Office Communications Server 2007 R2 includes a new Application Server component, which is installed on each Enterprise Edition Front End Server and Standard Edition server. Application Server runs only applications shipped with Office Communications Server—it does not run third-party applications.
Application Server ships with four applications, which extend and enhance the server’s existing voice and conferencing functionality.
Enables enterprise users to use a public switched telephone network (PSTN) phone to dial in to a conference. For details, see New Dial-in Conferencing Feature.
Conferencing Announcement Service
Enables tones to be sounded to announce when users join or leave a conference, and notifications to users when they are muted or unmuted. For details, see New Dial-in Conferencing Feature.
Response Group Service
Enables users to create response groups for the purpose of routing and queuing incoming phone calls to one or more designated agents. For details, see New Response Group Service.
Outside Voice Control
Provides enterprise voice functionality and call control to mobile phones that are not otherwise enabled for enterprise voice. For details, see Enterprise Cellular Telephony Enhancements.