Datasheet

existing PBX systems by providing Remote Call Control (RCC) to control the phone line in order to
receive and make calls using the Communicator 2005 client. No longer are you limited to your desk
phone: If you are away from the office, you can still receive calls made to your office line directly from
the Communicator 2005 client. In addition, once a call is received, you have other telephony features
available, such as call transferring so that you can transfer an incoming call to your mobile phone or
device of choice.
Figure 1-7
Active
Directory
INTERNAL
ACCESS
Resources
Business Unit
AD Groups
LCS Access Proxy
LCS Director
LCS PSTN
Gateway
LCS PSTN
Gateway
Load Balancer
LCS Enterprise Edition Pool Servers
LCS Back-End SQL Servers
LCS IM
Archiving Server
Enterprise CA
Global Catalog
Server
Business Unit
AD Users
Certificate
Certificate
Certificate Certificate Certificate
Certificate
IM Archiving
Agent
MTLS MTLS
CLUSTERED
MTLS
EXTERNAL
ACCESS
$
TLS
www
15
Introducing Microsoft Unified Communications
04_773212 ch01.qxp 5/25/06 6:59 PM Page 15