diff --git a/index.html b/index.html
index e32dfa7..3af68df 100644
--- a/index.html
+++ b/index.html
@@ -291,15 +291,9 @@
                     return;
                 }
 
-                // compose message
-                const txtType = Constants.TxtTypes.Plain;
-                const attempt = 0;
-                const senderTimestamp = Math.floor(Date.now() / 1000);
-                const pubKeyPrefix = contact.publicKey;
-                const text = message;
-
                 // send message
-                await this.connection.sendCommandSendTxtMsg(txtType, attempt, senderTimestamp, pubKeyPrefix, text);
+                const response = await this.connection.sendTextMessage(contact.publicKey, message);
+                console.log(response);
 
             },
             async resetPath(contact) {
diff --git a/src/connection/connection.js b/src/connection/connection.js
index 16a1b3c..759c414 100644
--- a/src/connection/connection.js
+++ b/src/connection/connection.js
@@ -229,7 +229,8 @@ class Connection extends EventEmitter {
 
     onSentResponse(bufferReader) {
         this.emit(Constants.ResponseCodes.Sent, {
-
+            expectedAckCrc: bufferReader.readUInt32LE(),
+            estTimeout: bufferReader.readUInt32LE(),
         });
     }
 
@@ -310,6 +311,29 @@ class Connection extends EventEmitter {
         });
     }
 
+    sendTextMessage(contactPublicKey, text) {
+        return new Promise(async (resolve, reject) => {
+            try {
+
+                // resolve with the first sent response
+                this.once(Constants.ResponseCodes.Sent, (response) => {
+                    resolve(response);
+                });
+
+                // compose message
+                const txtType = Constants.TxtTypes.Plain;
+                const attempt = 0;
+                const senderTimestamp = Math.floor(Date.now() / 1000);
+
+                // send message
+                await this.sendCommandSendTxtMsg(txtType, attempt, senderTimestamp, contactPublicKey, text);
+
+            } catch(e) {
+                reject(e);
+            }
+        });
+    }
+
 }
 
 export default Connection;