The no UDP limitation is for their $5 relay service. The phone service (anonymous IMSI) does not have that limitation. But the phone service is unlimited data-only, which is a problem if you need to be reachable by a phone number.
I can't wait to have a phone without a number. Nobody, and certainly no online service, "needs" to reach me by mobile.
Unfortunately many websites are in the dark ages when it comes to SMS for 2FA.
I'm still looking for a good service provider who can provide an online SMS service for this..
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sms4sats.com for burner sms
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