Securing VPN, Wireless and VoIP Network

[Guest]

Hello, what are the steps in Securing VPN, Wireless and VoIP Network??

 

[hang-the-9]

Something that will fit on here: turn off electricity to the network equipment.

For something that's probably usefull: http://www.google.com/search?hl=en&source=hp&q=network+security+books&aq=f&aqi=g1g-m4&aql=&oq=&gs_rfai=CrTd45n_ATN6BFaK0gAT018XiBwAAAKoEBU_Q2klN