If let’s say a venue is sponsored by x company can they install tech in venue that interferes with other mobile carriers signals. I was in an outside venue today had 5 bars but my phones internet didn’t connect
Looking for silent, always-connected dial-in numbers (no music, no prompts, no interruptions)
I need a phone number I can call and keep connected for long periods, where the audio is completely silent
Does anything like this exist?
$200 is for per diem which includes food and lodging… if you can find a room for under $150. The other $100 is for the incidentals that hotels charge. Some of you company owners seem to forget about the incidental cost for crews that they have to pay out of pocket when they check in. Takes days to even get that back. So in my opinion $300 seems reasonable
Bought a property about 5 years ago with a cell tower on it. It took awhile to get things figured out with it and unfortunately my wife signed the very first contract they sent because she was ecstatic to get it going...any way they pay 850 a month for 5 year with 7 auto renewals and something like 10 percwnt increase every 5 years. The tower has been sitting empty for the most part but I caught a tech there recently saying hes with Verizon and they're going to be instsllining within the next few months....well now im being approached with offers for buy outs had several offers current offer is at 250k my question is sell and invest or keep and try and renegotiate terms to bring in more monthly....or just wait and see if Verizon actually installs...the tower is like 98ft tall pole style if that means anything
I work in a fringe zone and each passing month it seems like my company cares less and less as funding and equipment gets reduced, even our old gear is getting pulled without replacement and it leaves me worried. Is this a common problem?
I got to know about this sub today. Hence asking some questions as I have seen very experienced people here.
I have been in this domain for 4 years and currently in my 30s.
But, I don't feel like I am worthy enough to be called a 4 years experienced telco guy.
Over the time, I got good at troubleshooting system during deployment.
But when it comes to testing, my attitude was always like , its a feature, so just test it and close it without getting into depth like going though 3 gpp specs. Because I know right now I am only at top of the iceberg.
Reading specs is boring and all the nomenclatures is hard to grasp.
My manager has also told me to start reading specs and architecture properly else my time is very tough ahead.
My goal is to go into security testing in telecom domain. I would like if someone experienced can guide me further. Should I consider change of career instead?
Also, how important is the role of 3gpp specs in your job?
hey!! quick question, if my spectrum phone line were to be removed/ cut off what would happen if i got my own phone line on the same carrier which would be spectrum (if i worded that right) i've read that my phone number would change and thats overwhelming which is the only reason im stressing lol😭😭 but how would that work, im sorry in advance that im such a noob but i've never done this, i need a thorough process and steps if possible, im scared of phone calls which is why i've come onto here, also planning to move my ipad with my phone
Hi everyone,
I'm a telecom engineer with nearly 4 years of experience, but I actually come from a Computer Science background. I completed my Master's in Computer Applications (MCA) expecting to work in general networking or software engineering.
One day, I received an opportunity to work in telecom core networks. At first, I had no idea what IMS, VoLTE, HSS, MME, Diameter, MAP, CAMEL, or even roaming really meant. None of these topics were covered in depth during my university studies.
As I started working, I realized that understanding 2G, 3G, LTE, VoLTE, IMS, Roaming, and 5G Core Networks wasn't optional, it was essential. My job involved testing live operator networks, troubleshooting signaling issues, analyzing call flows, and working with network operators across different countries.
To help myself learn, I began taking detailed notes every day.
These weren't textbook notes. They were based on real-world experience, industry standards, customer deployments, troubleshooting sessions, and the technologies we use in production today.
Over the years, those notes grew into a complete learning guide.
It covers:
I initially shared these notes with a few colleagues and telecom professionals, and the feedback was overwhelmingly positive. Many told me they found them much easier to understand than traditional documentation.
That encouraged me to turn the notes into a book.
"Understanding Mobile Network Architecture & Service Flows,"
My goal wasn't to write an academic textbook, but to create a practical guide for:
I'd genuinely love to hear your feedback and suggestions from fellow telecom professionals.
Thank you!
I wanted to recharge my Airtel WiFi from phonePe to grab some cashback; but recently noticed that it wasn't going through.
I reached out to Airtel customer support, they mentioned Airtel has stopped the recharges from 3rd party apps and customers will be able to recharge only from thanks app.
Isn't it unfair trade practice and forcing customers to download their app to recharge wifi?
Have you faced a similar problem?
Hi, I think it is a big shame that scammers have turned phone calls from something exciting into something where you don't want to answer because it might be a scammer (and it usually is).
So I was thinking whether it is possible to design calls in a way where the caller doesn't know if you're actually answering? That way you can hear the background noise and whatnot before you pick it up, just like when someone comes to your door and you can see them through a peephole but they can't see you.
I could imagine it would change the psychology of phone calls. If you called, you could start talking and hope they can hear you, and they could pick up the call as soon as they realize it's a real person. And the scammers would have no way of knowing if there is actually a person on the line.
