How does your mobile phone work? | ICT #1

For most of us, a mobile phone is a part of our lives, but I am sure your curious minds have always been struck by such questions as to how a mobile phone makes a call, and why there are different generations of mobile communications. Let’s explore the technology behind mobile communications.
Be a Learn Engineering supporter or contributor : / @lesics
instagram : / sabinzmathew
Twitter : / sabinsmathew
Telegram : t.me/sabinmathew

[@hamstersmash]

In all seriousness, this is amazing, to think how quick how it takes to process your communication, not to mention how many people it caters for, actually amazing and something we take for granted

[@GuidetteExpert]

Yea it seems like magic to have the ability to speak to someone in another continent.

[@rji5377]

All at the speed of light

[@nabawi7]

@@rji5377 thanks to fibre optic cables laid underground and under sea/ocean which literally use light to transmit data. Without fibre optic technology, data transmission of any kind wouldnt be this seamless and quick.

[@valentinestagno1806]

If only cell users knew what us tower climbers do to provide you with your cell phones

[@vitaminprotein862]

@@valentinestagno1806 Don't worry, robots will replace you soon.

[@abig0007]

Learning is not hard; it is just our damn schools which makes it hard to understand. Thank you for the amazing demonstration

[@Squishy743]

In school it's not about learning, it's about complexing simple things and act like this is a hard topic. For example we try to learn a 3 axis geometry shape on a 2 axis notebook.

[@tryit3407]

👍

[@jessieleigh89]

You just weren’t ready to learn it at that time

[@sachinfulsunge9977]

@@jessieleigh89 yep I feel the same way

[@yadukaladharan3545]

You said it!

[@ghostveiwer4649]

How on earth KZbin couldn't recommend such a video 😢 i feel I'm too late for such an info

[@untakble]

i am even more late

[@lokeshwaranm244]

@@untakble same

[@AtulGunjal]

Because you just watching sexy videos instead of like this useful informative videos😂

[@kenzo2909]

@@untakble same

[@jesterfield1]

Never to late to learn something new :-)

[@zendog57]

I retired from a phone company and this is very high level, but still one of the best explanations I've ever seen. Good job!

[@MalcolmThe5th]

I know I'm three years late on this but maybe your background can help (I assume the 2,900 comments will prevent this from being seen by the poster). The initial journey starts with the caller talking, and explains the path that the sound travels. Later in the video though, once this signal hits the home MSC, it seems like the phone call wasn't yet made and the MSC is first trying to find out details about the person being called. I'm assuming that the sound generally follows the same path as the dial, but I'm still curious if things are a bit more streamlined once the connection is established, or if the sounds still need to go through all the same hoops that the dial goes through.

[@BranchEducation]

Awesome job!! You did a great job at explaining so many rather complex concepts! I really liked the details about the MSCs and hexagonal cells. Keep up the great work.

[@anoopgupta9596]

Your video's are also knowledgable

[@juliandominguez4308]

It's still stupid. In my free time, I've drawn dozens of models of how phones communicate. This is nowhere near what I expected. After all of this research in technology, this is what they come up with? I hope that one day I would make this better...

[@HowToPedia]

Quick typing tips and tricks in MS Word | MS Word Typing Tutorial | Channel Name: HowToPedia Tutorials

[@rgujjar8997]

@@abbasramees4238 dfhadj

[@leehawk7068]

Very interesting video tho kinda basic as a few parts of the system are missing With regards to the MSC they are becoming outdated now thanks to fiber being rolled out pretty much everywhere But let's say within the 3G days and let's just stick to one network only for now the system consists of tower MSC a sub system and central system The sub system is generally what does most of the work and it's where multiple MSCs are linked and generally where customers who are logged onto the network is stored The MSC controls the BTS towers several of them in a given area and the MSC is responsible for dealing with the handover between towers within its area of responsibility and the MSC updates a database at the Sub system so the system knows where your phone is at all times The sub system as mentioned is where all MSCs link to usually a sub system is within a large city somewhere and usually within a network there is multiple subsystems that are linked before they are linked to a central system usually the networks head office in most cases sub systems double up as data centers as well But the sub system is responsible for handing over calls to another MSC within the sub systems area of responsibility or route it to another sub system As for data as mentioned in the video sensitive data such as customer name address and subscription are NOT stored at MSC or Sub system it's only stored on Central Only data that is stored is usually on sub system and MSC some networks can even store it at the tower but the main database is at sun system and this data consists of mobile number and the SIM cards for example sake serial number and also it notes the phones IMEI these details are held so the system knows where each phone is logged on to the network so it knows where to send texts and calls or if you are a criminal police can find you hehe and it record's IMEI mostly for blocking it from the network should your phone gets stolen To make a call to another mobile network or landline then the sub system will route the call to that network and make connections if international calling it is usually routed to central before pipping out to whatever line required But that's olden days tech with Fiber it's cheaper and faster to cut out the MSC networks started to link the towers directly to the Sub system and sub system usually becomes a data center also again to save running costs My mobile network I know where their sub system is where all the MSCs are linked I got a tour of the place bloody huge building one corner of the building outside has a huge tower with all the microwave transceivers that linked all the MSCs now obsolete

