From eed826387a791d3e75d05e72131e0141110d264d Mon Sep 17 00:00:00 2001
From: Andreas Eversberg <jolly@eversberg.eu>
Date: Tue, 6 Dec 2016 17:45:48 +0100
Subject: work on docs

---
 docs/a-netz.html | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'docs/a-netz.html')

diff --git a/docs/a-netz.html b/docs/a-netz.html
index ef2a5a6..280cad1 100644
--- a/docs/a-netz.html
+++ b/docs/a-netz.html
@@ -175,6 +175,12 @@ The base station detects the tone is missing and the speech path is connected th
 
 <center><img src="a-netz-yellow.jpg"/></center>
 
+<p>
+Theoretically all combinations of 30 tones could be assigned to 27405 different subscribers.
+Only 24375 combinations can be encoded with the last 5 digits, because some digit combinations do not define 4 different tones or would generate the same 4 tones as other digit combinations do.
+The actual limitation of subscribers were cause by the limited number of available channels.
+</p>
+
 <p>
 4. Release by the mobile station
 <br><br>
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