Hey, I am Adnan Ghayas, and I started Commsbrief a few years ago to create a free online space where wireless technologies like mobile communications are explained properly in plain English. This RU-vid channel is an extension of commsbrief.com, and most videos here are relatively new.
I’ve been working in the telecommunications industry since 2003. I have spent most of my time in product management of market-leading products and services within large mobile operators, vendors and inter-related companies.
Everything you see on this channel is my personal view based on the experiences gained within the industry over the last two decades. Therefore, none of the content on this website represents my current or previous employers.
It’s illegal for any individuals to change the IMEI number in many countries including US, UK, Canada, Germany, France, Australia, India, Pakistan, South Africa and many others. It’s managed very strictly because it’s a very sensitive number. Only authorised personnel are able to track you. The exception is, of course, some countries where corrupt elements have access to this database. Now to address the problem you’re trying to solve: If you have a dual SIM phone, which is highly possible nowadays with eSIM, just use a different SIM compartment. Or change your phone.
Well many RU-vid videos saying that even using WiFi only without sim your device will transmit it's imei number. . Are you saying a WiFi only device cannot transmit it's imei number to the network it's using ?
@@frankryan782 An IMEI number is only transmitted when a cell phone connects or tries to connect to a mobile cellular network base station. That happens when a SIM card is inserted OR a phone with no SIM makes a call to emergency numbers like 911, 112, 999 etc. OR a phone with no SIM tries to search for a cellular network. The third one is very very unlikely and therefore if you have a phone with no SIM but a Wi Fi connection, it will only transmit IMEI if someone dials emergency numbers. In the UK for example, that means 999 and 112, and in the US, that means 911 and 112. So if you were to look for a general scenario (when you’re hopefully not dialling emergency numbers), the likelihood of IMEI being transmitted without a SIM would be close to negligible.
@@frankryan782 Yes. The the IMEI belongs to the SIM card slot in your phone even if it’s eSIM because the slot for that is inside your phone. The only thing SIM does is to establish the connection between the phone to the network using the SIM slot IMEI number. So as long as the phone is talking to the mobile network (using SIM), the same IMEI is communicated.
Sir i have iphone 12 max in general and about setting there is no option of carrier Lock and network provider its factory unlock phone there is 2 IMEI nmbrs fix and we are never use hotspot at iphone tell me plz
E stands for Edge, when you lose cell signal it will sometimes switch your phone to that which is a super slow connection. You won't be able to use any media or web programs until you get your LTE or 5G signal back but you can make calls to landlines. Sometimes you will get stuck using Edge service so there are two ways you can try that will return your regular cell service. 1 Airplane mode. Turning it on and waiting a few moments then turning it back off in most cases will search for the nearest cell tower. 2. Restart your phone. There are some instances when you live in a bad area for cell service that you cannot get rid of the E connection. You can use WiFi calling as a work around. The only other options would be to switch cell carriers such as if you are Tmobile you can try AT&T but in either cases if that doesn't work you can invest into a cellphone antenna which will boost your signal.
Thank you! I had no idea this is possible. I tend to work on the go and this has raised my internet speed (from android phone to my laptop) more than five times!
Sorry to hear that. If you have an active eSIM in it, i.e. it was working before you lost the phone, then unless someone deletes that SIM, it should work the same way because eSIM is just like a plastic SIM, it’s just that the SIM hardware is built into the phone and you use your QR code to program it to a certain network. IMEI number however is not dependent on the sim so even if someone removes the SIM the IMEI number can still be tracked. But, and it’s a big but, it’s up to the police and if they would make all this effort to track your phone, chase it and then find it for you. Best option is to contact your mobile operator and get their advice as soon as possible.
How do we slow down the speed rate of text to speak on what’s app ?- I can do it on my iPhone functions but it doesn’t impact the WhatsApp TTS playback speed.
The IMEI number is not about the SIM card but the SIM slot in your phone. It’s written on your phone so no matter which SIM card you put in or remove, it stays the same.
For those with phones with two (2) IMEI numbers but only one (1) SIM card slot -- this means the phone has an eSIM built in. Not all countries are eSIM capable, so be aware. [Hey, I had to get a new phone since my batteries literally bloated and destroyed my old cellphone -- so I had to research for my new phone 😭😂].
5G cell phones and broadband routers generally have both SA and NSA available. But you definitely check the specs of the device before buying to double check.
At the 2:55 mark you've failed to say what needs changing on the computer to 'see' the USB tethered phone. Laptops with WiFi have to be 'told' to ignore the connections they can 'see' and use the USB tether instead. HOW? Click where? Enable WHAT? Thanks
Hey, generally speaking, a sim plan refers to just the sim so airtime only. Airtime = voice minutes, text and data. A mobile plan, I’d consider to be a phone plan. A phone plan is airtime plus the device e.g. if you get an iPhone with 20GB of data, that’s a phone plan but if you just get the sim with 20GB of data and no phone, that’s a sim plan.
If you often find yourself on EDGE, it means you don’t have great 4G/5G coverage so the phone has to frequently switch to 2G (EDGE) to stay connected. So to get rid of that, I’d check why the coverage is poor, and possibly consider other service providers. You can change the network settings in your phone to lock your phone to 4G or higher (or 3G or higher depending on your phone), so it won’t go to EDGE (2G network). But that means if you are in areas without 4G/5G coverage (or 3G), you will have no service. I won’t recommend that option.
Thanks, the video was really insightful but could you please explain why on an operator's perspective 3G has to be removed rather than use it as a hybrid network with 2G, 4G and 5G using compound antennas.
That’s because maintaining multiple technologies is not in the best interest of mobile operators in terms of efficiency. By phasing out the older technologies, they can utilise/re-farm the spectrum for newer technologies that offer much better value to customers. 2G and 3G networks are mainly good for voice calls which uses circuit switching and different radio access technologies which don’t use the network as efficiently as newer technologies do. So growing 4G and 5G and phasing out 2G and 3G makes business sense for operators. They just need to make sure they do it in the best way i.e. use those resources for newer networks with minimal disruption.
