Hi,
When sending sms via openbsc commandline the sms gets extra data added to its tail. The coversion from text to PDU results in the converted data + garbage, this data is posted to the 'sms' database 'user-data' field, and then sent. in the 'sms' database you can verify that a short sms text results in long user-data
phone to phone sms works without problems.
Henry