[asterisk-users] Capture Media IP in CDR (CDR)

jg webaccounts at jgoettgens.de
Sun Oct 13 15:25:33 CDT 2013


I doubt that a media IP would really help, because there are proxies out there. If you need this 
kind of monitoring, then there are probably better ways to take care of this and they are 
independent of Asterisk.

What you could do is to tap any traffic in the background, e.g. with tcpdump using the -G option 
and automatically delete the files after a certain period, unless there is a reason to keep the 
data. The pcap trace would contain a lot of relevant information, even if the traffic is 
encrypted (like timing data). Depending on national or local laws this might be even a more 
serious crime than threatening a school. It could still be justified to tap the traffic, like it 
is for other public authorities, but you would have to find out yourself whether you are or the 
school is allowed to do this.

Actually, I tend to think that it is the school's task to enforce a specific security and 
surveillance concept and this also applies particularly to their IT structure. You are certainly 
not in the position to decide whether you should monitor anything unless it is part of your 
contract.

Besides this, it is easy to store any kind of information along with classical CDR data. Just 
search for "adaptive ODBC", or read the Asterisk book.

jg



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