Contents
Chapter 1 Identifying Issues in a Multisite Deployment
Multisite Deployment Challenge Overview
Overlapping and Nonconsecutive Numbers
Fixed Versus Variable-Length Numbering Plans
Variable-Length Numbering, E.164 Addressing, and DID
Detection of End of Dialing in Variable-Length Numbering Plans
Optimized Call Routing and PSTN Backup
Issues Caused by Different PSTN Dialing
Chapter 2 Identifying Multisite Deployment Solutions
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