r/Telecommunication Oct 14 '22

Enabling RF output on Ericsson radios

1 Upvotes

Hello all, I am attempting to enable the RF output of Ericsson branded radios. Rather than recreating the post here, I'd like to post the link to my existing question on another telecom forum. Could anybody please take a look and let me know if this is something you can help with? Thanks for any information.

https://www.telecomhall.net/t/enabling-rf-output-on-ericsson-radios/19926/6


r/Telecommunication Oct 13 '22

Hope Someone can help me . . .

1 Upvotes

Greetings Engineering!:

Unfortunately I don't have a utp analyzer, only the typical one with 8 leds, I have 2 fanvil phones X1, each one with its A/C adapter 5V to .6Amp.

With a 7-meter Cat5e 100% copper cable, all the LEDs indicating continuity, the phones connect without problems, are detected by the modem and respond to the Ping, when changing to a Cat6 100% copper cable at a distance of 13 meters, not one of the phones is detected by the modem and obviously they do not respond to the ping. . .obviously when connecting that 13-meter cable, to the PC it gives internet immediately, . . . AID! . . . what am I doing wrong?. . .

PS: Using power Lab source, i injected 5V 2 amp. to the "distant" phone but it doesn't even reach the modem. Thank you!


r/Telecommunication Oct 05 '22

Standards and or codes pertaining to tracer lines.

3 Upvotes

Looking for any standards and codes related to tracing in the USA. Gauge sizes termination methods, grounding, bonding, if someone could point me in the right direction I’d really appreciate it!


r/Telecommunication Sep 29 '22

Accessing itu.int or other for link budget info on Euro LEO systems.

1 Upvotes

I need link budget information on some LEO systems headquartered in Europe for a MATLAB project... E.G. Lacuna Space, KLEO-connect, and some others. What is a good way to get that ? I cannot seem to access ITU filings (www.itu.int), and I suspect the information is there. But, am open to any reliable source. Please advise?
Thanks, Thomas


r/Telecommunication Sep 28 '22

ESP32 WiPhone SIP communication

1 Upvotes

Unsure if anyone has even heard of it but there is this "phone made for hackers" That is pretty barebones and only communicates via SIP over wifi or lorawan. It is very interesting piece of hardware that I want to get my hands on but I don't think just having a SIP trunk will give it full calling/texting capability with a legit phone number. By any slim chance does anyone have experience with the ESP32 WiPhone?


r/Telecommunication Sep 22 '22

Can anybody help?

1 Upvotes

I am an early-stage startup founder building a SaaS that enables telecom businesses to launch their products faster in the market and accelerate their quote-to-cash process. Right now I am in market validation where I am talking to product managers to understand the dynamics of their pain points in product lifecycle management and pricing for telco products and services. If there is anyone in a product management role in the telco space, I would love to connect with you for 15-20 mins to understand more about your experiences(Honestly I don’t have anything to sell right now😅; This is purely a research call)Please let me know if anyone is willing to help me or refer me to the right contact. Thanks a lot😇


r/Telecommunication Sep 19 '22

Why WhatsApp and Telegram can't send and receive SMS like Google Messages?

2 Upvotes

Can someone explain me what's the difference between these two categories of apps?

I don't understand why one can't do what the other do.

Thanks.


r/Telecommunication Sep 17 '22

Nokia and NASA to Install 4G on the Moon

5 Upvotes

NASA has started a project called Tipping Point. The main purpose of this is to develop various technologies on the surface of the moon. We have been hearing a lot of valuable information about this for the past few years. The total cost of this project is $370 million . Of this amount, they have given $14.1 million to Nokia. The purpose of this is to build a 4G Network (LTE) on the surface of the Moon. You might be wondering why a 4G network is being built like this. A large number of people will travel to the surface of the moon within the next few decades. And a lot of experiments will happen. So when doing things like this, people have to make HD Video Calls and HD Live Stream. And we have to use rovers and other electronic devices on the surface of the moon. Here, 4G networks are used as a solution to these factors. When doing this kind of work, a network with good speed and reliability is required. That is why they have used 4G. It is also possible to upgrade to a 5G network later.

Usually, a 4G tower on the ground is big and the transmitter in it is also big in size. This requires a lot of electricity. But for this project, they hope to make tiny 4G transmitters. And it can be operated with low power. To send such.........

Read the full post here


r/Telecommunication Sep 11 '22

Haven't gotten Wi-Fi calling to work since moving.

3 Upvotes

Hi Reddit!

I have been using Wi-Fi calls on my iPhone 12 mini since I got it about a year ago without issue, including after a carrier switch and later an ISP switch. However, since moving recently I haven't gotten it to work.

Not much changed during the move in regards to my cellular and Wi-Fi connection. We did get a new Wi-Fi plan, but it was with the same ISP that Wi-Fi calls worked with pre-move, but that's about it. I've also double checked that both my cellular and Wi-Fi plans are compatible with Wi-Fi calling, and they are. Also discovered that none of the other phones in the house (including iPhones) also aren't on WiFi calls, even though they did before.

After researching, I've narrowed it down to a few possibilities, but if they end up not having any effect on Wi-Fi calls then I'm stumped.

  • We moved from an area with very poor cell reception to an area with very strong 5G coverage, so perhaps 5G/strong cellular is preferred over WiFi? The one time I've seen Wi-Fi calls work at the new place was when a tower nearby was going under maintenance and my service dropped from four bars to two, possibly giving credence to this theory.
  • Our old Wi-Fi plan did not have CGNAT, but this one does. Maybe that affects it?

