diff --git a/connection/Extensions.st b/connection/Extensions.st
new file mode 100644
index 0000000..bdbe52c
--- /dev/null
+++ b/connection/Extensions.st
@@ -0,0 +1,29 @@
+"
+ (C) 2014 by Holger Hans Peter Freyther
+ All Rights Reserved
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as
+ published by the Free Software Foundation, either version 3 of the
+ License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"
+
+SMPPEnquireLink extend [
+    connectionDispatchOn: aConnection with: aMessage [
+        aConnection respondToEnquire: aMessage
+    ]
+]
+
+SMPPBindTransceiverResponse extend [
+    connectionDispatchOn: aConnection with: aMessage [
+        aConnection receviedResponse: aMessage
+    ]
+]
diff --git a/connection/SMPPConnection.st b/connection/SMPPConnection.st
index ac7ed2b..05564c5 100644
--- a/connection/SMPPConnection.st
+++ b/connection/SMPPConnection.st
@@ -38,15 +38,11 @@ Osmo.OsmoStreamSocketBase subclass: SMPPConnection [
     ]
 
     scheduleBindTrx [
-        | header body seq data |
-
-        seq := nextSeq.
-        nextSeq := nextSeq + 1.
+        | header body |
 
         header := SMPPPDUHeader new
                     commandId: SMPPBindTransceiver messageType;
                     commandStatus: 0;
-                    sequenceNumber: seq;
                     yourself.
         body := SMPPBindTransceiver new
                     systemId: systemId;
@@ -58,11 +54,18 @@ Osmo.OsmoStreamSocketBase subclass: SMPPConnection [
                     addressRange: #[];
                     yourself.
 
-        data := (SMPPMessage new
+        self send: (SMPPMessage new
                     header: header;
-                    body: body;
-                    toMessage) asByteArray.
-        writeQueue nextPut: data.
+                    body: body)
+    ]
+
+    send: aMessage [
+        | seq |
+        seq := nextSeq.
+        nextSeq := nextSeq + 1.
+
+        aMessage header sequenceNumber: seq.
+        writeQueue nextPut: aMessage toMessage asByteArray
     ]
 
     connect [
@@ -84,11 +87,26 @@ Osmo.OsmoStreamSocketBase subclass: SMPPConnection [
 
         [
             msg := SMPPMessage readFrom: socket.
-            msg inspect.
+            msg body connectionDispatchOn: self with: msg
         ] on: Error do: [:e |
             e
                 inspect;
                 pass
         ]
     ]
+
+    respondToEnquire: aMessage [
+        | msg |
+        msg := SMPPMessage new
+                    header: (SMPPPDUHeader new
+                                commandId: SMPPBodyBase enquireLinkResp;
+                                commandStatus: 0;
+                                sequenceNumber: aMessage header sequenceNumber;
+                                yourself);
+                    body: #[].
+        self send: msg
+    ]
+
+    receviedResponse: aMessage [
+    ]
 ]
diff --git a/package.xml b/package.xml
index 29267f4..0528278 100644
--- a/package.xml
+++ b/package.xml
@@ -41,6 +41,7 @@
     <filein>codec/SMPPMessage.st</filein>
 
     <filein>connection/SMPPConnection.st</filein>
+    <filein>connection/Extensions.st</filein>
 
     <test>
         <sunit>Osmo.SMPPPDUHeaderTest</sunit>