文件名称：语音通讯 VoIP book
文件大小：409KB
文件格式：RAR
更新时间：2012-08-12 04:24:41
VoIP IP
If you are a manager who needs to decide whether to make the switch to VoIP, or if you are an IT person looking to help your boss make an informed decision about integrated networking, this book provides an excellent place for you to begin. This book also provides an excellent starting place for end users who are new to VoIP.
【文件预览】：
VOIP.pdf