i am doing a voip security consulting for a big client of mine.
I want to recomend to implement call encryption. the client has 6 cisco call manager version 188.8.131.520-16 it is an appliance. according to a menual im reading call encryption can be done only if call manager is installed on windows 2000/2003 is it true?? i foud a menual named secoview.pdf in the internet.
can someone also please send me a good hardgning menual for all the Voip installation ? the client also has as asterisk version Asterisk 1.4.20-1 (toxbox) in the dmz.
thanks a lot for your help.