Hello, seems to me that if cellphone sends an SMS shorter than 3 characters (eg: "aa") it is sent as empty string this maybe because of some snafu in PDU "payload" management in smsops_impl.c , pointer arithmetic between different characters' coding (ASCII, UTF8, UCS2, etc) (tested with OnePlus 5t, 6t, Open5GS, SRSRAN) -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/3211 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/issues/3211(a)github.com>