diff --git a/source/_integrations/netgear_lte.markdown b/source/_integrations/netgear_lte.markdown
index ebc8b01ff33..65351a5ef47 100644
--- a/source/_integrations/netgear_lte.markdown
+++ b/source/_integrations/netgear_lte.markdown
@@ -21,6 +21,13 @@ There is currently support for the following device types within Home Assistant:
 
 The integration supports sending notifications with SMS, reporting incoming SMS with events and reporting the modem and connection state in a number of sensors and binary sensors.
 
+<div class='note'>
+
+Splitting of long SMS messages is not supported so notifications can contain a maximum of 70 characters. Simple messages using the reduced GSM-7 alphabet can contain up to 160 characters. Most emojis are not supported.
+
+</div>
+
+
 ## Configuration
 
 To enable the integration, add the following lines to your `configuration.yaml` file: