Techno Masala

To check your Mobile phone’s serial number, key in the following digits on your phone:* # 0 6 #A 15 digit code will appear on the screen. This number is unique to your handset. Write it down and keep it somewhere safe.
Should your phone get stolen, you can phone your service provider and give them this code. They will then be able to block your handset so even if the thief changes the SIM card, your phone will be totally useless.
You probably won’t get your phone back, but at least you know that whoever stole it can’t use/sell it either.

GSM -Global System for Mobile Communications

• Coverage - GSM has a wide coverage
• Identification - uses of SIM (Subscriber Identity Module).
• Roaming - supports roaming with in the country as well international roaming.
• Battery Power - more usage because data is always transmitted
• Data Speed - uses EDGE (Enhanced Data Rates for GSM Evolution) – Approximately 300 kbps.

CDMA - Code Division Multiple Access

• Coverage - Comparatively less coverage as there are many providers for GSM Cards
• Identification - part of phone that is one major disadvantage.
• Roaming - supports romaing but we need to have a separate card for International roaming.
• Battery Power - Less usage.
• Data Speed - uses EDO (Evolution Data Optimized) – up to 2 megabits per second.

Technorati Tags: GSM, CDMA