IP Telephony Using CallManager Express Lab Portfolio provides a hands-on approach to learning the basic principles of voice over IP (VoIP) to build a voice-enabled network for the small to medium-sized business. As you work through the 51 labs in the book, you learn how to deplo…
Asterisk: the definitive guide
Design a complete Voice over IP (VoIP) or traditional PBX system with Asterisk, even if you have only basic telecommunications knowledge. This bestselling guide makes it easy, with a detailed roadmap that shows you how to install and configure this open source software, whether …
Microsoft voice and unified communications
"Microsoft Voice and Unified Communications is essential reading for anyone using-or considering-Microsoft's range of VoIP options, from consumers to small business owners to enterprise customers."--Xuedong Huang, General Manager, Microsoft Research Communications, Innovation Ce…