Nick vs Networking
@nickvsnetworking.bsky.social
Telco Nerd - Mobile Networks, VoIP, Packet Core, IMS, all the Gs.
Penchant for Crossbar, Step-by-Step / Strowger and obsolete exchange kit.
Penchant for Crossbar, Step-by-Step / Strowger and obsolete exchange kit.
Pinned
Background to the “VoLTE Mess” | Nick vs Networking
nickvsnetworking.com
If you've ever wondered why carriers can't get voice / VoLTE right, here's an explainer: nickvsnetworking.com/background-t...
Reposted by Nick vs Networking
Perhaps eSafety should have it explained to them that a "pull request" on Github is different to Grindr.
September 24, 2025 at 6:30 AM
Perhaps eSafety should have it explained to them that a "pull request" on Github is different to Grindr.
Reposted by Nick vs Networking
Bang & Olufsen Beocom 1401 (1996)
September 14, 2025 at 9:26 PM
Bang & Olufsen Beocom 1401 (1996)
Handset / baseband manufacturers IMS stacks always come up with new ways to ruin my day. We're seeing certain Samsung phones stops sending RTP mid-call and instead send random unidentified data (Not IPv4/v6) making the UPF unhappy and drops the bearer.
nickvsnetworking.com/tales-from-t...
nickvsnetworking.com/tales-from-t...
Tales from the Trenches – Samsung mystery packet on IMS Call | Nick vs Networking
nickvsnetworking.com
September 9, 2025 at 8:13 PM
Handset / baseband manufacturers IMS stacks always come up with new ways to ruin my day. We're seeing certain Samsung phones stops sending RTP mid-call and instead send random unidentified data (Not IPv4/v6) making the UPF unhappy and drops the bearer.
nickvsnetworking.com/tales-from-t...
nickvsnetworking.com/tales-from-t...
Reposted by Nick vs Networking
No adblocker detected https://maurycyz.com/misc/ads/ (https://news.ycombinator.com/item?id=45176206)
No adblocker detected
maurycyz.com
September 9, 2025 at 7:39 AM
No adblocker detected https://maurycyz.com/misc/ads/ (https://news.ycombinator.com/item?id=45176206)
Reposted by Nick vs Networking
T-Mobile claimed selling location data without consent is legal–judges disagree https://arstechnica.com/tech-policy/2025/08/t-mobile-claimed-selling-location-data-without-consent-is-legal-judges-disagree/ (https://news.ycombinator.com/item?id=44944291)
T-Mobile claimed selling location data without consent is legal—judges disagree
T-Mobile can’t overturn $92 million fine; AT&T and Verizon verdicts still to come.
arstechnica.com
August 19, 2025 at 5:36 AM
T-Mobile claimed selling location data without consent is legal–judges disagree https://arstechnica.com/tech-policy/2025/08/t-mobile-claimed-selling-location-data-without-consent-is-legal-judges-disagree/ (https://news.ycombinator.com/item?id=44944291)
Handy #Elixir learning for today:
export ERL_AFLAGS="-kernel shell_history enabled"
Will give you the ability to scrollback in the iex shell for commands from previous sessions.
export ERL_AFLAGS="-kernel shell_history enabled"
Will give you the ability to scrollback in the iex shell for commands from previous sessions.
May 25, 2025 at 3:21 AM
Handy #Elixir learning for today:
export ERL_AFLAGS="-kernel shell_history enabled"
Will give you the ability to scrollback in the iex shell for commands from previous sessions.
export ERL_AFLAGS="-kernel shell_history enabled"
Will give you the ability to scrollback in the iex shell for commands from previous sessions.
Reposted by Nick vs Networking
Monday starts @KamailioWorld 2025 with an amazing lineup of sessions! Huge thanks to our sponsors that made it possible again: Sipfront, Sipgate, Diabolocom, Libon, Pascom, Mango Voice, Simwood, dSIPRouter, Snom, LOD, ClueCon, APIBan and Asipto - www.kamailioworld.com/k2025/
Kamailio World Conference 2025
www.kamailioworld.com
May 8, 2025 at 7:25 AM
Monday starts @KamailioWorld 2025 with an amazing lineup of sessions! Huge thanks to our sponsors that made it possible again: Sipfront, Sipgate, Diabolocom, Libon, Pascom, Mango Voice, Simwood, dSIPRouter, Snom, LOD, ClueCon, APIBan and Asipto - www.kamailioworld.com/k2025/
If you've ever wondered how big systems did observability at scale before computers, welcome to the wonderful world of the mechanical counter:
nickvsnetworking.com/before-there...
nickvsnetworking.com/before-there...
Before there was Grafana – How Telcos did metrics & observability at scale before computers | Nick vs Networking
nickvsnetworking.com
May 6, 2025 at 10:17 PM
If you've ever wondered how big systems did observability at scale before computers, welcome to the wonderful world of the mechanical counter:
nickvsnetworking.com/before-there...
nickvsnetworking.com/before-there...
