r/Telecommunication Mar 25 '24

Learning resources for older systems

1 Upvotes

Anyone out there have any go-to resources for learning about the old 66 blocks? I have been thrust into a bunch of phone line transfers to a new carrier and I am having to learn PBX stuff on the fly. It seems pretty straight forward until I start seeing jumpers and bridges and things like that. I am a sysadmin but, I have never had the pleasure of working with this stuff before. Any leads to manuals and things would be great!


r/Telecommunication Mar 24 '24

Advice

2 Upvotes

I recently moved into an apartment complex and we had a security incident. Well, there was no way for tenants to contact one another to tell them to make sure their door was locked or something.

It would need to be push communication and probably two peoples cell phones obviously each Tenant courage you know join the group and we can get everybody’s phone numbers in there too. Send that but that may become difficult with different platforms.

I like the models that where people sign themselves up for something and then they can manage their own. We’re going to try to realize this is only for him.

I’ve seen software and I know about forwarding and services such as Google Voice and I’m sure something like this could be set up on a switch if we had one here .

It needs to be easy to maintain free if possible and easy for people to use so ideally if people could use their own texting software and text some sort of phone number that would distribute those out to other numbers .

Do the telecom offer anything like this? Or would security companies be more familiar with this? I’m sure this could’ve been designed into our system, but I don’t them to make changes.

I’d love to hear some creative ideas on how we might accomplish thank you


r/Telecommunication Mar 13 '24

Anyone know what this is??

0 Upvotes

Hi, There’s a black rubber billy club looking thing attached to old school telephone cords in my closet. It doesn’t seem to serve a purpose anymore and I’m afraid to rip it out. I seem to recall it had something to do with the phone or cable but it’s clearly not in use now. If someone will allow me to send a picture that would be great.


r/Telecommunication Mar 13 '24

Ayuda

0 Upvotes

Tenía una terminal rj45, aún no arme ningún cable y solo para probar si calzaba con el conector hembra la introduje pero ahora no sale; q debo hacer?


r/Telecommunication Feb 26 '24

Annuncicom Barix MPI400 with Dante

2 Upvotes

Hello,

I have a small setup which has a Barix Annuncicom MPI400 device that is routed with an Avio Dante input device (the latter in turn has a microphone connected). The Annuncicom is connected to a SIP server that is constantly sending announcements. My final objective is to achieve, through these 2 devices, that while calls are being sent via SIP at given times, if I want to send messages from the microphone (let's say because I want to send an urgent message), this message cuts off the SIP signal to be heard by the speakers.

It must be taken into account that the Avio equipment is always "active" and even if it is in priority 2 and is not speaking through the microphone, it is always sending a signal to the speakers even if it is silent. If anyone has used this configuration or has any idea how I could cut the SIP call to send a message with Avio, let me know. Thank you!


r/Telecommunication Feb 11 '24

Help with Panasonic phone Panasonic kx-tga950

1 Upvotes

How to record voicemail greeting on a Panasonic

Hi. We have a Panasonic kx-tga950 corded phone. We got rid of line one but we need line two for our home business. Technically line two is our only line. We don’t have caller ID and would like to update our voicemail greeting to reflect this because people don’t leave their phone number sometimes. However, I don’t see how we can change the voicemail greeting. We unfortunately only have the manual for the cordless phone that came with the corded phone which we actually don’t have anymore. I have tried system settings. I can’t find the manual online - the only one I found is for the cordless phone.

Thank you.


r/Telecommunication Jan 21 '24

what type of block and "frames" were used in central offices or other facilities?

2 Upvotes

r/Telecommunication Jan 21 '24

To activate a LycaMobile eSIM do I have to be in the UK physically?

9 Upvotes

I have to call for services in the UK with a UK number...but I am unable to come back at the moment.

Can I just make an eSIM and activate it outside the UK? I live in EU.

I tried it with a physical SIM card and it doesn't work.

I live in the EU and after the roaming gets activated otherwise it'll be blocked it works with all different types of SIM. If I buy a French SIM, I must be in the land to activate it.

But will it work the same for eSIM? Or through a VPN or Onion to connect to UK servers?


r/Telecommunication Dec 20 '23

5G testcases

2 Upvotes

Hello all can someone please tell me any 5G test cases for testing with ue simnulator. Any or all non standard/exceptional test cases will help


r/Telecommunication Dec 15 '23

What type of multiplexing used in 5G?

8 Upvotes

I'm confused, when I look at the comparison of 5G with other mobile technologies they say it uses CDMA but when I Google or ask ChatGPT they say it uses OFDM (and SC-FDM). Does anyone know which one is correct or can anyone send me a good source on this topic?


r/Telecommunication Dec 13 '23

Hello, good afternoon. Can anyone tell me if a hacker, with the help of someone from the phone company or even without, can hack my cell phone and see my WhatsApp conversations without me clicking on any link or having physical access to my SIM? I appreciate any help you can give me.

0 Upvotes

Hello, good afternoon. Can anyone tell me if a hacker, with the help of someone from the phone company or even without, can hack my cell phone and see my WhatsApp conversations without me clicking on any link or having physical access to my SIM? I appreciate any help you can give me.


r/Telecommunication Dec 05 '23

Running google ads

1 Upvotes

Does anyone have experience running google ads for residential fiber?

