Enterprise Voice is a complex group of features in Lync Server 2013, and involves a number of aspects that are as follows:
Technological, like the architecture of our deployment and our hardware
Economical, like Lync user licenses or Office 365 fees
Logistical, like the agreements with one or more external providers
Legal, like compliance with local regulations
This chapter focuses on some specific aspects of the flow used to manage a voice call from a user in Lync Server 2013. We can imagine the dialing of a phone number divided in two different phases. The first one is usually called dialing behaviors and has only one objective, that is, to normalize any dialed number until it is compatible with E.164 (or to apply a less used but more precise definition, the RFC3966 standard). Dial plans and normalization rules are used during this phase. The second phase is dedicated to a series of controls to resolve if a call is authorized and what is the best path for it. This is usually called...