diff --git a/docs/c-netz.html b/docs/c-netz.html
index e9189f2..36575d5 100644
--- a/docs/c-netz.html
+++ b/docs/c-netz.html
@@ -54,7 +54,7 @@ A caller must not know the location of the phone anymore to reach the right base
 	<li>Channel spacing: 10 KHz and optionally 12.5 KHz
 	<li>Voice modulation: FM
 	<li>Signaling modulation: carrier FSK
-	<li>Frequency deviation: 2.4 KHz (FSK)
+	<li>Frequency deviation: 2.5 KHz (FSK); 2.4 KHz (Voice)
 	<li>Mobile station transmit power: 50 mW up to 15 Watts
 	<li>Base station transmit power: 25 Watts
 	<li>Features: Speech Compandor, Audio scrambling