jhup,
that's correct. CDMA phones have their equivelant of the info that would be on a SIM stored on board the phone (with the exception of the phones mentioned by trew…). The info is there, it is just not on a removeable card that can be cloned in a fashion to allow access to the phone while providing network isolation, hence the need for faraday/offline mode for examination.
Joe
……CDMA phones have their equivelant of the info that would be on a SIM stored on board the phone. The info is there, it is just not on a removeable card…..Joe
A CDMA phone can still roam in the US can't it ? That is a subscriber with one operator, say in the State of Texas, wouldn't need to change handsets to make calls in California?
If roaming is allowed does that make calls expensive given, I think in the States, subscribers are charged on CPP and RPP or do you have one standard tariff across the US?
… If roaming is allowed does that make calls expensive given, I think in the States, subscribers are charged on CPP and RPP or do you have one standard tariff across the US?
"Standard"? "Standard"???
If three hundred+ years of our modest history teaches nothing else, it is that nothing in the U.S. is "standard." This is especially true of carriers. I have an (allegedly) all-inclusive plan with nation-wide free roaming through Sprint. Yet, when I travel to a client's site in one particular nearby town, my handset squawks that it's mode is now "Digital Roam" and do I 'accept the additional charges?'
Erm,… no.
I always loved one of the US vendor's advertisement.
"Never ever a charge for roaming!"
That is because they used iDEN, and no other vendor ever used that. Obviously, there was no way technically for an iDEN based phone to hop on a CDMA, GSM, even TDMA or AMPS towers…
So, as AWTLPI said.. Ermmm… No standard.
Thanks jmech. So is it stored in some sort of a EEPROM or other type of solid state storage?
jmech, I always thought that CDMAs do not have a SIM, but they do have an equivalent on-board storage which has similar information.
I could be completely wrong, I just recall some black market phones in Malaysia that would work on Verizon network after some programming.
Wrong thought, even some new WCDMA network (telco's) are using sim cards in their cdma phones..
Biedubbeljoe, most Verizon Wireless cell phones I have worked with do not have a removable SIM. I also thought that CDMA phones had R-UIM instead of SIMs.
Which carriers in the US use such removable cards?
In S.Korea, the card is called USIM(Unieversal Subscriber Identity Module) in telecom industry. Thanks to trewmte, I studied about the cards in CDMA 3G. I realized that there are more than one card on CDMA, R-UIM,CSIM, USIM. I want to do more research to find out what people in each CDMA region call and consider. I haven't finished reading the spec trewmte attached, however, I am intereted in knowing about what and how they are different. However, you guys can have a brief idea about it. Please refer to these links.
http//
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Nebula
The Wiki subscriber identity module write up states
SIM serial number (SSN) digits ICCID 3F002FE2?
A typical SSN (19 digits). An example 89 44 10 1200 00 320451 0 is made up of several details as follows
The first two digits (89 in the example) refers to the Telecom Id.
The next two digits (44 in the example) refers to the country code (44-UNITED KINGDOM).
The next two digits (10 in the example) refers to the network code.
The next four digits (1200 in the example) refers to the month and year of manufacturing; December, 2000 in this case.
The next two digits (00 in the example) refers to the switch configuration code.
The next six digits (320451 in the example) refers to the SIM number.
The last digit which is separated from the rest is called the check digit.
I have a UK Vodafone SIM cards in front of me on the bench that when set out as above produces the following
89
44
10
0000
16
513377
0
1
G265
So what year is the Red 0000 and what do we learn from the Blue information?
There are a significant number of phones that can take two or three SIM cards. (and multi bands)
These are mainly devices in South China , due to the restrictions on cross boarder networking(China-H.K-Taiwan-Macao-Japan) and costs.
Also many many guys have 1 sim for the wife and a second sim for the girlfriend, (such is life in China), it allows them to keep in touch with both parties on different numbers , without the danger of two phones.
There is a place in Shenzhen (South China), behind SEC, where you can get ANYTHING related to protable phones, including 'cracking kits' ,'cloning hardware' , bare pcb's/partially populated PCB's, RF sections, and alot of kit for reverse engineering portable phones, you can even hire an engineer in any aspect of phone design. it is a forensic engineers wet dream.
I have never quite followed this with Wikipedia,
for example I have Voda SIM with me 8944 1000 3006 0023 5471 G468
8944 TELECOM ID AND COUNTRY
10 NETWORK CODE
0030 ??? Certainly wasnt made in 1930,
I also have an 02 card 8944 >ok- 11 >ok 0064??? 1964