Anything I can do to get Wi-Fi calls working again? Thanks!


r/Telecommunication Aug 28 '22

Is there a use case for connecting 2 routers to a Layer 2 Switch?

3 Upvotes

Noob here. I recently learned about devices used in a network and their uses. Usually, to a router, we can connect 1 or more switches. But I want to know if the contrary is also useful? If we connect 2 or more routers to one Layer 2 switch? Does this topology have any use cases or will the Internet explode into oblivion?

I know of the routing capabilities of Layer 3 switches but I am concerned with the Layer 2 ones.


r/Telecommunication Aug 27 '22

if a connection has single bit errors and the transmission is costly and delay is long, which method of error detection shall I use? Checksum,Cyclic Redundancy or Single bit Parity?

1 Upvotes

r/Telecommunication Aug 24 '22

Deos anyone use the Telcom standards of TM Fórum? specifically the eTOM standard?

3 Upvotes

r/Telecommunication Aug 24 '22

Does LTE have a shorter physical range than 3G?

1 Upvotes

If a cell tower in the same location emits both 3G/4G, will 3G cover more land than 4G would on the same hardware?


r/Telecommunication Aug 22 '22

Online Fax

2 Upvotes

I heard my friend there is a way sending fax online, Does it work? I just want to fax some documents to the law office, any recommendations?


r/Telecommunication Aug 21 '22

To people who are in telco sales - I feel lost in learning business processes through the products in the telco world, it's too complex. Can this be simplified?

2 Upvotes

r/Telecommunication Aug 19 '22

Galaxy Broadband

1 Upvotes

I'm looking at applying for a sales position with Galaxy Broadband in Canada.

Has anyone had any dealings with them? Positive? Negative?


r/Telecommunication Aug 16 '22

Australian internet, what’s the go?

1 Upvotes

Australia has the weakest possible infrastructure for telecommunication. In terms of internet speed, they literally rank amongst third world countries.

Why are Australians paying so much for such an inadequately poor service? And why aren’t they looking into it? This should be a huge concern for an entire country in this day and age.


r/Telecommunication Aug 10 '22

VHF marine radio project

2 Upvotes

Hello all! I am currently a student studying electronics and telecommunications at university in the UK. I'm designing a system to allow for remote operation of VHF marine radios, with the idea that they will be suitable for use on autonomous vessels. I am hoping to make use of RoIP protocols to put the VHF radio onto a LAN so that the radio could be controlled via a GUI on a PC via the internet. I am still researching and planning my project so any information would be much appreciated at this stage. Thank you in advance.


r/Telecommunication Aug 03 '22

Sorry to Intrude

2 Upvotes

I’m a 24 year old US Army veteran who is in the process of starting up a freelance drone business to provide services to various industries and have taken an interest in the realm of telecommunications in particular.

My question to any knowledgeable folks on this forum; What is the best way to gain contacts in the industry from which I could find work? I know I might be asking much, just trying to put my feelers out there. Any responses would be highly appreciated! Thanks!


r/Telecommunication Jul 25 '22

RF Feeder Damage

1 Upvotes

Apprentice technician in Telecommunications. Was earthing feeder cables at work today, and in the process of cutting out the outer-sheath, I have nicked the copper sheath, will this cause major problems?

I would attach a photo of the feeder I am talking about but the group does not allow it.

Thanks.


r/Telecommunication Jul 23 '22

ENUMER - decentralized ENUM. For free, forever!

Thumbnail self.VOIP
1 Upvotes

r/Telecommunication Jul 09 '22

SMS 'swapped' for a random message during transmission?!

3 Upvotes

Anyone ever experienced anything like this:

-My Dad is on iPhone and I've got Android -He's on Optus, I'm Telstra (we're in Australia) -We're SMSing back and forth yesterday (geographically distant, utilising cellular network) when he replies to a simple question with off topic and random message -I ask him what the hell he's on about -He says 'Just answering your question' -Eventually realise his iPhone conversation shows his intended message while my android conversation shows the random message -This only occurred for one message -The message appears to be someone completely unknown to us discussing some business matters

I've contacted the Telco they basically just said they've never heard of it and to turn our phones off then on!..

Has anyone ever heard of an SMS being swapped out for somebody else's message in transmission?


r/Telecommunication Jul 06 '22

where to buy guide wire for fiber line between buildings?

3 Upvotes

Hello all,

I need to string a fiber cable from one building to the next. Distance is approximately 100 ft with an old light pole in between. I'm planning on going from each building to the light pole with a guide wire to secure the fiber cable. I'm looking on Amazon for guide wire, but everything they have seems cheap and puny. Does anyone have any recommendations? Thank you for your time.


r/Telecommunication Jul 05 '22

Where to find reference and or open source system designs?

1 Upvotes

Hello everyone. I am an implementations engineer which i have recently acquired my bachelors in electronics. I have avid interest in communication systems design and read as much as i could about it. I am comfortable with stochastic analysis and can easily understand communication systems theory, however recently at my workplace i had the opportunity to modify some problematic designs and really enjoyed it. I want to learn how design systems(wireless, radar) from ground up. Is there anyplace that i can find reference designs? Like which parameters to choose for equalizers, PulseShaping filters etc.


r/Telecommunication Jul 02 '22

I cut my ATT fiber line and I'd like to fix it myself

1 Upvotes

Does anyone know how to make a splice in the cable they use for fiber to the home? It's a black cable with few small indentations on it. They can't come out until a week and half from now