SIP goes beyond ENUM

by offering additional features:

User preferences
Personal/Service/… mobility^†
Easy and secure updating of information by the end-user

A given User Agent need not directly implement call routing, LDAP lookup, …, but can instead utilize a default SIP outgoing proxy (which in turn does the work).

Call Processing Language (CPL) can be used to support rapid changes in user preferences (see Call Processing Language (CPL) later in these notes)

^†See SIP Mobility later in these notes

Transcript

[slide235] It turns out SIP goes way beyond ENUM, it includes things like call number processing. As we mentioned earlier, user preferences, services, etc.