This usually occurs when there is a mismatch between the message ID of the original message and the receipt. You can try to set the 'MessageIdFormat' property in the advanced settings of the SMPP Gateway to different values and test each setting.
I have an SMPP connection configured and when an SMS is sent, Diafaan is not updating the DLR status from the upstream vendor. How can we resolve this?
Most Users Ever Online: 494
Currently Browsing this Page:
Guest Posters: 621
Newest Members:, Henk Helmantel
Administrators: Henk Helmantel: 1323