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    SIM44 Hardware Products - Mobile Phone Comatibility Guide
Mobile Phone CompatibilityGuide SIM44
Our objective is to provide innovative communication services which are simple to use, feature rich and provide extraordinary value. It was with this in mind that we created the pre-programmed,SIM44, mobile SIM card, which can be used with any unlocked GMS mobile phone virtually anywhere in the world.
How SIM44 works:
In order for this application to work and deliver call savings,SIM44 works differently from your typical Mobile phone application. When making a call, the SIM44 SIM card diverts your dialling commands away from the local mobile operator that your phone is connected to, and instead, it sends your call to the central SIM44 Mobile Network. This dialling diversion will always produce several messages on your Mobile phone screen, such as “number not allowed”, “blocked call”, or even “invalid number”. Following this, the mobile phone screen may display “sending message”. ALL THESE NOTIFICATIONS ON YOUR SCREEN ARE PERFECTLY NORMAL and they are a side product of the unique method we use to set up calls on our Network. Thus, once you make your call, soon thereafter, your Mobile phone will ring as we call you back in order to connect you both to the SIM44 Network and to the party you are calling.
Mobile phone Compatibility:

We have discovered that our SIM44 application works differently amongst the wide variety of phones on the market today. As a result, we have created a “List” divided into five categories (A~E), showing the range of our SIM44 Network’s compatibility with the various Mobile phones that are currently being used around the world. The “A & B” List phones are the most compatible with our SIM44 network, with the “E” List phones being the least compatible.

Over the next few months, SIM44 will increase the compatibility of its service with as broad a range of Mobile phones as possible. Therefore, before you purchase and/or install the SIM44 SIM card, we urge you first to check the compatibility with your own Mobile phone. Additionally, if you intend to purchase a Mobile phone specifically for the SIM44 SIM – please select a Mobile phone with the highest compatibility level.

For a list of specific Mobile phones per the categories below, please see the Appendix below.

Category A: (Optimal)
This category of Mobile phones provides full integration with our SIM44 Network -where any manually, or directory, dialled calls will be placed automatically -without the need for there to be the “call-back” used by SIM44 to connect to calls to its Network. All calls placed by you will be recorded in the Mobile phone’s call register as out-going calls. This full integration will be offered with our own SIM44 mobile phone (release date TBA) and no doubt to be offered in due course by other Mobile phone manufacturers.
Mobile Phone Compatibility Guide SIM44
Category B: (preferred)
his category of Mobile phones is the same as with the A-Category above, with the exception that the Mobile phone will NOT automatically answer the connection to the SIM44 network once the dialling information is sent. Instead our SIM44 network will call you back in order to connect you both to the SIM44 Network and to the party that you are calling.
Category C: (acceptable)
This has the same degree of out-going call automation as Category A & B,
except the out-going call information is not stored in your Mobile phone’s
Call Register. This applies to the majority of Mobile phones in the
marketplace.
Category D: (not recommended)
This is a very specialised category, where the automated out-going call facilities are not available but, instead, there is an application that appears on the phone menu as “SIM Services”, which, when activated, lets you dial a manual number or any phone number that is stored on the SIM itself (not from your Mobile phone’s memory) by using a directory look-up function.
Category E: (not recommended)
Essentially this has no automated integration but any number can be dialled using the manual command string (which can also be stored in your Mobile phone directory using this format). Numbers should be dialled using the following format:
*125*1*{telephone number}#

As with all telephone numbers in the SIM44 Network, the telephone number in this string, must be inputted using the following format:

First the country code, followed by the national area code and then followed by the required telephone number.

You do not need to use the international access codes (such as “00” or ”011” or the “+” sign) and, conversely, you cannot dial a number without the country code at the front. To give an example, the number for the SIM44 head office would be, even from the UK, simply:

+4476241144900 or +447624129416

All short codes, such as “121” for Voicemail, work within this dialling format and do not require any additional country codes etc., -you dial them exactly as listed.

