Well, one reason for this is that cell phones are heavily subsidized. Your company doesn't want to spend money for you to have a cheaper cell phone, only to have you take that phone to another provider.
Now this leads to the question of whether they could sell subsidized and non-subsidized phones. The subsidized ones could only stay on their network while the other would be able to change networks.
Technically it is no problem for switching from a CDMA provider to another and the same for a GSM provider. Of course you can't switch between CDMA and GSM prodivers with the same cell phone. The only thing stopping it is a sub-lock in the phone...which they don't want to give out on thier subsidized phone.
The only thing you missed is that CDMA stands for Code Division, Multiple Access not Channel Divison, Multiple Access. CDMA also uses 1.9 GHz and GSM in Europe uses 1.8GHz.
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I'm still waiting for the Bluetooth toothbrush.
...happens to be codenamed "Deathstar"...
so is my Slackware box
Well, one reason for this is that cell phones are heavily subsidized. Your company doesn't want to spend money for you to have a cheaper cell phone, only to have you take that phone to another provider. Now this leads to the question of whether they could sell subsidized and non-subsidized phones. The subsidized ones could only stay on their network while the other would be able to change networks. Technically it is no problem for switching from a CDMA provider to another and the same for a GSM provider. Of course you can't switch between CDMA and GSM prodivers with the same cell phone. The only thing stopping it is a sub-lock in the phone...which they don't want to give out on thier subsidized phone.
The only thing you missed is that CDMA stands for Code Division, Multiple Access not Channel Divison, Multiple Access.
CDMA also uses 1.9 GHz and GSM in Europe uses 1.8GHz.