A SERVICE OF

logo

Icons Used in This Book
Throughout this book, I occasionally use icons to call atten-
tion to material worth noting in a special way. Here is a list of
the icons along with a description of each:
Some points bear repeating, and others bear remembering.
When you see this icon, take special note of what you’re
about to read.
This icon indicates technical information that is probably
most interesting to IT professionals.
If you see a tip icon, perk up — you’re about to find out how
to save some aggravation.
Where to Go from Here
No matter where you are in your SIP project, always keep
your eye on the big picture. Avaya has keen vision and lead-
ership in the communications industry. You can learn a lot
from this book, but a lot more from Avaya professionals. Turn
the page and discover for yourself why Avaya is one of the
leaders in converged voice and data environments powered
by SIP.
4
SIP Communications For Dummies, Avaya Custom Edition
04_041498 intro.qxp 3/16/06 5:52 PM Page 4
SIP guide