1. What is Bluetooth?
Bluetooth in its most basic form is cable replacement. Where cables now connect many devices, a wireless Bluetooth connection will provide low-cost wireless communications and networking between PCs mobile phones and other devices. This will enable untethered, wireless connectivity, to the Internet and other devices, anytime, anywhere. Bluetooth is based on a global radio-frequency (RF) standard, which operates on the 2.4 GHz ISM band, providing license-free operation in the United States, most of Europe and Japan.
2. Are my wireless calls secure?
Bluetooth technology is an important element in the wireless Internet scheme because it improves seamless Internet connectivity and information delivery.
Bluetooth wireless technology will virtually eliminate the need for business travellers to purchase or carry numerous proprietary cables by enabling one-to-one and one-to-many connections among PCs, mobile phones and other devices, such as printers and display monitors.
Bluetooth wireless technology is designed to support a data rate that provides more than enough bandwidth for the designated usage models.
Bluetooth wireless technology has raw data rate of up to 1Mbps.
A device with Bluetooth wireless technology will have the capability of exchanging information within a 10-meter (~30 feet) radius, though different devices will support variant ranges based on intended usage requirements.
No wireless service is perfectly secure, but the wireless industry has made significant investments to thwart eavesdroppers and phone-number thieves. Digital cellular and PCS (Personal Communications Services) transmissions require sophisticated equipment in order to listen in on calls. CDMA (Code Division Multiple Access) technology is the most secure. CDMA transmission has been used by the military for secure phone calls. Analog phone signals, on the other hand, can be monitored by anyone with a radio scanner.
3. How do I pick a rate plan?
Depending on the market, each carrier may offer 20 or more plan choices to prospective customers. Plans vary in the number of minutes bundled, and the geography of the local calling area. Generally speaking, the smaller the coverage area, the more minutes you'll receive for a given monthly fee. We suggest you think about how many minutes you'll use each month in your home city, in your region of the country and then in the rest of the country. If you'll use your phone regularly for more than one hour a month in parts of the country outside your local or regional calling area, you'll likely benefit from a flat-rate plan that will not charge you roaming in those regional or national locations. If you mostly use the phone around town, we suggest a plan that includes roughly as many minutes as you think you'll use. 4. Do I have to sign a contract?
Some carriers require you to sign a contract, some don't. Often you'll get a less expensive rate if you do sign a contract. A contract assures the service provider that you'll be a longer-term customer and thus a less expensive rate may be available.
I see a plan that works for me, but I already have a cell phone. Can I purchase only the rate plan?
You may be able to purchase a rate plan only, but only if the handset you have uses a technology compatible with the carrier you select. Even when this is the case, some phones are "locked" by the manufacturer so that they only work on the network of the carrier who purchased the phone for resale to its customers. With advances in quality and size of the phones, and their relatively low price, you'll probably be better off getting a new phone with your service plan. 5. Can I buy just a phone?
In some instances, you may be able to purchase the phone without a service plan, but you'll be charged the full price for the phone. You should call for details regarding your particular phone-only selection. 6. How does prepaid service differ from traditional billed service?
This service allows you to buy minutes in advance of use. It is a good solution for those who want to budget their phone usage, or for customers who may have credit issues or do not feel comfortable providing information for a carrier credit check. 7. What is a system access fee?
A System Access Fee (SAF) is monthly fee charged to help cover the costs associated with the ongoing operation, maintenance and upgrading of the wireless network. The fee is not required by nor collected for the federal government or any of its agencies. 7. What is an early cancellation fee?
An Early Cancellation Fee (ECF) applies if, for any reason, your service is terminated prior to the end of the service agreement. It applies to each line in the plan that is terminated. 8. What is a hands free kit?
