Chapter 6, "Design of Call Processing Infrastructure and Applications," to review the example of how the information collected in this questionnaire for XYZ, Inc., was used in its IPT network design.
The following is an outline of the sections in the IPT Requirement Analysis Questionnaire:
IP Telephony Deployment Model
Codec Selection
Legacy Voice-Mail Integration Requirements
Legacy PBX Integration Requirements
Sizing the CallManager Cluster
Branch Office IPT Requirements
Class of Restriction Requirements
Call-Routing and Dial Plan Requirements
Sizing the PSTN/Gateway Trunks
Power Requirements (Per Site/Per Switch Specific)
Call Admission Control Considerations
Corporate Directory Requirements
Conferencing, Transcoding, and MTP Requirements for Central Sites
Music on Hold Requirements
Some sections might not be applicable to the network that you are designing, so skip any such sections.