However, please note that, conversely, anyone calling you on your SIM44 number would need to call you by first dialling the international code of the country concerned, and then your number.

Mobile Phone Compatibility Guide SIM44 Summary:
SIM44 is committed to you, our Customer, to continually improve our service. As we progress -we want to make sure that any enhancements we create are made known to you. In addition to the accompanying Mobile phone compatibility Chart – we will have an online version available through our corporate Website (www.sim44.com). You can help us very much by sending us the details of any specific experiences that you have with a specific Mobile phone model to our technical team using <support@sim44.com>. We intend to release new versions of our SIM44 SIM Card to improve the levels of integration between our Network and the world’s many different Mobile phones -and so will be continually moving this wide ranging variety of Mobile phones through our Charts to higher levels of compatibility!
Building on our philosophy of bringing wholesale pricing to the retail, Mobile phone user world, we intend to sell fully compatible Mobile phones. So if you require a better, compatible mobile phone – please let us know and we will supply one directly to you. We will only supply phones that are specifically mentioned as being within the Category A or B.
We will also continually develop and enhance the SIM44 SIM application, including broadening the range of compatibility with various Mobile phones. While, for some of our SIM44 SIM card updates, we will be able to provision them “over the air” through the general GSM Mobile Network, some such SIM updates will require the physical replacement of your SIM. For this latter case, we shall only charge the standard replacement amount of £15 for a new SIM -and we shall only supply such new SIMs on receipt of a specific request from one of our Customers. Please note that our replacement SIM Card will always contain the same Mobile number as your existing Mobile phone.
To be kept yourself up-to-date regarding any developments that affect a particular brand and model of a Mobile phone, please register your own Mobile phone details with us by sending us your IMEI code (“International Mobile Equipment Identity”)
from your Mobile phone. To find out your IMEI code, enter: *#06# on your Mobile phone and make a note of the resulting number. Please then send this number to us at support@sim44.com.
From this IMEI code, we can tell the exact make and model of your Mobile phone and we shall store this data for future reference. At a later date, you will be able to enter this directly into your own SIM44 online profile.

Appendix
MobilePhone Compatibility Guide Appendix Phones tested by SIM44
Category A
Category B
Category C
Category D
Category E
Optimal
Preferred
Acceptable

Not Recommended

Not Recommended
> Normal Dialling
> Directory Dialling
> Records put into Call Register
(No answer of “call-back
required) – See “How
SIM44 works”
> Normal Dialling
> Directory Dialling
> Records put into Call Register
> Normal Dialling
> Directory Dialling
> Normal Dialling via a SIM setting
> Directory Dialling only from the SIM
> Manual string entry dialing only
SIM44
SIM44 Release

TBA
Motorola
V80
V180
V220
V360
V400
V560
V620
V635
RAZR V3
ROKR
Samsung
D100
D500
E330
E350
E600
E630
E720
E730
E800
Sony Ericsson
K300i
K500i
K750i
D600
Panasonic
GD55
Sony Ericsson
S700i
T290
T610
T630
T68i
W800i
Z500i
Siemens
S45
C55
A65
C65
M65
S65
SF65
SK65
SL65
Nokia
3100
6100
6310
6600
6820
2600
6220
6230
7610
9500
7250i
8150
6610i
6820a
LG
8150
Nokia
6310i
Motorola
MPx200
Sony Ericsson
P800
P910
P910i
Nokia
3310
6030
7110
7270
8800
5140i
8210e
All Windows
Based Phones
All Palm
Based Phones
SLVR
PEBL
6020
Mobile Phone Compatibility Guide SIM44
Phones Not Tested by SIM44
Motorola
A780
C115
E550
E680i
MPx200
Samsung
C100
P400
P730
T400
X460
X600
Nokia
1100
1101
1110
1600
2600
2650
3120
3200
3220
3230
3300
5100
5140
6021
6101
6170
6230i
6260
6630
6670
6680
6681
6822
7200
7260
7280
7600
7710
8910i
9210i
9300
N90
N91
Panasonic
A100
G70
X300
X70
X700
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