diff --git a/lib/smstools-handler/sent.js b/lib/smstools-handler/sent.js
index 7e49c82..61bb176 100644
--- a/lib/smstools-handler/sent.js
+++ b/lib/smstools-handler/sent.js
@@ -27,15 +27,20 @@ module.exports = async (msgFilename) => {
     }
 
     const to = parsedMsg.headers.get('to').text;
+    const modem = parsedMsg.headers.get('modem');
     const imsi = parsedMsg.headers.get('imsi');
+    const sendingTime = parsedMsg.headers.get('sending_time');
     const { text } = parsedMsg;
 
     logger.info('Message sent', {
         eventType,
         msgFile: msgFilename,
         to,
+        modem,
         imsi,
+        sendingTime,
         text,
+        textLength: text.length,
     });
 
     if (!to || !imsi || !text) {