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"Are you conflating eSIMs (which are just equivalent to physical SIMs) with "burner phone" apps? I guess it's possible that the MVNO uses voip numbers rather th

by rsync 6y ago

"Are you conflating eSIMs (which are just equivalent to physical SIMs) with "burner phone" apps? I guess it's possible that the MVNO uses voip numbers rather than mobile numbers" I am thinking specifically of eSIM providers like truphone who do all kinds of nice and interesting things, but the numbers are voip numbers. Yes, you do get a physical SIM from truphone but the numbers terminate to (non-mobile) numbers. You can't get SMS from shortcodes with truphone. "jmp.chat is a voip service and supports short codes just fine." I'm not so sure ... the issue here is receiving SMS from shortcodes (which is how gmail, for instance, sends 2FA auth to you) and I don't see that jmp.chat can receive SMS from shortcodes ... see[1] which says: "Unfortunately it did not. I was not consistently able to receive short code SMS. I've since fallen back to using cellphone service from Telus which allows me to receive shortcodes." [1] https://www.reddit.com/r/VOIP/comments/8z44iu/mobile_voip_carrier_with_support_for_sms_short/ https://www.reddit.com/r/VOIP/comments/8z44iu/mobile_voip_ca...

singpolyma3 6y ago
> I don't see that jmp.chat can receive SMS from shortcodes Hi there! One of the lead devs at JMP.chat here -- our service definitely supports receiving SMS from short codes. We cannot currently support Canada-only short codes (only north-america-wide short codes). I personally use my JMP number for receiving 2FA codes all of the time (and I have not had another phone number in 4 years).
- rsync 6y ago
  Thank you - this is interesting (I had not heard of jmp.chat prior to this thread). Can you comment on this: https://www.reddit.com/r/VOIP/comments/8z44iu/mobile_voip_carrier_with_support_for_sms_short/ https://www.reddit.com/r/VOIP/comments/8z44iu/mobile_voip_ca... ... and why the author might have experienced that ?
  - singpolyma3 6y ago
    It's hard to say without more information. The context there looks Canadian so it's possible their providers were using Canada-only short codes. Sometimes providers change strategies on a retry also (I always have to click "retry" for Google 2FA but it always works on second try)
numpad0 6y ago
> I am thinking specifically of eSIM providers like truphone who do all kinds of nice and interesting things, but the numbers are voip numbers. That has nothing to do with eSIM though? That’s just the operator terminating VoLTE to VoIP numbers. eSIM is the equivalent of OTA flashing in good old CDMA2000, just in LTE.

by rsync 6y ago

singpolyma3 6y ago

> I don't see that jmp.chat can receive SMS from shortcodes Hi there! One of the lead devs at JMP.chat here -- our service definitely supports receiving SMS from short codes. We cannot currently support Canada-only short codes (only north-america-wide short codes). I personally use my JMP number for receiving 2FA codes all of the time (and I have not had another phone number in 4 years).

rsync 6y ago
Thank you - this is interesting (I had not heard of jmp.chat prior to this thread). Can you comment on this: https://www.reddit.com/r/VOIP/comments/8z44iu/mobile_voip_carrier_with_support_for_sms_short/ https://www.reddit.com/r/VOIP/comments/8z44iu/mobile_voip_ca... ... and why the author might have experienced that ?
- singpolyma3 6y ago
  It's hard to say without more information. The context there looks Canadian so it's possible their providers were using Canada-only short codes. Sometimes providers change strategies on a retry also (I always have to click "retry" for Google 2FA but it always works on second try)

numpad0 6y ago

> I am thinking specifically of eSIM providers like truphone who do all kinds of nice and interesting things, but the numbers are voip numbers. That has nothing to do with eSIM though? That’s just the operator terminating VoLTE to VoIP numbers. eSIM is the equivalent of OTA flashing in good old CDMA2000, just in LTE.