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Thanks for the logs, I did not realize that the message are sent with a SMPP Gateway instead of a GSM Modem Gateway.

There is nothing in the logs that explains why messages are sent multiple times, the message parts are all accepted by the SMPP server so there is no reason for Diafaan SMS Server to resubmit the message. I suspect that the problem lies earlier, perhaps the message is delivered multiple times to Diafaan SMS Server.

Can you send me a description of your setup and the configuration file you use (File-Export-Configuration)? That might give me a clue where the problem might come from.

Regards, Henk

Hello Erick,

The only reason I can think of why a long message is sent multiple times is when sending one of the message parts, probably the last one, causes an error. Sometimes a message that is sent by the GSM modem still causes an error when the send confirmation is not received forwarded to Diafaan SMS Server in time.

If you send the communication log of one of the multi-part message to dms@diafaan.com, I will have a look to see what goes wrong. It is ideal when the multi-part message is sent to the GSM modem itself so I can also see if the message is received properly.

Regards, Henk