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| author | Andreas Eversberg <jolly@eversberg.eu> | 2016-12-06 17:45:48 +0100 |
|---|---|---|
| committer | Andreas Eversberg <jolly@eversberg.eu> | 2016-12-06 17:46:12 +0100 |
| commit | eed826387a791d3e75d05e72131e0141110d264d (patch) | |
| tree | 1d46874d697cd75689c5b45bbaea6383a49706b4 /docs/a-netz.html | |
| parent | 27c6e3d860aed41f6ed44997b1410b229f2bd53f (diff) | |
work on docs
Diffstat (limited to 'docs/a-netz.html')
| -rw-r--r-- | docs/a-netz.html | 6 |
1 files changed, 6 insertions, 0 deletions
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 @@ -176,6 +176,12 @@ 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> If the user hangs up, the mobile station transmits a continuous 1750 Hz release tone. |