What about the user’s highly personalized services such as
address lists, buddy lists, and speed dials? SIP preference tools
features can make these personal services mobile. For exam-
ple, Avaya’s Personal Profile Manager provides a centralized
service that communicates with SIP endpoints to receive,
store, and distribute contact lists, access control lists for user
presence, and device parameters such as speed dials and fea-
ture button mappings — to the active SIP endpoint being used.
A Web-based interface, the SIP Personal Information Manager,
enables users to securely manage and view their profile and
device information using any standard Web browser. The user
simply logs in through the endpoint; after the user is authenti-
cated, his stored data is securely downloaded into the device
to create a customized user environment.
SIP Communications For Dummies, Avaya Custom Edition
32
Keeping pace with the mobile user
SIP enables seamless mobile
communications — anytime, anywhere.
For example, suppose a bank executive
adds a new contact to her personal
profile and assigns it a hot button or
speed-dial. She then initiates a SIP
call through the internal network
using her dual-mode cell phone to
check voice mail. While still listening
to messages, she walks out of the
office to her car — and the call
switches on the fly to her cellular
service provider network.
She then arrives at headquarters still on
the cell phone. The intelligent network
using SIP detects her presence and
switches the call back to the company’s
wireless network automatically. The
executive then finds a mobile user cubi-
cle with a PC and softphone application;
upon authentication, her entire contact
list and phone features are downloaded.
She then checks her buddy list, sees via
presence that her new contact is online
and available for a phone call, and she
initiates a connection. Her contact is out
in the operations center, so the net-
work intelligently forks the connection
over to his PDA (which contains a SIP
telephony client), and the call begins.
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