I still use one which gets one-way service from <https://pagersdirect.net/> (~$14/mo, with phone number and pager included). Most US cities, large and small, still have active infrastructure. I live in a city with a few hundred thousand people, great coverage.

This has replaced my mobile phone, which I no longer carry. It also prevents spammers from messaging... because the systems don't understand this antiquated technology [1].

For those interested, Pagers Direct has an email-to-pager option (I don't use it, phone digits only please caller, after the beep). It also has two-way pagers, which I have no experience with.

One caution: for one-way pagers, if you're out of range[0] when somebody sends you text, you will never get the message (no handshake/confirmation).

[0] does not use traditional cellular infrastructure

[1] TBH: most humans don't either, unless you explain how to page somebody: key in your callback#/code after the beep [no audio/text]

[•] I don't work for the above-linked paging service, I'm just a very happy customer.

>I'd love to hear your thoughts on the IP-to-Phone-Number mapping logic (it's purely visual, but I'm really into it).

Personally, this seems like a really bad idea. The similarity to actual phone numbers might lead to confusion by non-technical high-trust contactors. Worse (e.g.) if the IP were 91.1x.x.x then this could lead to further confusion &/or erroneous 9-1-1 misdials (by inept contactors).

It's a UDP packet, ought it not be in IP-format?

>where you only want interruptions from a high-trust circle

I don't even have a phone contact number anymore. After you page me, I'll VoIP you back from an outbound-only.

But overall I LOVE that you have attempted this; only real problem for your average installer/recipient is that most home ISPs are firewalled (so a UDP7777 inbound isn't possible), but this obviously isn't for even your average technical installer.

----

Just leave me alone, world/SPAMmers!

How do you prevent malicious actors from invading your 7777UDPs?

Landing page (doesn't link to anything): https://fob.launchbowl.com/

A little word dump of thoughts at the start of the journey: https://launchbowl.com/e_ink_pager

Your project seems really cool and allows you to bring your own hardware. Out of curiosity, have you blocked all notifications on your phone? Would this be run on your computer? Would you ever move in the direction of a physical device?

Definitely old but highly reliable.

or https://shop.exploitee.rs/shop/p/the-hacker-pager

PS: The "SHA256 CHECKSUMS VERIFIED." is static. No hash check is performed, and as far as I can see the website doesn't have a list of hashes to check.