Product Description: A much-needed guide through the thicket of conflicting IP telephony technologies.-Scott Bradner Convergence of the Internet and the Public Switched Telephone Network (PSTN) makes possible a wide range of new telecommunications services...read more (view table of contents, read Amazon.com's description)

Product Description: Now you can capitalize on all the power and versatility of Intelligent Network (IN) technology, which frees you from previous network constraints, allowing you to provide customized user and carrier services. Written by four IN experts from AT&T and Bell Labs, this concise guide to the international IN standards will help you navigate the comprehensive ITU standards documents...read more (view table of contents, read Amazon.com's description)