[@djl3009]

Remember learning this 15 years ago as part of an MSc in Telecommunications :) Cell towers are also called base stations and the professor (lovely gentleman) who taught this course pronounced it base-is-station ... in a 90 min lecture that is a lot of base-is-stations -- and thanks to that I never forgot the lecture ...brings back fond memories :)

[@RakeshRoshan295]

Lets spend a minute to respect and appreciate the people who have done tremendous amount of work to provide such a miraculous technology..🙏🏻🙏🏻🙏🏻👏🏻👏🏻👏🏻

[@eliphasmutwiri9623]

You are representing Overthinkers Association 👍

[@seang81]

Right?! How did they even conceive this idea.

[@lox_5017]

@@seang81 This explains why this technology is making people stupid and lazy!

[@upstarwholesale]

I thought my phone bill is expensive and after watching this now I feel like I don't pay much.

[@galaxyspaceg.s]

kzbin.info/www/bejne/ppTTaZWmm62md8k

[@gi295]

Well they do have the benefit of scale. Basically everyone has a phone and in the US there are only like 4 major providers. They have a ton of money to spend on infrastructure and a very secure and stable revenue stream

[@BiztosAngol]

This is amazing. We take this for granted but look how complicated it is. This is miracle to me.

[@KingTriton1837]

Damn. This was really informative! These kids today could probably pass a college exam on KZbin rather than using all those expensive ass books!

[@princesaini5706]

Brother these were also taken from books or any researches you should say the ass schools and colleges 🤘🤘

[@sthandiwe7825]

This is just basics, there is a lot of theory behind signals, you can't pass any exams with the vedeo. It's a great vedeo though.

[@seandafny]

Not an engineering exam. U can still get the books for free tho so ur point still stands. The only thing i can ssy schools sre good for is recommending which books to read out of the millions that are available

[@bluesteel1]

@@sthandiwe7825 True ... but university prescribed textbooks are still one of the worst ways to learn a concept

[@kuji9666]

@@sthandiwe7825 u can find a lot of videos about signals and modulations on ytb to

[@ryanjohnson9654]

This video explained better than my bachelor’s degree in the IT.... honestly, after the graduation, I was still very clueless about all this information traveling functionality but this video explained everything for me

[@puppergump4117]

You need a refund lol

[@anmperez00]

Crazy that most of us never stop to think about or try learning how phones function yet we spend the majority of our time using it. Fascinating & somewhat terrifying at the same time… also the dude driving off in the motorcycle made me chuckle 😂

[@MultiPtest]

you missed out the part where NSA intercepts the call.

[@JClover2]

Hahhahaha

[@ibrahimalfatih6059]

😂😂😂💀

[@aijazalikhoso5231]

How does they interrupt?

[@GurleenBatra-]

Why are u even watching this if u know everything😂

[@mosinkhan666]

@@GurleenBatra- I found out today angel of heaven also plays KZbin

[@TrionityIr]

Amazing that all this happens in a second.

[@chinmoyviswas]

Because electromagnetic waves speed in air is approximately 0.3 million kilometers per second

[@piyushjaininventor]

not in a seconds, microseconds

[@poojabonda7593]

Not in seconds ...... Within nano seconds

[@aaronarnold714]

@@poojabonda7593 not in nano seconds..... in Picoseconds

[@vedakumar8]

Yeah cuz electromagnetic waves matter..

