More info.

diff --git a/blog/data/2015-05-01-telefonsamtalelagring.txt b/blog/data/2015-05-01-telefonsamtalelagring.txt
index 44fcdc231f5630d7ebc46bc85790f2cd748ed5f0..10b3d758d15c125fc3ef553cc0a630027f2ea414 100644 (file)
--- a/blog/data/2015-05-01-telefonsamtalelagring.txt
+++ b/blog/data/2015-05-01-telefonsamtalelagring.txt
@@ -1,6 +1,6 @@
 Title: What would it cost to store all phone calls in Norway?
 Tags: english, personvern, surveillance
-Date: 2015-05-01 18:50
+Date: 2015-05-01 19:30
 
 <p>Many years ago, a friend of mine calculated how much it would cost
 to store the sound of all phone calls in Norway, and came up with the
@@ -15,15 +15,17 @@ and the cost of data storage.</p>
 the 2012 numbers are from
 <a href="http://www.nkom.no/aktuelt/nyheter/fortsatt-vekst-i-det-norske-ekommarkedet">a
 NKOM report</a>, and I got the 2013 numbers after asking NKOM via
-email.</p>
+email.  I was told the numbers for 2014 will be presented May 20th,
+and decided not to wait for those, as I doubt they will be very
+different from the numbers from 2013.</p>
 
 <p>The amount of data storage per minute sound depend on the wanted
 quality, and for phone calls it is generally believed that 8 Kbit/s is
-enough.  Se for example a
+enough.  See for example a
 <a href="http://www.cisco.com/c/en/us/support/docs/voice/voice-quality/7934-bwidth-consume.html#topic1">summary
-from Cisco</a> for some alternatives.  8 Kbit/s is 60 Kbytes/min, and
-this can be multiplied with the number of call minutes to get the
-storage requirements.</p>
+on voice quality from Cisco</a> for some alternatives.  8 Kbit/s is 60
+Kbytes/min, and this can be multiplied with the number of call minutes
+to get the storage requirements.</p>
 
 <p>Storage prices varies a lot, depending on speed, backup strategies,
 availability requirements etc.  But a simple way to calculate can be