Chapter 6. Design of Call-Processing Infrastructure and Applications

This chapter provides a detailed explanation of the tasks and processes involved in designing a call-processing infrastructure and IP Telephony (IPT) applications that meet the requirements of XYZ, Inc. Topics covered in this chapter include the following:

This chapter uses information collected in the design questionnaires listed in Appendixes D, “IPT Design Phase: IP Phone Selection Questionnaire,” through F, “Ordering T1/E1 PRI from the Carrier Questionnaire”. It also uses the information collected about XYZ in Chapter 3, “Large-Scale Enterprise Requirements for IP Telephony.” To review the high-level architecture ...

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