Reposted by Nick vs Networking
Reading a bio of Claude Shannon and it crystallized a sense I have of how engineering culture has changed into tech culture. Shannon embodies a certain ethos that used to be everywhere, where the goal was to do really smart stuff, and spend your spare time on unicycles and flamethrowing trumpets.
April 26, 2025 at 3:41 PM
Reading a bio of Claude Shannon and it crystallized a sense I have of how engineering culture has changed into tech culture. Shannon embodies a certain ethos that used to be everywhere, where the goal was to do really smart stuff, and spend your spare time on unicycles and flamethrowing trumpets.
TIL that if you uninstall python3-yaml from Apt on Ubuntu it'll uninstall Netplan, breaking all networking if you reboot the machine...
April 20, 2025 at 8:36 AM
TIL that if you uninstall python3-yaml from Apt on Ubuntu it'll uninstall Netplan, breaking all networking if you reboot the machine...
Reposted by Nick vs Networking
The Kamailio Project now has a simple and open way of providing financial support to the project:
www.kamailio.org/w/donations/
www.kamailio.org/w/donations/
Donations – The Kamailio SIP Server Project
www.kamailio.org
April 7, 2025 at 1:33 PM
The Kamailio Project now has a simple and open way of providing financial support to the project:
www.kamailio.org/w/donations/
www.kamailio.org/w/donations/
Freaking loved this.
25 minutes into a 90 minute video that's just a guy talking about old telephone stuff and i'm in hog heaven. i am enthralled by the most boring shit on the planet, this is simply who i am
March 18, 2025 at 11:51 PM
Freaking loved this.
Reposted by Nick vs Networking
The Insecurity of Telecom Stacks in the Wake of Salt Typhoon Discussion
On The Insecurity of Telecom Stacks in the Wake of Salt Typhoon - Dhole Moments
Towards the end of last year, we learned that a group (allegedly affiliated with the Chinese government, referred to as “Salt Typhoon”) breached T-Mobile and other telecommunications co…
soatok.blog
March 12, 2025 at 6:20 AM
The Insecurity of Telecom Stacks in the Wake of Salt Typhoon Discussion
Reposted by Nick vs Networking
Nokia's Lunar Surface Communications System was supposed to be the first 4G network deployed on the moon and a test for future crewed missions. Things didn't go to plan.
Nokia Put a 4G Cellular Network on the Moon, but Couldn't Make a Phone Call
Nokia's Lunar Surface Communications System was supposed to be the first 4G network deployed on the moon and a test for future crewed missions. Things didn't go to plan.
wrd.cm
March 7, 2025 at 9:42 PM
Nokia's Lunar Surface Communications System was supposed to be the first 4G network deployed on the moon and a test for future crewed missions. Things didn't go to plan.
The illusive consumer who's willing to pay extra for QoS still yet to be found 18 years later...
18 years ago I wrote about how there is no economic rationale for (paid) #QoS in #broadband networks. Since then we've seen the technical and commercial failure of QoS in 4G/5G mobile networks and for streaming. But QoS doesn't go away lunaticthought.blogspot.com/2007/11/ther... #econsky #telecom
There is no economic basis for QoS
This was the outline of a paper I planned to write, but for which I just have too little time to get it finished. My main point is that QoS ...
lunaticthought.blogspot.com
February 27, 2025 at 9:38 AM
The illusive consumer who's willing to pay extra for QoS still yet to be found 18 years later...
Reposted by Nick vs Networking
Manager: "What's this milestone 'Living on a prayer' ?"
Me: "That's the documentation deliverable."
Manager: "What's the status of that?"
Me: "We're halfway there"
Manager: "Why is progress so slow?"
Me: "You fired Tommy"
Manager: "So?"
Me: "Tommy used to work on the docs"
Me: "That's the documentation deliverable."
Manager: "What's the status of that?"
Me: "We're halfway there"
Manager: "Why is progress so slow?"
Me: "You fired Tommy"
Manager: "So?"
Me: "Tommy used to work on the docs"
February 23, 2025 at 9:12 PM
Manager: "What's this milestone 'Living on a prayer' ?"
Me: "That's the documentation deliverable."
Manager: "What's the status of that?"
Me: "We're halfway there"
Manager: "Why is progress so slow?"
Me: "You fired Tommy"
Manager: "So?"
Me: "Tommy used to work on the docs"
Me: "That's the documentation deliverable."
Manager: "What's the status of that?"
Me: "We're halfway there"
Manager: "Why is progress so slow?"
Me: "You fired Tommy"
Manager: "So?"
Me: "Tommy used to work on the docs"
CAMEL had always been one of those weird #3GPP protocols that was hard for me to find info on or play with, I had a chance to work with it last year and get familiar with CAMEL, so here's the basics of CAMEL charging flows:
nickvsnetworking.com/basic-camel-...
nickvsnetworking.com/basic-camel-...
