Chapter 9
Using VoIP on the Internet
In This Chapter
Understanding how your choice of network affects QoS
Examining protocols
Securing your network with firewalls
Making the Intranet accessible
Connecting with a virtual private network
The Internet is often referred to as a network of networks. The fact of the matter is that the Internet is just another network, albeit with an enormous and global reach. You can access the Internet through the public switched network (PSTN), your wireless personal digital assistant (PDA), or your WiFi notebook at the coffee shop nearest you. You can use your broadband link to access data, voice, and video at home. Your company can access the Internet through any of the dedicated transport lines. (Chapter 4 covers all Internet access network types.) Slow-speed, high-speed, or ultra-high-speed avenues of access can all work simultaneously to support millions of users accessing some portion of the Internet somewhere in the world.
No other network in ...
Get VoIP For Dummies now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
