frontpage.
newsnewestaskshowjobs

Made with ♥ by @iamnishanth

Open Source @Github

Open in hackernews

Ask HN: Why isn't mobile phone service restricted to emergency numbers only?

1•amichail•7h ago
The internet via cellular data could be used for all non-emergency phone calls.

Why isn't this done?

Comments

bell-cot•7h ago
Installed base.

And (my understanding) either out in the boonies, or when services are running in some degraded modes, that would cut off voice service to non-emergency numbers.

iwanttocomment•7h ago
Most cellular calls are already using IP data via Voice over LTE (for 4G), Voice over New Radio (for 5G), or Voice over IP (ie "Wi-Fi Calling") on most American providers. There is an automatic fallback to the conventional circuit-switched mobile network if data reception is not available or the call can't be completed using IP.

The transition to IP calling has been happening since 2012 and virtually all modern phones currently support it - no need to put additional restrictions in place for the edge cases where VoLTE et al don't work.

https://en.wikipedia.org/wiki/Voice_over_LTE

https://en.wikipedia.org/wiki/Voice_over_NR

PaulHoule•7h ago
Voice calls on modern cellular networks are IP-based, see

https://en.wikipedia.org/wiki/Voice_over_NR

amichail•7h ago
But why do we still have phone numbers?
PaulHoule•6h ago
Why not? They are ergonomic (I can remember my phone number, you can easily type it in it) and won't be running out in the North American Numbering Plan at least until the 2050s:

https://www.nanpa.com/reports/npa-reports

I guess IPv4 numbers have a similar number of digits and support a similar range, but attempts to make them location-portable have failed

https://en.wikipedia.org/wiki/Mobile_IP

IPv6 numbers are way too long. I guess you could have something DNS based but why?

Europe's first HPC ARM processor lands at TSMC

https://www.heise.de/en/news/Europe-s-first-HPC-ARM-processor-lands-at-TSMC-10483298.html
1•doener•1m ago•0 comments

Implement a robust multi-rate-limit throttling using Rails

https://www.prateekcodes.dev/implementing-api-throttling-multiple-endpoints-rails/
1•prateekkish•4m ago•0 comments

Foundation Models of Behavioral Data from Wearables Improve Health Predictions

https://arxiv.org/abs/2507.00191
1•tosh•6m ago•0 comments

Show HN: Gamified AI Tutor for School Students

https://www.edzy.ai/
1•gparashar•7m ago•0 comments

Are LLMs starting to become sentient?

https://garymarcus.substack.com/p/are-llms-starting-to-become-a-sentient
1•Duanemclemore•8m ago•0 comments

Gut microbes could protect us from toxic 'forever chemicals'

https://www.cam.ac.uk/research/news/gut-microbes-could-protect-us-from-toxic-forever-chemicals
1•timthorn•8m ago•0 comments

Mastering Postgres Replication Slots

https://www.morling.dev/blog/mastering-postgres-replication-slots/
1•gunnarmorling•9m ago•0 comments

Local Hole

https://en.wikipedia.org/wiki/Local_Hole
1•benbreen•11m ago•0 comments

GenAI Processors: Build powerful and flexible Gemini applications

https://developers.googleblog.com/en/genai-processors/
8•tzury•15m ago•0 comments

Show HN: Send RSS Feeds to Kobo E-reader

https://my.kobuddy.app/feeds
1•No-Arugula5818•15m ago•0 comments

Solar is EU's biggest power source ever in June 2025

https://ember-energy.org/latest-updates/solar-is-eus-biggest-power-source-for-the-first-time-ever-in-june-2025/
1•pentacent_hq•16m ago•1 comments

OpenFront: Realtime Risk-like multiplayer game in the browser

https://openfront.io/
3•thombles•20m ago•0 comments

Ask HN: How to Create Data Flow Diagrams?

2•shivajikobardan•28m ago•0 comments

An almost catastrophic OpenZFS bug and the humans that made it

https://despairlabs.com/blog/posts/2025-07-10-an-openzfs-bug-and-the-humans-that-made-it/
2•r4um•39m ago•0 comments

Unusual USAF and Space Force Drills Near Taiwan

https://www.newsweek.com/us-air-force-department-level-exercise-indo-pacific-china-war-2097031
1•burnt-resistor•40m ago•1 comments

Ask HN: I built what I feel is a great API, but I'm stuck figuring out GTM

1•jdbohrman•41m ago•0 comments

GPS Accuracy Comparison

https://old.reddit.com/r/bicycling/comments/1lwqzcj/epic_gps_accuracy_comparison/
2•dkga•46m ago•1 comments

My Postgres server! The SIGTERMs do nothing!

https://clickhouse.com/blog/sigterm-postgres-mystery
5•pradeepchhetri•47m ago•0 comments

MovieLens

https://en.wikipedia.org/wiki/MovieLens
1•leoh•47m ago•0 comments

Terraform: Replacing Tfstate with Import Blocks

https://daydreamunicorn.com/en/blog/stateless_terraform/
2•muxmuse•48m ago•0 comments

Is there a secret formula for election-winning slogans?

https://www.bbc.co.uk/news/articles/cjel1wlq7vdo
2•mellosouls•51m ago•1 comments

EU Rolls Out AI Code with Broad Copyright, Transparency Rules

https://www.bloomberg.com/news/articles/2025-07-10/eu-rolls-out-ai-code-with-broad-copyright-transparency-rules
1•doener•51m ago•0 comments

Beyond the Dataset – Deep tech data science

https://aneeshsathe.com/2025/07/10/beyond-the-dataset/
1•boredgargoyle•52m ago•0 comments

Running Android apps on a PC using remote phones?

https://github.com/GeeLark/about
2•patqes•53m ago•0 comments

I Worked for Big Pharma: what I saw will shock you

https://twitter.com/WallStreetApes/status/1943205851872755891
2•mgh2•57m ago•0 comments

Show HN: A tiny disk-based graph database for Node.js

https://github.com/freakynit/tiny-graph-db
1•freakynit•1h ago•0 comments

Difftastic: A structural diff that understands syntax

https://github.com/Wilfred/difftastic
2•gurjeet•1h ago•0 comments

Who Up?

https://walzr.com/who-up/
2•walz•1h ago•0 comments

Blocking mobile internet on smartphones improves brain health

https://academic.oup.com/pnasnexus/article/4/2/pgaf017/8016017?login=false
1•handfuloflight•1h ago•0 comments

Ask HN: Good non tech companies to work at

1•nzmkk•1h ago•1 comments