account check the service page here to call South Africa at great rates of around £0.20 to South Africa Mobiles using via Call through for home phones and mobiles in UK.

Rebel Call Back Sim

Rebel Sim CallBack Call Routing Dialler

This allows you to automate out going calls over gsm networks through the Call Back system automatically so you can direct Dial the international number you want to call and sit back while the rebel sim handles the DTMF and number inputting  for you. The prices you pay are much less than using the local South Africa simcard and around Call UK landlines from under £0.25 & mobiles for £0.40 per minute via Call Back System. User Manual Download.

Some Special Deals for World Cup Traveller

World Cup Saver Super Pack

World Cup Saver Super Pack

I think you will its scandalous to See How much the UK Networks want to charge you.

Savings Vs International Roaming

Use Full information about South Africa and Dialling codes.

To call South Africa from the UK, dial 00 27 followed by the area code

Area codes include Rustenburg (14), Cape Town (21), Port Elizabeth (41), Bloemfontein (51) Johannesburg (11), Cape Town (21) and Durban (31)

To call the UK from South Africa, dial 00 44 followed by the code

The Rebel Simcard Team are happy To announce the Availability of the Latest Call Routing Functionality for the Rebel Simcard II Users code named Rebellers.


Rebel Sim II Firmware is Released With Call Control Functions. This Means if you have a Rebel Simcard II then you can program the rebel sim II with the new firmwares to use these functions.

As you know mobile networks often like to make huge profits from users when they Dial an international Number. Charges for calls can often reach £1 per minute.

Also while you are romaing and away from home costs for making calls home can often cost a few Pounds a minute. Dont Worry the Rebel Simcard Team have a Solution For You To Protect yourself.

When the Rebel simcard was first conceptualised 2 Years Ago by the Rebel Simcard R&D Team at Solutions Point Limited it was clear that not only did we want to help Rebel Sim users save on Network Unlocking Charges but we wanted to liberate the rebel sim users by providing Automated Sim Call Control Functions that could Re Route High Priced International Calls via a cheaper route through Voip providers of the users choice.

Rebel Sim II users can choose how they wish to use the Rebel Simcard II by choosing any of the 3 Firmwares and load via a programmers or purchase pre programmed Rebel sim II’s pre loaded with Callback or Call through Functions

Functions Supported Using Rebel Simcard II

1 Mobile Phone Unlocking

2 Automated Call Through Sim Dialling Function

3 Automated Call Back Sim Dialling Function


How Does Call Through Work and How can i Save ?

The Call Through Automated Dialler Routes your International Calls Via Your Selected Provider.

The Way it Works is You Simply purchase The Rebel Sim Call Through Dialler and insert this between your network sim just like when using the Rebel simcard To unlock the Phone.

Instead of Unlocking the Rebel sim Dialler can Protect you when you Dial an international Number beginning with 00 from your mobile phone. Rebel Sim Callthrough Dialler then STOPS a Direct Call being made to the international Number and instead Dials a Access Number which is a Land line number and then Automatically sends the number you dialled via DTMF and you are connected buy pay alot less via your Telecoms Supplier.

Rebel Sim Dialler Callthrough

This is a Rebel Simcard II with Rebellers Call through Call Control Firmwares.

You can Automate DTMF Send for Call through Voip/calling card Service providers.

This is ideal if you want to call to international numbers and 0800/0845/0844/0871 numbers

All you need to do is make a account with a Good provider like www.voipfone.co.uk and credit your account.

Then insert this Rebellers Call through sim with your network simcard and you then Saves and in the Rebellers STK menu add your access number and enable the function.

When ever you need to call an international number that begins with 00  from the mobile phone the call is routed via the Call through access number for voipfone which is a UK Landline number and is Free to call from many Contract users & is also classed a free minute of any inclusive minutes you receive from  your network provider in a monthly pre or post paid plan.

For example say i am an orange Contract user with 1200 Free call to Mobiles and Landlines a month.

However whenever i make an international call the cost can be up to £0.35 /minute and and also when i call NGN Number like  0800/0845/0844/0871 it costs from 10 to 35p/min and these calls do not come out from my Free monthly Allowance.

The way to Reduce these costs is to use the Call Through Services from Good Voip Provider.

After you make an account with eg www.voipfone.co.uk and add your mobile phone number to your account you can then from the the mobile phone call the access number 02070990707 and will be provided with Dial Tone so you can enter now any number.

Lets say i need to call an China from the mobile phone. Orange want to charge me over £1/minute.

Instead if i called the Call through access number 02070990707 i would get dial tone and can now enter the international number and By Pass the Charges my network provider Orange would like to charge me.

Using the Call through Route the call costs only £0.02/min and the call to the Access number cost is Free as its included in the monthly allowance.

Now Image You have Rebel Simcard II Rebellers Call Through installed in your GSM Phone and you can automate the Dialling of international numbers that start with 00 and Auto Route the Calls via Land line Access numbers & send the Originally Dialled number via DTMF to Auto Connect Calls.

Video Demo Call Through

How Does Call Back Work and How can i Save ?

The Call Back Automated Dialler Routes your International Calls Via Your Selected callback Provider.

The Way it Works is You Simply purchase The Rebel Sim Call Back Dialler and insert this between your network sim just like when using the Rebel simcard To unlock the Phone.

Let me just explain the most users around the world would use rebel sim II call through V2 firmware for lease cost routing from mobiles.  However the Callback is another clever system to help you beat the high charges networks want to charge you.

I will give an example now that i travel to USA on a 3 week visit and if while Roaming on the Orange network

Calls made while in USA will cost 95 p/min    and for Receiving 55 p/min

Now thier are few diffrent options.

1 You install the callback sim with your orange sim

2 You purchase a local simcard from USA to use while you are thier

Now you just add the callback access number from your voip provider 00442070990808 which in this example is the www.voipfone.co.uk callback access number.

Rebel Sim Call Back Dialler STOPS a Direct Call being made to the international Number and instead Dials a Access Number which is a Land line number given by your service provider and gets a busy signal and call is not connected.

Then a call comes back from your service provider and the Rebel Sim Call Back Dialler Automatically sends the number you dialled via DTMF and you are connected but pay alot less via your Telecoms Supplier.

If you have a spare Rebel Sim II then you can also program the firmwares for Call Back or Call through using the programmers and make saving when calling international numbers.

Rebel Compact=Rebel Pro Programmer

Rebel Simcard II Firmware Versions Description Rebel Menu Date Download
Updates Rebel Simcard II update Firmware v1 Pre Loaded With 12 Modes in STK for Universal Unlocking

The Pdf guide has just been updated and can be downloaded from here

YES 10 July 2009 Download
Updates Rebel Simcard II update Firmware v2 Automated Call Through Function when dialling 00 international Number and Auto DTMF send to Calling Gateways

Rebellers Firmware for Rebel Sim II user Manual

Yes 21 December


Updates Rebel Simcard II update Firmware v3 Automated Call Back Function when dialling 00 international Number and Auto DTMF send to Calling Gateways

Rebellers Firmware for Rebel Sim II user Manual

Yes 21 December



Download Zip of All Rebel simcard II Firmwares Plus Programming Software in 1 Download