Datasheet

Telephony Integration
Converged communications is becoming a necessity in today’s marketplace. With Live Communications
Server 2005 with Service Pack 1 and Microsoft Office Communicator 2005, organizations now have the
ability to integrate telephony features, Instant Messaging, and Audio/Video communications all within
one application. Integration with new and legacy PBX systems and PSTN services is provided as an out-
of-the-box feature with minor configuration.
PBX Integration
LCS supports the Computer Supported Telecommunications Applications (CSTA) over SIP protocol,
which is accepted by most PBX providers. For legacy PBX applications, LCS requires a third-party solu-
tion such as the Genesys GETS service, which translates SIP over CSTA communications to legacy PBX
systems. Newer PBX systems will support SIP natively without the need for this SIP/CSTA bridge, but
most companies are reluctant to upgrade their PBX systems because they have been in place for decades.
Therefore, as a consultant, when deploying LCS for a customer, it is important to have some familiarity
with these third-party solution providers (e.g., Genesys, Nortel, Mitel, and others).
When integrating your LCS environment with a legacy or new PBX system, Communicator 2005 is
enabled with Remote Call Control (RCC), which provides individuals with the ability to control their
desk phone to accept, return, and forward phone calls directly from the application.
PSTN Integration
Where LCS PBX integration provides local calling features within Communicator 2005, PSTN integration
with LCS provides connectivity with PSTN services or 1-800 calling services such as MCI. LCS uses the
LCS PSTN Gateway to transfer and translate data between the internal LCS environment and the PSTN
service to provide seamless integration.
When PSTN integration is enabled, Communicator 2005 enables individuals to create Live Meeting Web
conferences and participate in conference calls directly from one client. This combined solution provides
ease of use for a Communicator 2005 user and a truly converged communication client application.
Microsoft Office Communicator 2005 Web Access
To provide customers with the capability to deploy Microsoft Office Communicator to almost any desk-
top, Microsoft released a web-accessible client to LCS with the Microsoft Office (r) Communicator 2005
Web Access (CWA) application. CWA is especially useful for organizations that have tight control over
their users’ desktop applications, and it can reduce deployment time frames dramatically. CWA provides
Instant Messaging and presence features only, and it does not enable the advanced telephony integration
and sharing features that are available in the desktop client.
Figure 1-19 depicts the CWA client application.
Microsoft Office Communicator 2005 Mobile
Extending Microsoft Office Communicator 2005 even further, the Microsoft Office Communicator 2005
Mobile client, known by its nickname “CoMo,” provides client access to LCS via a mobile device. With
CoMo, contacts can take their presence on the road and never skip a beat. CoMo provides contacts with
the IM and presence features similar to that of the CWA client so that a contact can take part in IM ses-
sions when needed.
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