With a Hands-Free Kit, you can use your cell phone in your car without holding the handset. An external speaker and microphone provide you with, in effect, a speakerphone in your vehicle. Hands-Free Kits are available as mounted units, generally used with mobile units, and as portable head-set styles that can be used with hand-held units. Mounted kits are connected to the vehicle's power supply; portable kits generally use a cigarette lighter adaptor. Recent legislation has banned the use of cellular phones while driving due to 'Driver Distraction'. In some areas where this law is in place, a hands-free kit is acceptable. 9. Can I surf the Internet from my phone?
Wireless Internet access has been the buzz word throughout the Wireless Industry for years, unfortunately there are a few pitfalls along the way. The first problem is the size of the screen on most phones. In order to view any substantial amount of information it would be necessary to scroll constantly. The next issue is the bandwidth available from the network providers themselves. There is talk of 156kbs coming but at the moment it is not reality. WAP was promoted as the answer for wireless data but it has been plagued with problems and is not likely to survive. Survival of the Wireless Internet will be determined by the user wanting the applications that are useful, not just what is available. Screen size, bandwidth and speed will all make the content easier to access but only if it is worthwhile. 10. What is roaming?
Roaming is the term used when you travel outside of your home area. Each carrier has different roaming options. Please look at the price plan comparison pages to see which options the carriers in your region offer. 11. My battery doesn't hold a charge anymore. Why not?
The most common types of batteries for cellular phones are listed below, with their various advantages and disadvantages. Regardless of the technology, most handheld and portable units will accept a "standard" or "extended" battery, which will add to the length of time the battery will power the unit.
- NiCad - NICKEL CADMIUM:- NiCad batteries are known for the "memory effect" that they develop if repeatedly charged without being fully discharged. These batteries also self-discharge if left unused, losing 10% of their power the first 24 hours, then 1% to 2% a day thereafter. They perform best if used regularly. Chargers for NiCad batteries should have circuitry that prevents overcharging, which ruins the battery. These batteries may be considered environmentally harmful, and should be disposed of properly. The recommended charging process is a constant charge, as when sitting in a base unit or plugged into the lighter socket in a car.
- NiMH - NICKEL METAL HYDRIDE:- This technology can provide as much as 30% more capacity than a NiCad battery of the same size. These batteries contain no toxins, and are consequently more environmentally friendly than NiCad. Unlike NiCad, deep discharging contributes to a decline in the life of the battery, as does constant over-charging. In general, NiMH technology is sensitive to overcharging These batteries should also always be rapid charged. The charger should be designed to monitor the charging process, as well as the heat of the battery.
- Li-Ion - LITHIUM ION:- Lithium batteries deliver the best performance with lighter weight than the nickel-based batteries listed above. They develop no memory effect, and are non-toxic; but they are more expensive. Charging requires a controlled, constant voltage process, and the useful life of these batteries can be reduced up to 60% if overcharged. Use only chargers that are recommended or designed for Li-Ion batteries. Chargers made only for the nickel-based batteries should never be used to charge lithium batteries.
It is important to use the correct charger for your battery. Chargers are usually referred to as "overnight" or "rapid". Overnight chargers will charge a battery in eight to ten hours. They provide a low charge rate, and often lack the safety features of preventing overcharging due to the fact that batteries can better withstand low charge current on a continuous basis. Rapid chargers, as the name implies, recharge batteries more quickly. The charge isn't continuous; rather, it's reduced as the battery reaches full charge. There are three types of chargers: Vehicle cigarette lighter plug-ins, desktop chargers made for indoor use and small travel chargers that simply plug in to an electrical outlet.
- LITHIUM ION POLYMER:- This new technology is the longest lasting and most expensive battery type available today. Extremely light and compact batteries.
- LEAD ACID:- Used commonly with transportable cellular phones, the higher power output of Lead Acid batteries is reflected in their size and weight. Lead Acid batteries should be stored fully charged; otherwise the chemical components will deteriorate rapidly. Slow charging is recommended. These batteries have the lowest number of charging cycles of all four types, and hence have a shorter life.