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High School Cell Phones. The down side of GSM
January 7, 2008
12:34 pm
lorac
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A Noika 1600 translated "Looser! Un-Cool!"

MOTO RZER, LG Chocolate, Sony-Erickson 810i Walkman phone, Now you've got it Right!

Most High Schools ban Cell Phone use during class, however MP3's are usually allowed while students are working on their assignments. With an MP3 built into their Cell Phone they can pretend they are only listening to the MP3 but actually Text Message each other at the same time.

PROBLEM: If you have a "Cool" phone using GSM (ie Rogers, Speakout), it is a target, as a thief can easily get it unlocked and change the Simm. (Amost all students know someone who will do it for them.)
CDMA phones used by Bell, Telus, Virgin Mobile, can not be modified and are of limited, or no use if stolen.

If you're thinking of getting a higher end phone for a student in High School it is probably best to consider Virgin Mobile, you can purchase $100 worth of minutes good for 365 days, and Future shop has a Virgin MOTO RAZER on sale for $99. You'll be the BEST Parent EVER. (It won't last)

If you send your son/daughter to school with a Nokia 1600, if they think they can get away with it, see them return with it upgraded to a Razer etc. Current under the counter rate for HOT phone is approx. $50.00 .

January 7, 2008
1:26 pm
Elman
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CDMA or GSM if your phone is stolen, it CAN get unlocked by the thief and sold. Beside why would you want your kid to be listening to mp3 or texting while in school. Just give them good ol reliable Nokia entry level phone, you cant go wrong.

January 7, 2008
1:26 pm
Bylo
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PROBLEM: If you have a "Cool" phone using GSM (ie Rogers, Speakout), it is a target, as a thief can easily get it unlocked and change the Simm. (Amost all students know someone who will do it for them.)
CDMA phones used by Bell, Telus, Virgin Mobile, can not be modified and are of limited, or no use if stolen.

This has nothing to do with GSM vs CDMA or with locking/unlocking. First thing you should do with any phone is record its IMEI number. (Use the keycode *#06# ) That's a unique serial number that the phone broadcasts whenever it's used. If the phone is stolen call your carrier and ask them to add your phone's IMEI number to the worldwide blacklist. That phone will be unusable regardless of what SIM is inside it.

CDMA phones use a different serial number but the same applies. Call the carrier and get them to disable the phone.

January 7, 2008
4:24 pm
lorac
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Reply to Elman:

I personally see absolutely no reason why a student needs a cell phone at school regardless of the type. They are a definite distraction from both school work and normal social interaction.

January 7, 2008
6:57 pm
lorac
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Reply to Bylo:

It all sounds good, but what theoretically should or could happen can differ greatly from what what is actually happening out in the real world.

January 7, 2008
8:36 pm
Bylo
Guest
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It all sounds good, but what theoretically should or could happen can differ greatly from what what is actually happening out in the real world.

That may well be but it still has absolutely nothing to do with whether a phone is GSM or CDMA, or with whether that phone is locked or unlocked 😉

January 8, 2008
12:48 am
lorac
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Guests

Sorry Bylo, but it has everything to do with GSM and CDMA, which is why GSM phones are targeted.

True GSM phones have IMEI numbers instead of ESNs, and Most -- though not all -- carriers have the ability to blacklist handsets by IMEI, so they won't work if a different SIM is placed in them.

However:
- not all carriers blacklist phones,
- not many carriers share blacklists
- there are as many as 10% of IMEI are not unique and so service providers are reluctant to block Phones from a central list.
- knowledgeable thieves can change the IMEI numbers in most phones.

Combine this with the fact that CMD phones use an easily changed SIMM and the net result is that GSM phones are much more attractive to thieves.

January 8, 2008
8:12 am
Bylo
Guest
Guests

- not all carriers blacklist phones

Who in Canada doesn't?

- not many carriers share blacklists

Who in Canada doesn't?

- there are as many as 10% of IMEI are not unique and so service providers are reluctant to block Phones from a central list.

Please cite a reference that this is the case in Canada.

- knowledgeable thieves can change the IMEI numbers in most phones.

Please cite a reference that this is the case in Canada.

Combine this with the fact that CMD[A] phones use an easily changed SIMM

CDMA don't use SIM cards and CDMA phones that use RUIM cards aren't generally in use outside of the far east.