I am from a telephony background and as voice is migrating to data, i feel i need to fully understand the data side of things from the basics up to the advanced stuff including how and what gateways,firewalls,routers,etc are and what their jobs are.
So my question is how do i go about learning all this stuff?
Can you recommend a good book or web source?
Many Thanks
So my question is how do i go about learning all this stuff?
Can you recommend a good book or web source?
Many Thanks