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No it does not need to be connected to the internet, you just need mobile signal, not 3G for example.
VoIP is used to transmit a voice signal via the internet. If you need such capability (internet phone, for example) then VoIP is required.
Cause it sends out a signal that goes to a satellite very fast. Then it goes to where your connecting.(example...Your connecting to Google.The signal goes to the nearest Google headquarters.)
If you are downloading something from the internet, it does not affect the strength of the Wi-Fi signal or other internet signal, since that is solely based on the router's performance or modem's performance, but the speed at which it operates is greatly affected.
Anywhere there is a wifi signal you have the password for. 3G models can get internet anywhere their carrier's cell signal reaches.
The Signal - 2013 was released on: USA: 15 October 2013 (internet)
it does exactly what the title says it does! Routes you internet signal to anything that needs an internet connection
A Wireless signal (WIFI) A signal from a network is routed through a Router wireless or wired. The signal broadcasts throughout an area where another computer receives it thus enabiling access to the internet.
for laptop, it will automatically search for the signal and connect. for computer you will need to connect the wire the computer and to the router
If the signal is strong enough.
it has a built in antena
A wired router is able to spilt the Internet signal and send it down Internet cables or Ethernet cables. It is capable of sending the signal to many different computers.