internal BodyPdu(ByteBuilder bb, ref int StartPosition) {
_ServiceType = SmppServiceType.Default;
_SourceAddress = string.Empty;
_DestinationAddress = string.Empty;
_EsmClass = new BitBuilder();
_RegisteredDelivery = new BitBuilder();
_ShortMessage = new SmppString();
_ServiceType =
SmppServiceType.FromValue(
SmppDataCoding.BaseEncoding.GetString(bb.ReadBytesUntil(ref StartPosition, 0)));
_SourceAddressTon = bb.ReadByte(ref StartPosition);
_SourceAddressNpi = bb.ReadByte(ref StartPosition);
_SourceAddress = SmppDataCoding.BaseEncoding.GetString(bb.ReadBytesUntil(ref StartPosition, 0));
_DestinationAddressTon = bb.ReadByte(ref StartPosition);
_DestinationAddressNpi = bb.ReadByte(ref StartPosition);
_DestinationAddress = SmppDataCoding.BaseEncoding.GetString(bb.ReadBytesUntil(ref StartPosition, 0));
_EsmClass.Value = bb.ReadByte(ref StartPosition);
_ProtocolId = bb.ReadByte(ref StartPosition);
_PriorityFlag = bb.ReadByte(ref StartPosition);
_ScheduleDeliveryTime =
new SmppDateTime(SmppDataCoding.BaseEncoding.GetString(bb.ReadBytesUntil(ref StartPosition, 0)));
_ValidityPeriod =
new SmppDateTime(SmppDataCoding.BaseEncoding.GetString(bb.ReadBytesUntil(ref StartPosition, 0)));
_RegisteredDelivery.Value = bb.ReadByte(ref StartPosition);
_ReplaceIfPresent = bb.ReadByte(ref StartPosition);
_ShortMessage.DataCoding = SmppDataCoding.FromValue(bb.ReadByte(ref StartPosition));
_SmDefaultMessageId = bb.ReadByte(ref StartPosition);
byte length = bb.ReadByte(ref StartPosition);
_ShortMessage.Value = bb.ReadBytes(ref StartPosition, length);
}