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Mon Feb 27, 2023 18:22
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vom: Small followup - I played around a bit more trying to get things happy with international format, etc. I ended up removing the national_prefixes line and instead in all my messages (I'm writing these out with Python) I add the header:
To_TOA: unknown
Once I did this, it seems like I can send nearly any format and it's happy. I even send some test international SMSes and they went right through.
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Wed Feb 22, 2023 01:03
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vom: Just got one of these little units:
https://www.multitech.com/models/92504435LF
https://www.multitech.com/documents/publications/data-sheets/86002270.pdf
It's a Quectel EG25-G under the hood:
https://www.quectel.com/product/lte-eg25-g
It's the "global" model, seems to support just about everything carrier/frequency-wise. I'm using it on Verizon in the USA.
115200 by default, manifests as 4 USB serials (and a wwan network interface). I'm running off ttyUSB2 (both ttyUSB2/3 seem to work for smstools).
Here's a few lines from my modem config pertinent to this setup:
check_network = 0
signal_quality_ber_ignore = yes
# Disable Quectel LWM2M
init = AT+QLWCFG="URC",0
I think it might be a Verizon thing, but even when it's registered smstools thinks it's not registered (not smstools fault, the CGREG commands report funky status). Similar issue with the BER.
The more interesting / specific thing - is that Quectel has some kind of "lightweight m2m" protocol/server software etc. I.e. for sensor type networks. This is on by default and you will get occasional "error" messages about this not being set up, not bootstrapping etc. The init line in my config disables the m2m stuff to make the modem much more quiet.
Also (possibly another Verizon thing...) - I had to set:
national_prefixes = 1
I could send manually in text mode all day long. PDU mode was giving me fits. Seemed like if I sent to +1AAAPPPSSSS (US/Canada format) the messages went into a blackhole. Setting the national_prefixes got me sending in PDU mode finally.
Not endorsing this product per say, it's just what I bought and had success with. Hopefully this information will help anyone else who might be interested in this or a similar model.
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Fri Jan 13, 2023 02:44
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vom: Going to reply to myself ;)
I got a Huawei UMG366 (Tmobile branded). Working well so far (USA - Using Tello sim (Tmobile MVNO)).
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Sat Jan 07, 2023 22:10
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vom: Hello,
Looking to hear from anyone who can confirm working hardware (ex: USB stick). What I mean is something that doesn't make you pull your hair out, exposes a serial port, and generally works. I'm in the USA - so as of last week (Verizon CDMA shutdown) I don't believe we have any 3G networks live anymore. So something 4G LTE at least.
I got an Alcatel IK41 from eBay - and so far I think I've found someone posting a note saying that it's firmware only lets it run in NDIS mode (i.e. ethernet) and mass storage - no serial. So I definitely want to avoid devices like that (assuming this is true).
Thanks in advance for any reports of hardware you are using successfully.
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