I have developed application to send sms using modem wavecom fastrack M1306B, and it work well (I have 20â€™s client). But when new modem arrived and Iâ€™m using it, there is error. Incoming message that received by ME (Mobile Equipment) is corrupt 7 character in the beginning, EX: when Iâ€™m sending message â€œTry this messageâ€ then the message that show by ME is â€œs messageâ€. I check the new modem, the only difference between the old one and this new modem is in the firm wire, and the old one using 651 and the new one is 655. Does this difference create the error? Iâ€™m using text mode to send the message and not using PDU type.
Please help me.