I'm not talking about if I can change my phone. But can a company start designing phones that works this way? Is it supported?
I’ve seen a lot of beginners get confused about where to start with 5G because there are so many terms: RAN, Core, gNB, AMF, SMF, UPF, NSA, SA, slicing, VoNR, spectrum, etc.
A practical beginner roadmap could look like this:
For beginners, I personally think the best order is:
Telecom basics → LTE → 5G architecture → call flows → tools → specialization
Curious to hear from people already working in telecom: would you change this roadmap? What skills do you think beginners ignore too much?
I would like to know what technologies and software are typically used on vessels to monitor telecommunication systems so that any alarms are immediately displayed in the control room.
How can a dry contact device that does not support IP communication be monitored via SNMP? In other words, how can a non-IP dry contact be integrated into an SNMP-based monitoring system?
Curious to hear from people who have been around long enough to watch the transition away from plain old telephone service in their regions. I work around older infrastructure fairly regularly and it still surprises me how much legacy copper is quietly hanging on in certain areas, sometimes holding up services nobody has properly migrated yet.
In some rural areas I've seen copper still being actively maintained because there's genuinely no viable replacement that meets the reliability bar, especially for alarm systems, elevator lines, and medical monitoring equipment. Carriers technically have the right to retire POTS in many jurisdictions now, but the practical reality on the ground is messier than the regulatory paperwork suggests.
For those of you who have been through a forced migration, what actually replaced the copper in your area? Was it a VoIP ATA solution, fixed wireless, fiber, or something else? Did the replacement hold up during power outages or severe weather the same way the old copper did?
Also interested in whether anyone has dealt with customers or sites that flat out refused migration and what the carrier actually did in those cases. There seems to be a wide gap between what the policy says and what actually happens when someone pushes back.
Would love to hear real world stories from people who have been through it on either the carrier side or the customer side.
Hi All,
I was out of India. My # here was with Jio. Due to no recharge the number was discontinued and given to Airtel. Now Airtel is asking me 25000+ gst to get my old number back as it is termed as ‘vanity number’.
Is there anyway I can get the number back without paying the exorbitant amount? I understand there might be some charges but 30k incl gst is unreasonable.
If anyone has any advice suggestions that’d be greatly appreciated. TIA
Looking for SEVERAL EXPERIENCED fiber installers in Indiana, North Carolina and Ohio for traveling work. Must be US citizen and willing to move locations with 1 weeks notice. Must be have truck/tools/ladders. Possibility to earn $104k-$208k. Potential to earn additional sales commissions.
Also seeking a candidate in Belle Mead, NJ.
PM if interested and qualified.
Hello,
I live in an area where I hardly receive the signal of the mobile network, as the cell tower is very far away. To get one bar of signal, I need to walk out of my house. I have broadband Internet at home.
I set up VoWiFi on my Samsung A51 cell phone, "WiFi calls" is enabled in the phone settings, and I noticed that:
Am I doing something wrong? Are these known issues with the way VoWiFi works?
Thank you.
Frontier Communications, now Verizon, will be shutting down copper facilities in many of their exchanges. We all knew it was coming. Others, such as AT&T, had already been making waves in the news over the last few months for the same thing. I'm surprised it has taken this long.
I've been trying to make 5G core architecture accessible to students and people early in their telecom careers. The feedback so far is that the restaurant analogy helps a lot. I wanted to share it here and get thoughts from people who actually work in the industry on whether the technical accuracy holds up.
The core idea: the 5G core as a restaurant
The AMF is the host. Registration, mobility management, NAS termination. First point of contact, tracks you as you move.
The AUSF and UDM are the bouncer and guest list. Authentication and subscription data. AUSF challenges your identity, UDM holds the credentials (SUPI, authentication vectors). No valid identity, no access.
The SMF is the manager. Session establishment, IP address allocation, and most importantly, control of the UPF over N4 using PFCP. Gives instructions, never touches data.
The UPF is the waiters. The actual data plane. Packet routing, forwarding, QoS enforcement, traffic reporting back to the SMF. This is where your packets actually live. And with CUPS (Control and User Plane Separation, defined in TS 23.501), the UPF can be deployed at the network edge independently of the control plane, which is the whole reason 5G can hit sub-millisecond latency for URLLC use cases.
The PCF is the house rules manager. Policy control, QoS rules, charging decisions via interaction with CHF.
The NRF is the staff directory. Service registration and discovery, the backbone of the service-based architecture.
The NWDAF is the brilliant observer. Network analytics and ML-based intelligence. The foundation of autonomous network management and what's being built upon for 6G.
My question for the community: does this mapping hold up from a practical standpoint? Any nodes or interfaces you'd explain differently to someone coming in fresh? Particularly curious about how people explain the N4/PFCP relationship and the SEPP for roaming scenarios, as those seem to be where the analogy starts to strain a bit.
Would love any pushback or additions from people working in the core.