Looked up the cited spec[0] and the relevant codes are on page 53[1]. If you send `00000010` it should delete the previous SMS. Pretty cool. Of course, this onl

Looked up the cited spec[0] and the relevant codes are on page 53[1]. If you send `00000010` it should delete the previous SMS. Pretty cool. Of course, this only happens if the device respects the spec (looks like the receipt of deletion, i.e. the SMS-STATUS-REPORT, can also be spoofed). In other words, SMS is still "stupid tech," and deleting is not guaranteed. [0] https://www.etsi.org/deliver/etsi_gts/03/0340/05.03.00_60/gsmts_0340v050300p.pdf https://www.etsi.org/deliver/etsi_gts/03/0340/05.03.00_60/gs... [1] https://imgur.com/a/iLwXpMZ https://imgur.com/a/iLwXpMZ