[@Yuge428]

This whole thing is crazy when you think about it. The processing and transmission with so little lag is just crazy. Nothing short of magic

[@venkatkandhari5275]

I agree.... In schools, and online we had tons of lengthy pages to learn these technologies, spent so much of time but still confuses and hard to understand. This video is awesome, It explained the mobile technology so beautifully

[@prateekverma294]

Finally! it seems like, the importance of engineering studies reflects on new era of our favorite smartphone communication😃

[@HarshRajAlwaysfree]

No engineers will still be rickshaw pullers 😂😂

[@adityagarg2544]

@@HarshRajAlwaysfree yah unskilled engineers like u

[@HarshRajAlwaysfree]

@@adityagarg2544 no u

[@adityagarg2544]

@@HarshRajAlwaysfree we will se to that..

[@HarshRajAlwaysfree]

@@adityagarg2544 ofcourse

[@americamtheantitankie4843]

1:40 "electromagnetic waves would not carry on forever due to the earths curved structure" *flat earthers heads explode*

[@WolfangStudios73]

* laughs in HF Ionospheric Reflection *

[@xandercage4994]

Flat Brian

[@UkrainianBazooka]

@@WolfangStudios73 blows flat earthers minds with am radio!

[@manualLaborer]

Do they believe in electromagnetism?

[@k-osmonaut8807]

@NitroLPR9 bruh

[@easy_hai_bhai.]

Why I find this channel too late 😭 .. it's deserve million of subscribers ..the way he explained all things with examples ..man I am your big fan 🙏....

[@kavitamishra7028]

We must thank such a person who has made this animation Thanks bro 😀

[@indianathe3rd742]

Ig

[@sam08g16]

Everytime something is converted into 1s and 0s, or vice versa, my brain hurts trying to imagine how quickly this happens and how accurate it is, especially when it comes to really complex stuff. Then to think currently there are tens of billions of transistors in a single IC... holy sh*t. The engineers behind these are the true geniuses of the world.

[@Eugenepanels]

dam you learn more on a youtube video then these outdated school books lol

[@AwaisKhan-mh6cd]

ikr and damnnn 69 likes im not gonna like ur comment

[@AwaisKhan-mh6cd]

@@Eugenepanels lol its 74 😂

[@jesusortega61]

KZbin is power 😈

[@fenosoaramanoelina7315]

yes ,easy because it is very basic , for low level of understanding.

[@richardfeynman556]

Hell YEAH!!!!!

[@minecraftkid3737]

I first thought the video was going to be bad because of the bad animation, but this is really the best and most detailed video I can find on the subject.

[@shadabmahboob4702]

This is one of the best explanations on this topic I have ever encountered. Thank you for this!

[@divyanshubhandari2472]

First time ever i found a channel on which i can really learn things. The real engineering. How ever concepts are very clear but not at it's base for which books are required. But you guys are really good at it. Keep it up guys. I'm eagerly waiting for other videos as I'm gonna download all of the videos with in 2-3 days. Thanks for your efforts.

[@dasarathyadav370]

Bhandari ji from nepal perhaps

[@peacelove9716]

HONESTY

[@BobMcCoy]

*That woman at the beginning scared me*

[@williamgajda6665]

_Bob McCoy you find a chick with a bad comb over scary?...yeah, me too...

[@MMHA963]

Hey! Don't talk about Emma like that!!

[@billigerfusel]

That thing... It scares me.

[@GAMEOVER-yy6zj]

She looks like a character from one of the adult games on patreon.

[@rodigoduterte9192]

She has no soul and that scares me

[@ThePrinceOfSpace413]

I came here to understand how my voice goes into the phone and out of someone else's phone. And I learned that. But I also got to learn all of the interconnectedness of that, and then another question of what the generations were. Thank you for this video it was very informative and I feel that I will be a wiser phone user in the future

[@counter5124]

He explains it better than all of my teachers. not even kidding. You got yourself a new subscriber

[@arieln8203]

we enjoy these advancements because of those persons, engineers who has a BRILLIANT MIND, salute to them

[@freddiecapillan8689]

The brains behind converting voice to 1 and 0 then convert to sound wave is really amazing...

[@abhijitmoholakar8217]

What about those who invented zero

[@freddiecapillan8689]

@@abhijitmoholakar8217they are amazing and funny.

[@justanotherredneckwithacom1315]

Freddie Capillan i too find technology like the internet amazing, a web of cables that transfers shitloads of data constantlu around the world.