Basic CAMEL Charging Flow | Nick vs Networking
nickvsnetworking.com
February 15, 2025 at 8:58 PM
CAMEL had always been one of those weird #3GPP protocols that was hard for me to find info on or play with, I had a chance to work with it last year and get familiar with CAMEL, so here's the basics of CAMEL charging flows:
nickvsnetworking.com/basic-camel-...
nickvsnetworking.com/basic-camel-...
Reposted by Nick vs Networking
Why Blog If Nobody Reads It? https://andysblog.uk/why-blog-if-nobody-reads-it/ (https://news.ycombinator.com/item?id=42992159)
Why Blog If Nobody Reads It?
What's the point of blogging?
andysblog.uk
February 10, 2025 at 3:27 AM
Why Blog If Nobody Reads It? https://andysblog.uk/why-blog-if-nobody-reads-it/ (https://news.ycombinator.com/item?id=42992159)
Here's the final part in the 5 part series I've written on understanding how to use CGrateS for all your VoIP rating and billing needs, that somehow took me 3 years to write...
nickvsnetworking.com/cgrates-in-b...
nickvsnetworking.com/cgrates-in-b...
CGrateS in Baby Steps – Part 5 – Events, Agents & Subsystems | Nick vs Networking
nickvsnetworking.com
February 10, 2025 at 5:43 AM
Here's the final part in the 5 part series I've written on understanding how to use CGrateS for all your VoIP rating and billing needs, that somehow took me 3 years to write...
nickvsnetworking.com/cgrates-in-b...
nickvsnetworking.com/cgrates-in-b...
Ever wondered when to use what GTPv2-C source port?
No? Well, here's an answer anyway:
nickvsnetworking.com/gtpv2-source...
No? Well, here's an answer anyway:
nickvsnetworking.com/gtpv2-source...
GTPv2 Source Ports | Nick vs Networking
nickvsnetworking.com
February 8, 2025 at 3:03 AM
Ever wondered when to use what GTPv2-C source port?
No? Well, here's an answer anyway:
nickvsnetworking.com/gtpv2-source...
No? Well, here's an answer anyway:
nickvsnetworking.com/gtpv2-source...
Reposted by Nick vs Networking
This is perhaps the most beautiful cable map I've come across in the archives ... presents Britain as the center of the world
January 28, 2025 at 10:35 PM
This is perhaps the most beautiful cable map I've come across in the archives ... presents Britain as the center of the world
Reposted by Nick vs Networking
Deerfield, NY's (near Utica) boxy Long Lines tower
🎞️: Kodak Portra 800 (pushed +1 stop)
🎞️: Kodak Portra 800 (pushed +1 stop)
January 24, 2025 at 2:37 AM
Deerfield, NY's (near Utica) boxy Long Lines tower
🎞️: Kodak Portra 800 (pushed +1 stop)
🎞️: Kodak Portra 800 (pushed +1 stop)
Reposted by Nick vs Networking
My analysis on today's NBN announcement www.theguardian.com/technology/2...
NBN’s $3bn fibre revamp is great news but don’t Australians now care more about price than higher speeds?
The demise of NBN’s fibre-to-the-node technology is welcome but making the internet more affordable would have a much bigger impact
www.theguardian.com
January 13, 2025 at 6:37 AM
My analysis on today's NBN announcement www.theguardian.com/technology/2...
Before there was eCPRI and #OpenRAN there was OBSAI battling to make interoperable, so what happened?
A Tale of Two CPRIs:
nickvsnetworking.com/a-tale-of-tw...
A Tale of Two CPRIs:
nickvsnetworking.com/a-tale-of-tw...
A tale of two CPRIs | Nick vs Networking
nickvsnetworking.com
January 8, 2025 at 9:36 PM
Before there was eCPRI and #OpenRAN there was OBSAI battling to make interoperable, so what happened?
A Tale of Two CPRIs:
nickvsnetworking.com/a-tale-of-tw...
A Tale of Two CPRIs:
nickvsnetworking.com/a-tale-of-tw...
Reposted by Nick vs Networking
From @jeffgeerling.com - amazing video of engineers climbing a transmitter mast. I'm amazed at the fact new houses have been built right at the foot of the mast given the risk of big chunks of ice falling off it and the stays!
youtu.be/_cGuu7PjiVU?...
youtu.be/_cGuu7PjiVU?...
Engineers React to 1100 ft Radio Tower Climb
YouTube video by Geerling Engineering
youtu.be
December 27, 2024 at 12:08 PM
From @jeffgeerling.com - amazing video of engineers climbing a transmitter mast. I'm amazed at the fact new houses have been built right at the foot of the mast given the risk of big chunks of ice falling off it and the stays!
youtu.be/_cGuu7PjiVU?...
youtu.be/_cGuu7PjiVU?...