Saturday, September 26, 2009

MOBILE PHONE TIPS

Mobile phones are susceptible to liquid logging and there are chances that water / oil / milk / tea / cold drink / curry / shaving foam may get in and damage it. Please ensure you keep your phone away from all such things. The phone can not be repaired if it's undergone moisture damage. The manufacturer does not give any warranty for such cases.
The Liquid Crystal Display (LCD) may get damaged in case pressure is applied on the surface. While keeping the phone in the pocket or while seated, always check that it is not in contact with any sharp/hard object. It's advisable to use pouches or mobile phone covers to avoid LCD damage.
Modern mobile phones are designed to squeeze in loads of features in a compact size. The Printed Circuit Boards (PCBs) are multi-layered and are mounted with surface-mounted devices. The contact of such Integrated Circuits and components on PCB are in microns (µm) (10^ - 6 meters) and a small impact / shock / jerk may displace the components or break the tracks. The manufacturer does not give any warranty for such cases. Mobile phone pouches or covers are of great help in avoiding such damages.
The plastic cosmetic parts lose their glare/color due to heavy exposure to sun light. To avoid direct sun exposure, one must use mobile pouches or covers.
Every mobile handset has an IMEI number (International Mobile Equipment Identity), which is a unique number and one can access this number by pressing *#06#. The mobile warranty is attached to the IMEI number, and it's also useful in the event of theft.
The Emergency Number worldwide for Mobile is 112. If you are out of coverage area, dial 112 and the mobile will search any existing network. This number 112 can be dialed even while the keypad is locked.
If you lock your keys in the car and the spare keys are at home, call someone on your cell phone. Hold your cell phone about a foot from your car door and have the other person at your home press the unlock button, holding it near the phone on their end. Your car will unlock.
Mobile phones should not be frequently charged, it may reduce the battery life. Always track the battery charge indicator, and carry mobile charger in purse/bag/car to avoid the contingency of battery discharge.
Electronic items have deteriorative effect if contaminated with dust. The use of the pouches or mobile phone covers shall be useful to keep your mobile phone free from dust.
Nokia handset comes with a reserve battery. To activate, press the keys *3370#. The cell will restart with this reserve and will show a 50% increase in battery. This reserve will get charged when you charge the cell next time.
There are many authorized sources that provide entertainment software etc.
It's always advisable to install antivirus software on your mobile phone.
Make the best use of the user manual.
When your phone is out of network coverage, switch off the handset or else the battery may get drained.
Finger nails or sharp objects may damage the keypad. Use fingers while pressing the keys.
Bluetooth should be turned on only when it is required. Keeping Bluetooth on unnecessarily makes your phone open to malicious viruses.
To enhance the life of your charger, it should be unwound and disentangled.
While removing the battery, it's advisable to first switch the handset off.
When your mobile phone is not used for a long duration, remove the battery and keep it separately.
Always use accessories recommended by the manufacturer

Wednesday, September 16, 2009

DIFFERENCE BETWEEN GSM AND CDMA??

>Both GSM (Global System for Mobile Communications) and CDMA (CodeDivision Multiple Access) are technologies that work on radiofrequencies, with the mobile phone handset being the antenna receiving the signal.
> GSM uses SIM cards(Subscriber Identity Module) whereas, CDMA based phones do not.
>it is the SIM card that is tied to the network,where on CDMA networks it is the handset itself that is linked to thecarrier.
>Third Generation technology (3G) is used by both systems, so is fullycompatible with both. A handset that is 3G compatible can be used forboth GSM carriers and for CDMA signals
>
GSM Works as follows:--------------------- The entire frequency band is divided into chunks and each such chunk is divided into timeslots and each such portion is made available to a user. CDMA Works as follows:----------------------- The entire frequency band is available to the user. So, in order to differentiate, the transmission from each user is "spread" or coded using an unique code given to individual user. At the receiving end, the spread information is decoded.

Sunday, September 13, 2009

ALL U WANTED TO KNOW ABT TATA DOCOMO(MOBILE SERVICE PROVIDER)

TATA TELE SERVICES LAUNCHED TATA DOCOMO A GSM SERVICE IN 9 states of INDIA.
IT HAS BECOME QUITE FAMOUS FOR its 1sec billing.TATA DOCOMO brings you " Pay for What You Use".
ANOTHER FABULOUS OFFER ON SMS IS ,THEY CHARGE YOU ONLY FOR THE FIRST 3 sms's ,further 100 sms's are free per day i.e YOU GET 3090 local SMS's in just 54 Rs.
Evn the STD rates are same i.e 1ps/sec upto 6hrs per month.Thereafter the rate is 2ps per sec which comes out to be Rs 1.20/min.
MORE ABOUT DOCOMO:
NTT DoCoMo, Inc. began as NTT Mobile Communications Network, Inc. in 1991. Formed as a subsidiary of the Nippon Telegraph and Telephone (NTT), Japan’s former monopoly landline local and long distance company, NTT Mobile Communications took over the operations for NTT’s wireless divisions. The company provided paging, car, in-flight, and later, mobile phone services.
The DoCoMo nickname, an acronym for "Do Communications over the Mobile Network", was quickly adopted. Growing from 1 million analog mobile users in 1992 to over 27 million users (combined mobile services) by 2000, DoCoMo continually set the market trends in mobile communications.
In 1993, digital mobile service was introduced using PDC (personal digital cellular). By 1994, the cellular market explosion took off with customers able to buy instead of rent mobile phones. PHS (personal handyphone services) soon arrived and DoCoMo found itself competing with parent company, NTT (also offering PHS). By 1996, DoCoMo had 8 million subscribers and in the same year introduced satellite-based mobile phones to service customers in remote areas beyond cell site territories, such as on ships and in the mountains.
1997 proved to be a critical year for DoCoMo. With success in its back pocket, DoCoMo and its parent company NTT believed all was well. However, Japan’s Fair Trade Commission ordered NTT to cut its 95% ownership of DoCoMo in the wake of financial crises in the area. The following year marked NTT DoCoMo’s IPO as the largest in the world at more that $18 billion, effectively reducing NTT ownership to 67%.
In 1999, DoCoMo took over the poorly performing PHS service from NTT. Revamping the service to target specific audiences, DoCoMo successfully resurrected the PHS market. In April of 1999, DoCoMo launched i-mode, the packetized, continuously connected wireless data service that has become the flagship product for the company.
By early 2000, DoCoMo had 27.1 million of the 49 million mobile subscribers in Japan. In March 2000, an analyst counted an average of 40 million daily page views at NTT DoCoMo vs. 70 million daily page views for Yahoo! Japan. At one point, the company was so overwhelmed with demand that it had to temporarily shut down its services.
The company is also immensely profitable. In the fiscal year ended March 31 2001, the company posted a record profit of $3 billion on revenues of $45 billion. This represented a 26% increase in revenues and a 45% increase in profit from the previous year. NTT DoCoMo’s market capitilization hovers around $335 billion.
DoCoMo’s success could be attributed to a combination of factors, but savvy marketing and strong leadership were two of the driving factors.