[@meows_and_woof]

amzing and funny it’s nothing to do with zero, the binary concept is about on/off state and the combinations of those states which carry the information. We just found the way to code and de-code the information that way. There is nothing to do with actual numbers

[@richardhemingway6084]

The same conversion of 1 and 0 to analogue and back is also how CDs DVDs and ipods work. It is indeed incredible and is a whole subject in itself.

[@GauravSingh-hh8bw]

I think the explanation is absolutely great but it takes more than a video to understand something complex so that I can close to explain things as flawlessly as you do.

[@GururajBN]

I had vaguely known about how a cellular phone technology works. This video shed lights in the dark corners. Many thanks for enlightening me.

[@_aidid]

I have been looking for video on this topic for many years, now I have got it. Thanks.

[@abbas158]

Check how long it takes to explain this & yet in reality all this happens in a blink of an eye without even noticing 🤣🤣🤣

[@VivekYadav-ds8oz]

Kinda like thinking a thought. It takes a few microseconds to process a thought, but a good amount of time to justify it and explain the reasoning behind it (like for example solving a physics problem).

[@SOFTWAREMASTER]

@@VivekYadav-ds8oz For me Solving a Physics problem will take an hour or so...😂😂😂😂

[@VivekYadav-ds8oz]

@@SOFTWAREMASTER Depends on what kinda problem you're solving.. I'd easily eat up whole day on a single problem for some problems and brush some off as too "low-class" (or repetitive) for me to even consider solving. So yeah it depends :)

[@siragali7786]

FDMA Or TDMA is very important

[@abelmobile]

Well this technology took 50-100 years to perfect it so...

[@shamsrazk7976]

Thank you for such a specific and elaborate explanation. This is the only video that answered all my questions in one!

[@panashifzco3311]

This is so cool.i did'nt knew any of it till this time.Great demonstration.

[@redbaron5888]

R.I.P. all those genuines who eased our lives with their inventions. These are just so masteric, magical inventions

[@himanimehta5]

too good! never understood all these things during my college exam days!

[@ryanfrizzell736]

It’s great to use my mobile phone to learn how mobile phones work.

[@Angel13129]

man searching this for like 2 years thanks for making video on this

[@mrmatias2618]

A lot of algorithms. LOL 😂. Thanks man. Indeed you’re gifted teacher 👨‍🏫

[@Lesics]

Are you ready to support Learn Engineering today? www.patreon.com/LearnEngineering . We will be truly thankful :)

[@civilengineerrajkumar7428]

Nice Information

[@civilengineerrajkumar7428]

@@NotCocoyuyop what?

[@samirghosh365]

@@civilengineerrajkumar7428 q

[@user-bo4bb4od4q]

kzbin.info/door/nUcCNBdVTPJveZUaGBAf0w

[@endriasredhay2243]

@@civilengineerrajkumar7428 aaa

[@growupwithsatz1375]

This is the way I like to learn about the technology .....we can't see the signal flow ,only we can imagine but the presentation like this bring the real flow in front of us.thanks

[@ArJun-mi1sh]

Clean and clear explanation... Well prepared Good job

[@MegaFaisalpk]

The best KZbin channel. I hope that you'll gain high views

[@doggy007ooo]

this was a quick and efficient revision for my 8th semester subject Mobile computing. Working with routers and switches professionally as a Network Engineer had me losing my grip on the subject. Thanks for the video!

[@boltechtraininginstitute]

Awesome Job! The ease at which you simplified complex concept is commendable.

[@kamkgupta1973]

This is wonderful way of teaching & taking a lecture in our polytechnic college. Thanks

Superb job man. These are very good for understanding concepts in my physics classes. Keep up the good work.

[@user-uq6qz4zs1j]

Yes.Its true ❤

[@charishashyamsukha8809]

omg!!!!! your explanation can be understood by a toddler also. thanks a ton!!!continue making many more such informative videos................I had taken up a course on Coursera but cldnt really understand a few things but these series make things so cool n easy

[@Hannah-nh5gf]

I'm learning this during this semester and KZbin decided to recommend it😮Awesome!

[@stennetmang]

This day we learn more from internet then in school, thanks for the knowledge

[@mumair3123]

What I did in my 2nd year (12th)standard. I completely made a leave from college and focused on youtube.. And I got 94 percent with full practical knowledge.. I recommend you to study only on youtube guys 🙏😋😘

[@DraNox33]

Feeling bad for birds 😔😔😔

[@itjobpreparation3123]

WoW!!!! What a way to present it!!! Maybe this this one of the best educational youtube video I have ever seen. Thank you.

