Hi, I have difficulties in implementing the DLR and keeping track of unsent message.
Through HTTP GET Request, I am able to send SMS. I have use dlr-mask and dlr-url to get the status of the message but it only mentioned "SMSC submit" (8) even though the message has successfully reached the recipient. I am using GSM modem. 1) How can I determine the message has indeed reached the recipients? 2) How can I keep track of unsent SMSs ( their content, recipient's number etc)? Thanks in advance.
