When there is no cellphone signal, how does the “emergency calls only” function works?
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The phone companies have to let you use their service for emergency calls even if you are not their customer. So your t-mobile phone might not have connection to a t-mobile tower, but it can have connection to a verizon or at&t tower for this one purpose.
Because other providers’ signal is used if it is an emergency call.
Because other providers’ signal is used if it is an emergency call.
This is one of those things which has a simple answer and does not require a detailed “eli5” type response.
Either there is a signal, but you’re not allowed to use it unless it’s an emergency. Or there is no signal. You can’t have both.
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