diff --git a/pdu/submit.go b/pdu/submit.go
index b7b8775..4ec139d 100644
--- a/pdu/submit.go
+++ b/pdu/submit.go
@@ -5,6 +5,7 @@ import (
 	"encoding/ascii85"
 	"encoding/binary"
 	"fmt"
+	"log"
 
 	"github.com/warthog618/sms/encoding/gsm7"
 )
@@ -71,14 +72,23 @@ func (p *SUBMIT_SM) Encode(buf *bytes.Buffer) error {
 	if buf == nil {
 		return fmt.Errorf("cannot encode into nil buffer")
 	}
+	// This won't do...
+	// TODO: Implement your own encoders and shit
+	// ASCII is easy
+	// UCS2 should also be fairly easy, use uint16 or something
+	// GSM7 will not be easy
+	// See https://www.codeproject.com/Tips/470755/Encoding-Decoding-7-bit-User-Data-for-SMS-PDU-PDU
 	asciiEncoder := ascii85.NewEncoder(buf)
 	// TODO: Implement encodings bsed on p.data_coding
 	messageEncoder := gsm7.NewEncoder()
 
 	p.header.Encode(buf)
-	asciiEncoder.Write([]byte(p.service_type))
-	buf.Write(NULL_ARR)
-	asciiEncoder.Write([]byte(p.service_type))
+	n, err := asciiEncoder.Write([]byte("OOO"))
+	if err != nil {
+		return err
+	}
+	log.Println(n)
+	// asciiEncoder.Write([]byte(p.service_type))
 	buf.Write(NULL_ARR)
 	binary.Write(buf, binary.BigEndian, p.source_addr_ton)
 	binary.Write(buf, binary.BigEndian, p.source_addr_npi)