Hi, I tried to send the ciphertext over SMS, but when Legato packing the ciphertext string into the buffer I got this error: [image] Not sure whether it is because the ciphertext is too long that the buffer size exceeds…

here says it is only 140 bytes long, probably you need to do multiple SMS. https://docs.legato.io/latest/c_sms.html

Exceed buffer while attempting to send SMS

jyijyi May 9, 2021, 3:10am 2

It seems it is too long, you can shorten the size first.

Btw, You can try with sending sms with pdu mode in AT command first

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