Voice-Enabling the Data Network : H. 323, MGCP, SIP, QoS, SLAs, and Security by James Durkin
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VoIP is significantly reducing the cost of transmitting telephone calls and enabling small companies to enter the $50 billion marketplace. Many telcos and ISPs are entering this market while VoIP is still in its infancy. As a result, there is an urgent need for telco and ISP engineers to learn this new technology. This book will assist telco engineers to transition to I P networking with a focus on VoIP networks.