paralell multipart sms not working

Hi Our plan is to offer an subscription to get our mensa menu via sms. If just one MS get the sms everything works fine. But if two MSs are online and OpenBSC sends the sms paralell (for each TS) something goes wrong. The first two parts for both SMS will be transmitted correctly. But than we receive a malformed packet from the BTS (see No. 103 from wrong-sms.xml). After that the MS seems to be "confused" or something else is wrong, because the following parts (and part 2) will be transmitted several times. This is because the MS don't ack the sms correctly. On a previous test we get 14 sms parts instead of just 5 parts: 1. part: 1 times 2. part: 2 times 3. part: 3 times 4. part: 4 times 5. part: 4 times Attached are two gammu-logfiles. right-sms.xml: Only one MS is online and the sms is transmitted correctly. wrong-sms.xml: Two MSs are online. In the logfile you can only see one MS. Until packet No. 102 everything seems to be OK. ATM i don't know were to search on the code. I don't think there is a sms bug. I think there is a memory bug, because the packet No 103 seems to be random (or contains previous data). Maybe someone can give me an advice. Thanks in advance Dennis Wehrle