[@lighto2240]

This video was really helpful please do a longer more detailed version of it explaining core and access networks and do separate videos for every generation of the five generations, your work is very appreciated

[@anthonydempsey7693]

They used to tell us it was satellites out in space? When there is no such thing it's all lies.

[@terrynitro5330]

A great video on cellular radio. I have questions about necessary equipment to provide additional spectrum for increased service demand. I'm curious about how cell companies can add equipment so seemingly easily in such short order. I've been reading about how AT&T and T-Mobile are going to be using spectrum loaned by other spectrum holders - so that demand for data precipitated by Coronavirus concerns can be met. How do they do this so rapidly?

[@arashkabuli0012]

All of your explaination in this Clip has been illustrated really comprehensive, thank you .

[@Shannon1970ful]

Pretty intense stuff. Hard to believe humans were capable of such technical knowledge and understanding ...

[@cubedrama-1558]

*_🎄🎄The splendor of the projects is happy and waiting for more🎅🎅_*

[@bradowen8862]

I thought, fiber optic cables are almost obsolete nowadays and satellites play a big role in wireless communication. This video is very informative!!!

[@dimirossman870]

i am an IT student this video was very helpful for my telecommunications course, please keep up the excellent good work

[@abbasaliunwala1803]

But it works so fast I mean the person on the other end of the call hears our voice in Real time wherever in the world he maybe, this is just mind blowing 🤯

[@sw33tkiss94]

i like this concepts of explaining, THANK YOU!

[@vanshitagoel6429]

Best teacher ever ...😍😍.. i had studied mobile computing but never understood what is cellular technology , msc n all. But now everything is clear ..

[@Praveen.Poonia01]

What are you doing these days

[@TheDareMaximus]

Finished Telecommunications highschool degree 2 years ago and this video basically sums up few lectures we had in last year There is much more details that this video didnt cover, such as how A/D D/A coversion works, different types of antennas, levels of satellite transfers, microphone principe of working, why u cant make call in basement, why towers 🗼 are always on high attitude eg. hill but that's all for another video.. this video seems complex but it covered the basics Good animations!👍

[@yerxiong123]

It amazes me that someone woke up and had an idea

[@kanhavintage9277]

I think that is the perfect way to explain some difficult topic 😉 I love it 😍

[@NK-wf1bu]

very easily explained...thnk u soo much guys....keep it up👍👍👍👍👍

[@ethioertreatube3881]

videos like this are so helpful to easily understand and have memorable things with what is intentionally delivered

[@jatomarkbimi3606]

Learned more than I ever did from this video than I did from my 4 years in school

[@mfaraday4044]

Colleges only providing theories but you creating interest Thank you keep going. Currently i am not in condition to help your channel. But dont worry , I will be soon

[@sthandiwe7825]

@Kevin Prima All of this won't be possible without the college you are criticizing.

[@emilianodelavega2803]

3:10 oh hey just here calling from the Barcelona Pavilion

[@smitasahay6890]

Absolutely superb explaination sir..wish all our teachers be like u,who so effortlessly explains a complex topic

[@puppergump4117]

I don't think it's too complex. But I still have no clue how EM waves behave, if they're at all different from light/radiation, or how they're magically manipulated to have certain frequencies or amplitudes. But past that, it seems all that's left is optimization.

[@omkar30199]

May god bless u and your family for such a lovely contribution to the world. Easy to understand animation

[@BharathKumar-yx9bf]

Content is really good and well explained, May I know the Software used for animations , it will be reallyyyy helpful for my students too. Thanks

[@arbaj13]

Thanks Learn engineering Pls also explain optical fiber technology and satellite internet

[@pedrojello8983]

there is no satellite lol

[@richardhemingway6084]

Satellites were missed out for clarity. They are only involved for long distances, around the world, or across a continent.

[@rishabhpandey1127]

Wow..I think science is magic..like I want to talk to someone ,I just have to touch that person's number and I can talk to them.This video was made somewhere else..but here I'm on my bed in India watching this amazing video.These things just blow my mind ❤️❤️I love science because it doesn't devide us on any basis except energy, frequency and vibration

[@user-bl7de6gw2z]

your video is good and easy to understand. and that nokia brought past memories

[@PradeepKumarIIITD]

you guys are doing a great job , by making amazing animation videos

[@praful4383]

Wow i like ur first video of telecommunication.. Now make videos on this topics :- 1) how microprocessor works? 2) how memory stores data? 3) wired n wireless communication 4) how internet works? 5) etc.........

