hallo to you i've seen this error in bearerbox: 2007-05-30 17:31:30 [5162] [7] DEBUG: SMPP PDU dump ends. 2007-05-30 17:31:30 [5162] [7] DEBUG: SMPP[T-Mobile]: Manually forced source addr ton = 1, source add npi = 1 2007-05-30 17:31:30 [5162] [7] DEBUG: SMPP[T-Mobile]: Manually forced dest addr ton = 1, dest add npi = 1 2007-05-30 17:31:30 [5162] [7] ERROR: Failed to convert string from <UTF-8> to <ISO-8859-1>, errno was <11> 2007-05-30 17:31:30 [5162] [7] ERROR: Failed to convert msgdata from charset <UTF-8> to <ISO-8859-1>, will send as is. 2007-05-30 17:31:30 [5162] [7] DEBUG: SMPP[T-Mobile]: Sending PDU: 2007-05-30 17:31:30 [5162] [7] DEBUG: SMPP PDU 112728 dump: can you help me please ? thank you Gottfried