Telephony Integration Converged communications is becoming a necessity

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 outof- 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 solution 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 desktop, 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 sessions when needed. 28 Chapter 1
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