string
	msg = "Test Тест";

tmpData = System.Text.Encoding.BigEndianUnicode.GetBytes(msg);

// sm_length
data[pos++] =
#if !TEST_LONG_MESSAGE
	(byte)tmpData.Length
#else
	 0 
#endif
;

#if TEST_LONG_MESSAGE
	data[pos++] =  0 ; //short_message

	// sar_msg_ref_num 0x020c Parameter Tag
	data[pos++] = 0x02;
	data[pos++] = 0x0c;
	// sar_msg_ref_num Length
	data[pos++] = 0x00;
	data[pos++] = 0x02;
	// sar_msg_ref_num Value
	data[pos++] = 0x00;
	data[pos++] = 0x01;

	// sar_segment_seqnum 0x020f Parameter Tag
	data[pos++] = 0x02;
	data[pos++] = 0x0f;
	// sar_segment_seqnum Length
	data[pos++] = 0x00;
	data[pos++] = 0x01;
	// sar_segment_seqnum Value
	data[pos++] = 0x1;

	// sar_total_segments 0x020e Parameter Tag
	data[pos++] = 0x02;
	data[pos++] = 0x0e;
	// sar_total_segments Length
	data[pos++] = 0x00;
	data[pos++] = 0x01;
	// sar_total_segments Value
	data[pos++] = 0x1;

	// more_messages_to_send 0x0426 Parameter Tag
	data[pos++] = 0x04;
	data[pos++] = 0x26;
	// more_messages_to_send Length
	data[pos++] = 0x00;
	data[pos++] = 0x01;
	// more_messages_to_send Value
	data[pos++] = 0x0;

	// message_payload 0x0424 Parameter Tag
	data[pos++] = 0x04;
	data[pos++] = 0x24;
	data[pos++] = (byte)tmpData.Length; // Length
#endif
Array.Copy(tmpData,  0 , data, pos, tmpData.Length); // short_message || Value
pos += tmpData.Length;

data[pos++] = (byte)tmpData.Length; // Length