General Physics (mobile phones)

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Discussion Overview

The discussion revolves around the functioning of mobile phone communication, specifically how calls are directed to particular phones despite the same signals reaching multiple devices. Participants explore the mechanisms behind mobile connectivity and identification.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant questions why a call reaches a specific mobile phone when all phones receive the same radiation, seeking clarification on the differentiation process.
  • Another participant explains that calls are directed through the nearest tower, which communicates with an automated switchboard to connect to the intended phone.
  • Speculation is presented that each phone has a unique identification number linked to its phone number, allowing the tower to identify and connect to the correct device.
  • A participant raises a question about why two phones in close proximity do not interfere with each other when one rings, suggesting a need for clarification on how identification works in this context.
  • It is noted that both phones connect to the nearest tower but are distinguished by their unique identifiers, preventing eavesdropping despite using the same frequency.
  • A participant expresses gratitude for the responses and indicates a desire for further interaction.
  • Another participant asks for clarification on the term "thread" and the procedure for asking questions on the forum.

Areas of Agreement / Disagreement

Participants generally agree on the concept of unique identifiers for mobile phones, but there is some uncertainty regarding the specifics of how calls are routed and how identification works in practice. The discussion remains exploratory without a definitive resolution.

Contextual Notes

Some assumptions about mobile communication systems are not fully explored, such as the technical details of how identification numbers are used in practice and the exact role of the switchboard in call routing.

Who May Find This Useful

This discussion may be of interest to individuals curious about mobile communication technology, those seeking to understand the mechanics behind phone calls, and participants looking to engage in technical discussions about telecommunications.

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Hi Here Is Gagan.can Anybody Answer My Question Given Below:
1.) Why When We Dial A Mobile No. It Accsess To A Particular Mobile Inspite Of The Fact That Radiations Reaching To All Mobiles Are Same.
In Short What Is That Thing That Actually Differentiate Various No.
 
Computer science news on Phys.org
re-title and move to one of the tech sub-forums imo...

You make a call, and that call broadcasts to the nearest tower. That tower directs your call through cable to an automated switchboard somewhere which sends it to the other phone. That much I'm pretty certain about.

Speculation: Each phone has a unique identification number which is attached to it's phone number. When that phone is on, it's in constant passive communication with the nearest tower. That tower transmits information to the switchboard saying something like "this phone is within my range; if you receive a call to this phone, please direct it through me".

I don't know if that last part is correct, but is seems reasonable. Hope it helped.
 
Hello I Actually Unable To Understand This That If Two Friends Are Sitting Together,if Mobile Of One Rings Why The Motherboard Of Other,according To You Should Not Link To Nearest Tower,please Reply
With Regards
 
Both phones link to the nearest tower, but they have different identification numbers(a phone number or a unique id linked to that phone number). When the tower links up with the phone, it probably uses that identifying number to make it's connection with only that one phone, so even though multiple phones are using the same frequency, they have unique identifiers that keep them from eavesdropping on each other.

EDIT: looks like most of my conjecture was right, but you can get a lot more info from wikipedia. Search wikipedia for "Mobile Phones", and look at the "Cellular Systems" subsection. That looks like it'll have everything you need.
 
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Most Humble Thanks To You Sir/madam.i Hope We Will Have Great Interaction In Future.
With Regards
 
One Last Question To Disturb You ,what Is Meaning By The Word "thread" You Are Using.its Mean Question Or Any Other Meaning.and Whats The Appropriate Procedure To Ask Question Through Physics Forum.
With Regards
 

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