Datasheet

Cisco Preferred Architecture for
Midmarket Collaboration PAGE 32
Applications
Cisco Unity Connection
Cisco Unity Connection enables users to access and manage voice messages in a variety of ways, such as by email
inbox, web browser, Cisco Jabber, Cisco Unified IP Phone, TelePresence, smartphone, tablet, and many more. Users can
interact with Unity Connection either through phone keypad keys or through voice commands that they speak into the
phone handset, headset, or speakerphone.
Recommended Deployment
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Deploy two Unity Connection servers for each Cisco Unified CM cluster to provide high availability and redundancy.
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Use SIP trunks to integrate Unity Connection with Unified CM. Configure two SIP trunks, one for each Unity
Connection server in a pair.
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Enable the speech-activated voice command interface to maximize productivity of mobile workers.
Benefits
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Users can access the voicemail system and retrieve their voice messages by using their IP phones, mobile devices,
and various email client applications with either a dialed number or a SIP URI.
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Cisco Unity Connection allows users to customize personal settings from a web browser.
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Cisco Unity Connection offers a natural and robust speech-activated user interface that allows users to browse and
manage voice messages using simple and natural speech commands.
Note: If full redundancy is not required, a single server may be deployed without loss of functionality.
Deployment Best Practices
Cisco Unity Connection supports a cluster configuration in active/active mode to provide both high availability and
redundancy. A Unity Connection cluster consists of a maximum of two nodes, one publisher and one subscriber in an
active/active deployment (Figure 17). If one Unity Connection node fails, the other active node in the cluster handles all
the calls, IMAP requests, and HTTP requests for the Unity Connection cluster. Each server in the Unity Connection cluster
must have enough voice messaging ports to handle all calls for the cluster.
Figure 17. Cisco Unity Connection Cluster