Allan Sulkin has the unique ability to explain complex systems in easily understandable terms "- Joe Licata, President, Siemens Enterprise Networks." A welcome addition to the bookshelf for anyone interested in developing IP-PBX system. He is uniquely qualified to articulate the very complex subject that PBX and IP telephony '- Kanji Suzuki, former EVP of NEC America and current president and CEO of NEC Infrontia, Inc.The most efficient (and economical) way to bring the system to a communications company The digital age in this guide, written by leading analysts in the market space. In the "PBX Systems for IP Telephony", Allan Sulkin, consultant and advisor to Avaya, Siemens, Cisco, NEC, Nokia and other world-class companies, evaluating the technology, markets, and best practices for enterprise voice systems, messaging, and customer contact center . Do you need to enable IP-PBX system for small business, making complex choices for advanced call center, or acquire the expertise to integrate various communications systems into a state-foundation-the-art-to-business e vision, "PBX Systems for IP Telephony "should be your first choice.Here s' why: no one knows the PBX system and the market better than the author, and nothing better to explain them; it supplies a comprehensive source of information on beans-and-bolts on cost, performance, risk, and real world considerations are difficult to study, you gain insight into potential strengths and weaknesses of the next generation PBX system, you will consult with the consultant for system designers to practical advice on systems to suit your needs and your future, and not no clue-conscious business user-friendly or more anywhere to converging your voice systems to IP-based system data.