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Its different for mobile phones and fixed land lines.
For mobile phones, the phone transmits a signal to the nearest base station and cellular exchange. This calculates where the call has to be made. If distance is too long (international calls), then the cellular exchange sends an up signal to the satellite. The satellite then locates the other corresponding cellular exchange. It sends a down signal. This exchange then sends a signal to the base station nearest to the receiver mobile phone. The station then inter connects the two phones. Connection through satellite is maintained during whole conversation.
Process is similar for fixed phones except that there is no cellular exchange or base station. Sometimes optic fibres are used rather than satellites even for international calls. These fibres are hundreds of kilometers long and pass under the sea.
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What was used before voip?
Long distance telephone calls is used before VoIP.
What tariff would one expect to pay for a business telephone line?
A business telephone line has to keep in mind things such as conference calls, and especially the distance of each person who is in the conference calls.
How has the telephone service changed?
Telephone service started out by a home having to pay extra for long distance calls. Then cell service only allowed a certain amount of calls a month. Now, phone service has unlimited usage.
Who pays long distance charges on a forwarded call?
The owner of the telephone pays for long distance services. Each phone company charges a different amount for long distance calls.
What is offered at the website iTalkBB?
iTalkBB is a website that allows people to sign up for the iTalkBB telephone service. This telephone service allows customers in China to make long distance phone calls.
How can you get a telephone service that just allows collect calls?
if you mean that people may call you collect , but you cannnot make long distance - yes you can.
What are the types of telephone calls?
There are various types of telephone calls that can be made. Below I will list some of these types for you. Long Distance Calls Local Calls Three Way Calls Conference Calls Dial Around Calls Collect Calls Third Party Calls
How are undersea cables used in long distance calls?
Undersea fiber optic cables have largely replaced the old copper cables. They are used to carry data, including telephone calls, around the world.
Who to contact for 20 yr records of incoming telephone calls?
Well, the phone company doesn't keep track of who phones you unless it was a collect long distance call. You can only get records of the out-going calls.
What is a blue box commonly used for?
A blue box is an illegal electronics device, used to obtain free telephone calls. The device works by copying the signals from legitimate long-distance calls and switching the calls so that the user of the blue box obtained free calls.
High-speed Internet connections use an antenna on a house or business to communicate with a tower location via radio signals?
No, DSL uses the same telephone line you use to make calls.
How is refraction used in real life situation?
Fibre optic cables, which mean in broadband and sometimes long distance telephone calls (I think) hope this helps!