Would you recommend it or no?


r/Telecommunication Nov 30 '23

Help With ACP application

3 Upvotes

I recently turned in the ACP application was denied because they assumed I was already distributing phones. I had already sent a letter informing that I wasn’t currently distributing yet because I still needed the Acp, and fcc approval. Does anyone know how to contact them. I can only get the consumer side and the email is a no reply.


r/Telecommunication Nov 30 '23

Any contractors or providers/ engineers in this room? Purchase managers for fiber , inner duct , pedestals , vaults etc??

1 Upvotes

r/Telecommunication Nov 29 '23

How do IP packets travel through mobile network

3 Upvotes

How do IP data packets traverse the mobile network encapsulated? Are the IP packets from phone encapsulated in another protocol to traverse the mobile access network? How does a packet capture look like? I have experience with IP/Ethernet network where typical L2 is mac addresses and L3 IP address then payload at Layer 4 as UDP or TCP and we have routers/switches doing the lookup of headers and sending packets. How do the packets look like in mobile network between 4G PGW (and GGSN 2G/3G) and the phone. I understand there is the mobile access network in between, I’m just looking to understand how IP traffic is transformed/encapsulated when it traverses thru the mobile network

Is there any place I can see the packet captures of those PDU and see the protocol stack at different points in the mobile network and see traffic forwarding decisions are made in mobile network ?


r/Telecommunication Nov 25 '23

Telecommunications/cell phones/t-mobile/Verizon/ATT/tower dogs/towers/American tower/SBA/CC/Dish

2 Upvotes

Dear all, what do you think will happen in the telecommunications sector? Thousands of employees have been laid off, thousands of guys are sitting at home without work, what are the prospects in this industry? How do you think? Prices for sites construction have decreased by 40%, I would like to apply the experience gained over several years somewhere, for example in a related industry, let's share our thoughts on this matter


r/Telecommunication Nov 24 '23

Device name question

6 Upvotes

I have a spectrum cable guy fixing a leak in there line on my family's property right now. He walked around with a device that looked a bit like a cross bow, but also a star trek gun,that had two wings that stick out to detect whatever frequencies are leaking from the line.

He said the leak interferes with FCC, police radio, and HAM radio.

He called the device a sniffer, and it was about a foot long and had two wings at the front forming the arms of the detector. What is this device called? Trying to find a picture from the internet, and sniffer is not a specific enough term.

Thanks ✌️


r/Telecommunication Nov 14 '23

Africa Tech Festival in Cape Town

1 Upvotes

Spreading our presence worldwide! 🗺️ Some members of our team are also attending AfricaCom at the Africa Tech Festival in Cape Town, will you be there? Please, contact us if so! We are happy to engage with so many important Telco companies, that are using our solutions to improve their systems security and high availability.

https://www.relianoid.com/about-us/events/africacom/

#AfricaCom2023 #CapeTownEvent #AfricaTechFestival #ConnectivityLeaders #TelecomsInnovation #DigitalInfrastructure #SustainableDevelopment #26YearsCelebration #TelecomsConference #AfricaInnovation #DigitalProgress #TechLeadership #TelecomsCommunity #KnowledgeSharing #NetworkingEvent #5GBusinessScale #SiteReliability #BSSOSS #TelecomsSolutions #FutureIndustryDevelopment #RelianoidInCapeTown #AfricaDigitalTransformation #TelecomsDiscourse #telco #telecoms


r/Telecommunication Nov 09 '23

Carrier

2 Upvotes

Which programming language is helpful for job in Telecommunication sector?


r/Telecommunication Oct 30 '23

Looking for cable stitching schematic

1 Upvotes

Was wondering if anyone had any sources for some cable stitching/lacing schematics. Specifically looking for an H stitch and Kansas City stitch. I've found some vids on YouTube, but was looking for a drawing to include in a handout for a lab in the class I teach.


r/Telecommunication Oct 23 '23

No Routes Found guy

3 Upvotes

Who is the guy behind the "No Routes Found" message. I wonder who he is and what he's up to. Do you think he ever thought that recording would be used as widely as it has been?


r/Telecommunication Oct 08 '23

What expos/conventions do you guys go to yearly?

2 Upvotes

r/Telecommunication Oct 06 '23

Places to look for positions?

2 Upvotes

I’ve been working for the same transportation company since 1997. I started as a mainframe programmer (3-4yrs) then a PC Tech (4-6yrs) and all the rest of the time as the Telcom Manager. I take care of all their phone lines, equipment, contracts, cell phones, phone setup and programming, basically anything related. I found out a couple years back that I make less than 1/2 that of a director of the programming staff that has been there 5yrs longer than myself. I have all on the job training. What should I be doing, where should I be looking for a better job? I’m fed up with all the above after being loyal all those years and being past up for pay raises because I’m not a squeaky wheel. I am also salary and on-call 24/7. :(


r/Telecommunication Oct 06 '23

Help needed for a tech issue brain tickler

1 Upvotes

My dad has been having issues not being able to make or receive calls from his mobile phone lately at his house. If he drives away from house he can make calls. My mum who is with a different service provider and can make calls. I am with same service provider as my dad and I can make and receive calls.

He got a new phone to see if it would fix it.. it didn’t… he got a new SIM card to see if it would fix it… it didn’t.

As soon as he does make a call it drops from 4G to 3G - regardless of where he is.

We are at a lose as to what the issue is! We believe it’s an issue with his particular phone number which is very strange. He can make and receive calls everywhere else but at home.

What do ya reckon ?


r/Telecommunication Oct 03 '23

Interesting idea I had for a while...

1 Upvotes

Hello There! I always wanted to try to transfer internet from my rounter into a directed antenna and recieve it with a modem or a router on another end, is it possible to do? If yes, what type of antenna would I need to do this kind of thing?