Q

Why don't CDMA systems have SIM cards in the handset?

Why don't CDMA systems have SIM cards in the handset?

 

The GSM air interface standard, which uses SIM cards, was designed so that your phone number and other information that identifies you as you -- could be easily transferred from one phone to another by simply transferring the card. The CDMA standard was not designed so that your identity would be that mobile. CDMA "hardwires" your identity into the components of the phone so that, among many other reasons, wireless operators hold more control over their customers and the mobile phones they use.

 

This was last published in October 2004

Dig Deeper on Wearable devices and emerging technology

PRO+

Content

Find more PRO+ content and other member only offers, here.

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

Start the conversation

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.

-ADS BY GOOGLE

SearchNetworking

SearchTelecom

SearchUnifiedCommunications

SearchSecurity

Close