diff --git a/gst/dtmf/gstdtmfsrc.c b/gst/dtmf/gstdtmfsrc.c
index 07359361b9..4b2f9a2b5b 100644
--- a/gst/dtmf/gstdtmfsrc.c
+++ b/gst/dtmf/gstdtmfsrc.c
@@ -64,7 +64,9 @@
  * <entry>0-1</entry>
  * <entry>The application uses this field to specify which of the two methods
  * specified in RFC 2833 to use. The value should be 0 for tones and 1 for
- * named events. This element is only capable of generating named events.
+ * named events. Tones are specified by their frequencies and events are specied
+ * by their number. This element can only take events as input. Do not confuse
+ * with "method" which specified the output.
  * </entry>
  * </row>
  * <row>
diff --git a/gst/dtmf/gstrtpdtmfsrc.c b/gst/dtmf/gstrtpdtmfsrc.c
index 58dceb4661..48db31337e 100644
--- a/gst/dtmf/gstrtpdtmfsrc.c
+++ b/gst/dtmf/gstrtpdtmfsrc.c
@@ -62,7 +62,9 @@
  * <entry>0-1</entry>
  * <entry>The application uses this field to specify which of the two methods
  * specified in RFC 2833 to use. The value should be 0 for tones and 1 for
- * named events. This element is only capable of generating named events.
+ * named events. Tones are specified by their frequencies and events are specied
+ * by their number. This element can only take events as input. Do not confuse
+ * with "method" which specified the output.
  * </entry>
  * </row>
  * <row>