pdu0.setDestAddress(new Address((byte)0x00, (byte)0x01, "9695"));
pdu0.setEsmClass((byte)0x00);
pdu0.setRegisteredDelivery((byte)0x01);
pdu0.setDataCoding((byte)0x00);
Tlv tlv0 = new Tlv(SmppConstants.TAG_MESSAGE_PAYLOAD, "Test".getBytes("ISO-8859-1"));
pdu0.addOptionalParameter(tlv0);
ChannelBuffer buffer = transcoder.encode(pdu0);
String expectedHex = "000000300000010300000000000000000001013535353237313030303000000139363935000001000424000454657374";