[@zamran2006]

What the theory of method they used for #PicoSecond

[@sabitanandiroy5673]

@@zamran2006 Buismessmsmfivr

[@tonyrony1943]

as a user of magnetic frequency based cell phone i was curious to know this easily but complex connecting of cellular system process.thanks for your good information.

[@sumanchakrabarti3548]

i am 13 years old and I really learnt a lot from this video!! Vital question: How large are the hexagonal cell areas? Are all of them of the same size? How many hexagonal cell areas like that are there all over the world? Most vital question: How will Smart homes look and work?

[@kmeenu]

That was very informative.thank you so much!

[@kalpak4876]

Something inside me told me to search “what is a phone” and watch the third video, and even to read the 5th comment. Lmao😂

[@truptikulkarni9503]

Best explanation

[@Jr_Scientist]

This video provides a great overview of how our mobile phones work, from the transmission and reception of signals to the role of cell towers and the Internet. The presenter does an excellent job of breaking down the technical jargon into easy-to-understand concepts, making it accessible for viewers with varying levels of technical knowledge. The video also touches on the different generations of mobile networks and their evolution over time. Overall, this is a very informative and educational video for anyone curious about the technology behind their mobile phones. It definitely left me with a greater appreciation for the engineering and science that goes into making these devices work!

[@bristibaishya6581]

Simple explanation ; great understanding

[@M-Aatif]

A great video from all angles, Can anybody tell me please, what is the tool(s) / language etc used for graphics in this video? Thank You

[@dr.abdelmounaimchetoui]

Your videos are just wonderful. I really do love the efforts you made to give us such valuable information. Keep doing the good work. Amazing

[@batoolamna4434]

Ya u r right..........this video is wonderful

[@AR-gm4yn]

Very Useful ❤️ Thanks a lot 🤝

[@shanthamurthy1234]

Beautifully explained, Thanks a lot.

[@lkdsamte4910]

This video is sure to cross 1M views easily.

[@udhaara]

Wow, what a great video, simple and very clear technical explanation. Thanks for this video.

[@hanifbashir745]

U hv thought us which v nvr knew....million thanks 😊

[@SawyerKnight]

its interesting to note that the Electro-magnetic waves are non-directional, meaning its sent out in a dome rather then directly towards your phone as shown in the animation. that also means that you are being bombarded by these frequencies constantly whether you are on your phone or not.

[@Randomguy-wd5lw]

electromagnetic waves are light so nothing really special about them.

[@mridularul1]

@@Randomguy-wd5lw You can use the same argument for xrays and say nothing special about them but its knows that too much exposure to xray will damage living tissue and dna. They're "electromagnetic waves" too.

[@Randomguy-wd5lw]

@@mridularul1 yes but the energy level in a X-rays are much more powerful, and due to its frequency all its energy is concentrated in a small area, allowing it to ionised molecule. while the Electromagnetic waves created by you phone are micro waves and are much less powerful and it frequency much bigger, so it has ''less punch''. it cannot damage anything, all it energy if absorbed will be in the form of heat.

[@essembee6310]

Yes, I believe you make an important point. It is always the foolish who agree with the master's of new technology in saying the harm is negligible or non-existent. After time passes, it is realized that the technology to which society has become dependent has also introduced a new set of ills for the next generation to overcome. And so we look to science for new technology to save us from the harm brought forth from the "harmless" old technology. And so it will be, until all that is done, is undone.

[@rachmatzulfiqar]

when first i use mobile data , i started with EDGE (2g) and when 3g arrive , i thought the technology is stupid because it halved the battery life of the phone, but when i purchase one with 3G capabilities, i never looked back. when 4G became popular, i judge it to be unnecessary, because 3G(HSPA+) is already have a fast speed, and then i upgrade my phone with the one that have 4G+ , it blews my tiny mind that when it comes to technology, there's never be ""ënough""

[@gentile88]

@Kevin Prima My dad first time for using mode old mobile 1g and 2g, if can you will be smash phone. 📱🔪📱🔪📱🔪

[@AnkitSingh-ry2zc]

This is the first video I watched from your channel and subscribed it..

[@sandesh9240]

All these transmissions occurs in seconds time scale when one makes a call ....really great.