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Simple Raspberry Pi Powered SMS Gateway

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Re: Simple Raspberry Pi Powered SMS Gateway

#51
post #13

Earlier quoted context omitted.

> The biggest challenge with the whole setup was finding a SIM from a provider who would let me top it up once per year and maybe send half a dozen texts in that time without deactivating the SIM, for a reasonable price Good point - so-called "pre-paid" SIMs seem to be hidden subscriptions nowadays. Does anyone have a table of suitable low-usage, long-term SIM vendors?

You might want to say what location you are in for a truly useful answer. In the UK at least most providers keep the SIM active if it sees some activity in a given space of time¹ irrespective of top-up activity². So if “low” use stretches as far as one text every month or two maybe just have it send an “I'm still here” message regularly. Also acts as a double-check that not getting alerts means all is OK instead of t…

What would be the answer in the US?

Re: Simple Raspberry Pi Powered SMS Gateway

#52
post #38
post #35

Earlier quoted context omitted.

Funnily enough that was the route I was initially going to go but I got scared because I read that the project is a violation of the ToS and your number _might_ get blocked if you use these third party clients. That's why I wrote the article on how to do it via SMS with a Pi. I tried to send myself notifications from NodeRed

> I read that the project is a violation of the ToS Could you find that source? Curious precisely what part of ToS it violates.

https://github.com/LibreSignal/LibreSignal/issues/37#issueco...

Re: Simple Raspberry Pi Powered SMS Gateway

#53
post #34

Earlier quoted context omitted.

Hey DeathArrow. Very very strange I'm the author of the article and I created this post and got the first few comments then when I reloaded the page it says you posted it and I can't upvote the post like it was my own. What gives? Do you work for ycombinator or somehing? Or did you post it shortly before me and the mods combined our posts and attributed it to you?

Mods combining posts and choosing the wrong winner sounds most plausible. Just email them and they'll make the correction because they do a dang good job.

> ...a dang good job.

I see what you did there.

Re: Simple Raspberry Pi Powered SMS Gateway

#54
Just a heads up to anyone thinking of doing this in prod.

We had a USB connected 3G dongle as SMS modem for years, every other month someone had to head over to the DC and re-seat the thing. Because it just stopped working. I don't think they're designed to be connected 24/7.

We eventually switched to an Ethernet connected SMS modem. Much more reliable, and it was actually made for production, had a longer antenna you could fix on top of a rack cabinet.

Re: Simple Raspberry Pi Powered SMS Gateway

#55

I'd love to get a setup like this with voice calls also supported. I'd like to be able to recieve my calls and texts on any device as I can with email/irc/matrix etc

If you don't absolutely need this to originate from a mobile subscription with your name on it, you can for far less money get a DID ("direct inwards dial"; the term colloquially means a virtual mobile number) with any of the numerous VoIP providers out there. Most of them not only provide in- and outbound calls on those DIDs, but also ditto for SMSes. The interface for voice calls is almost exclusively SIP, and for…

These services are great, except for the sites with mandatory sms 2fa that refuse to send to voip phone numbers (I'm looking at you, Apple).

Re: Simple Raspberry Pi Powered SMS Gateway

#58

Whats the max throughput here? Would the carrier be the bottleneck?

I have read that the typical consumer wireless account is for "personal use" and is limited to a "few hundred" SMS messages per day. The service provider may define exactly what "personal use" means at their discretion.

Re: Simple Raspberry Pi Powered SMS Gateway

#59

I’d be curious to know what carriers I could use with the dongle here in the USA..? I’ve been trying to make an IoT project and being that T-Mobile is shutting down their 3G GSM there’s only a few IoT devices that are licensed and approved for use with Verizon and AT&T for the 4G band. :/

Shouldn't be anything special to what you were doing with 3G, there are dozens of cheap 4G dongles or hat and certification isn't really any more special (heck Verizon even recommends and shows how to set up and configure a particular $30 5G/4G modem they connect to a Pi in their ThingSpace tutorial). As far as plans every major carrier has 4G IoT plans, prepaid or not depending on what you want. Also look into place…

It’s been a while since I’ve checked ThingSpace but looking at it now they have the SixFab hat listed..

Few years ago I bought the 4G hat from SixFab because it was marketed as being Verizon certified but it never worked. I’ll have to look into things again…

Re: Simple Raspberry Pi Powered SMS Gateway

#60

Earlier quoted context omitted.

You might want to say what location you are in for a truly useful answer. In the UK at least most providers keep the SIM active if it sees some activity in a given space of time¹ irrespective of top-up activity². So if “low” use stretches as far as one text every month or two maybe just have it send an “I'm still here” message regularly. Also acts as a double-check that not getting alerts means all is OK instead of t…

What would be the answer in the US?

https://www.twilio.com/iot/super-sim-card is one example.

Search for “US M2M SIM” for more vendors.

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