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What did Signaling System 7 do for cell phones?
It enabled the elimination of charges related to "roaming" agreements between operators and special access codes that complicated the use of cellular phones
Avoiding International Roaming Charges with GSM Cell Phones?
If you are traveling internationally, you can take your GSM cell phones and avoid expensive international roaming charges by using a prepaid SIM card. Before leaving, call your cell phone carrier and inform them that you'll be traveling internationally and ask them for an unlock code. After unlocking the phone, you will be able to use your unlocked cell phone with any other carrier's SIM card. When you get to your destination, simply buy a prepaid SIM card and insert it into your device. You will be able to use your phone on your vacation without paying outrageous roaming fees.
What are the advantages of using a satellite phone?
Using a satellite phone has many advantages over cell phones. Cell phones require the use of a cell tower which are not available in remote areas. Satellite phones use satellites which are always available as long as you can see the sky.
What exactly are satellite phones?
Satellite phones are powerful portable phones which communicate directly with a satellite, eliminating the need for a cell tower. Satellite phones are extremely useful in areas that are desolate, like the desert or at sea where phone signals from towers will not reach.
What if radio didn't exist?
there would be no satellite, and with no satellite there would be no cellphones, and with no cell phones there would be no annoying at&t commercials.
Do satellite cell phones have service no matter where I am?
Satellite cell phones have much better reception quality than the standard cell phone. People who are usually in emergency situation ( fire fighters, army, etc) use these types of phones. A satellite phone would be a good thing to purchase if you are going on a fishing trip in a remote location although they are much more expensive than a standard cell phone.
How did the first cell phones become affordable?
It was through time and building of more cell towers. In 1984 when the first cell phones were sold to the public they were large, bulky, and calls were dropped or not completed at all. As time when on the size, and the cost went down. I had an early cell and only would use it if I had to because the charges were by the minute and roaming was really high. There were no perks or packages or internet. Another factor was the start of more cell phone companies selling phones. Yet, I would have thought that the prices today would be lower.
Do satellite phones work everywhere?
Yes, satellite phones do work everywhere. However, for best reception a satellite must be overhead. There is a signal monitor, just like on a regular cell phone to let you know your signal strength.
Want to know it is roaming from chennai to kodaikanal?
For my understanding this question seems to be about the cell phone usage. I presume the person was interested in knowing whether the same charges are applicable for the cell phone usage if he uses the cell phone in Kodaikanal. The answer is both the chennai and the Kodaikanal are the part of Tamilnadu cirlce. So if one purchased SIM Card in either chennai or in some other district of tamilnadu, he can roam around throughout tamilnadu. The charges are same everywhere. It is just the local circle roaming. So the charges are same as the local call charges. The roaming charges will not apply Thank You! Vasanth
What exactly are satellite phones and why are they so expensive What features do they have Do they operate similar to regular cell phones What's the deal I thought only the military used satellite phones. Does one buy a phone and then pay monthly for the ?
A satellite phone is like a cell phone except that instead of connecting calls through cell sites, it connects directly to a satellite. They are very expensive for several reasons, such as much lower production quantity compared to cell phones, and more expensive hardware. Civilians are allowed to own them and there are several different types of plans you can get for the phones, such as monthly, pay-per-minute and unlimited, with prices varying depending on the provider.
Do satellite phones make it easier for a person to track the phone owners wearabouts?
Most phones are capable of being tracked. Satellite phones bounce off the satellites so the location can also be pinpointed. It may not be as accurate as a regular cell phone but doable.
Plans for International Cell Phones ?
International cell phones come with plans that allow you to make and receive calls internationally without paying roaming charges. Individuals who frequently travel abroad benefit from the flexibility of international cell phone plans. Most major cell phone providers offer international cell phone plans on a contract basis. The prices and quality of service for cell phone plans vary widely, so it's important to research your options thoroughly before choosing a provider and signing a contract.
