diff --git a/encoding/gsm7.go b/encoding/gsm7.go
new file mode 100644
index 0000000..36fdbe1
--- /dev/null
+++ b/encoding/gsm7.go
@@ -0,0 +1,18 @@
+package encoding
+
+import (
+	"bytes"
+	"log"
+)
+
+type GSM7Coder struct{}
+
+func (c *GSM7Coder) Encode(s string, buf *bytes.Buffer) {
+	utf8 := []byte(s)
+	log.Println(utf8)
+	buf.Write(utf8)
+}
+
+func (c *GSM7Coder) Decode(buf *bytes.Buffer) string {
+	return buf.String()
+}
diff --git a/encoding/gsm7_test.go b/encoding/gsm7_test.go
new file mode 100644
index 0000000..1efe42a
--- /dev/null
+++ b/encoding/gsm7_test.go
@@ -0,0 +1,58 @@
+package encoding
+
+import (
+	"bytes"
+	"testing"
+)
+
+func TestGSM7EncodeSimpleASCIIString(t *testing.T) {
+	coder := &GSM7Coder{}
+	var buf bytes.Buffer
+	input := "Sunshine"
+
+	expected := []byte{0b11010011, 0b10111001, 0b10111011, 0b10001110, 0b01001110, 0b10111011, 0b11001011}
+	coder.Encode(input, &buf)
+
+	if !bytes.Equal(buf.Bytes(), expected) {
+		t.Errorf("Expected %v, but got %v", expected, buf.Bytes())
+	}
+}
+
+func TestGSM7DecodeSimpleASCIIString(t *testing.T) {
+	coder := &GSM7Coder{}
+	var buf bytes.Buffer
+	input := []byte{0b11010011, 0b10111001, 0b10111011, 0b10001110, 0b01001110, 0b10111011, 0b11001011}
+
+	expected := "Sunshine"
+	buf.Write(input)
+	output := coder.Decode(&buf)
+
+	if output != expected {
+		t.Errorf("Expected %v, but got %v", expected, output)
+	}
+}
+
+func TestGSM7EncodeEmptyString(t *testing.T) {
+	coder := &GSM7Coder{}
+	var buf bytes.Buffer
+	input := ""
+
+	expected := []byte{}
+	coder.Encode(input, &buf)
+
+	if !bytes.Equal(buf.Bytes(), expected) {
+		t.Errorf("Expected %v, but got %v", expected, buf.Bytes())
+	}
+}
+
+func TestGSM7DecodeEmptyString(t *testing.T) {
+	coder := &GSM7Coder{}
+	buf := bytes.NewBuffer([]byte{})
+
+	expected := ""
+	output := coder.Decode(buf)
+
+	if output != expected {
+		t.Errorf("Expected %v, but got %v", expected, output)
+	}
+}