diff --git a/main.py b/main.py
index ef78978..fe24394 100644
--- a/main.py
+++ b/main.py
@@ -120,7 +120,15 @@ def on_mqtt(data):
     max_old_time = epoch_time - 20
 
     # Build the message that will be sent to Telegram
-    telegram_message = "Callsign: <b><a href='https://brandmeister.network/#/profile/" +jsondata["SourceCall"] + "'>" + jsondata["SourceCall"] + "</a></b> ID: <b>" + str(jsondata["SourceID"]) + " </b> \nName: " +jsondata["SourceName"] + " \nTalkeralias: <b>" + jsondata["TalkerAlias"] + "</b>  \n-----------------------------------\nAccess via: <b>" + jsondata["LinkName"] + " </b>\nVia repeater: <b><a href='https://brandmeister.network/#/device/" + str(jsondata["ContextID"]) + "'>" + jsondata["LinkCall"] + "</a></b>\nSlot: " + str(jsondata["Slot"])  + " TG: " + str(jsondata["DestinationID"]) + "\nMaster: " + str(jsondata["Master"]) + "\nRSSI: <b>" + str(jsondata["RSSI"]) + " dBm</b>  BER: <b>" + str(round(jsondata["BER"],2)) + "%</b>"
+    source_call = jsondata["SourceCall"].strip()
+    # Without a callsign there is nothing to look up, so skip the links.
+    links_line = (
+        "\nLinks: <b><a href='https://www.qrz.com/db/" + source_call + "'>QRZ.com</a></b>"
+        + "  <b><a href='https://radioid.net/database/view?callsign=" + source_call + "'>RadioID.net</a></b>  "
+        if source_call
+        else ""
+    )
+    telegram_message = "Callsign: <b><a href='https://brandmeister.network/#/profile/" +jsondata["SourceCall"] + "'>" + jsondata["SourceCall"] + "</a></b> ID: <b>" + str(jsondata["SourceID"]) + " </b> \nName: " +jsondata["SourceName"] + " \nTalkeralias: <b>" + jsondata["TalkerAlias"] + "</b>  " + links_line + "\n-----------------------------------\nAccess via: <b>" + jsondata["LinkName"] + " </b>\nVia repeater: <b><a href='https://brandmeister.network/#/device/" + str(jsondata["ContextID"]) + "'>" + jsondata["LinkCall"] + "</a></b>\nSlot: " + str(jsondata["Slot"])  + " TG: " + str(jsondata["DestinationID"]) + "\nMaster: " + str(jsondata["Master"]) + "\nRSSI: <b>" + str(jsondata["RSSI"]) + " dBm</b>  BER: <b>" + str(round(jsondata["BER"],2)) + "%</b>"
     context_id = _as_int(jsondata["ContextID"])
     event_slot = _as_int(jsondata["Slot"])