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Cisco ASA Series CLI Configuration Guide
Chapter 1 Configuring Cisco Intercompany Media Engine Proxy
Information About Cisco Intercompany Media Engine Proxy
• Cisco Intercompany Media Engine (UC-IME) Bootstrap server—Provides a certificate required
admission onto the public peer-to-peer network for Cisco Intercompany Media Engine.
Figure 1-2 illustrates the components of the Cisco Intercompany Media Engine in a basic deployment.
Figure 1-2 Cisco Intercompany Media Engine Architecture in a Basic Deployment
Basic Deployment
In a basic deployment, the Cisco Intercompany Media Engine Proxy sits in-line with the Internet firewall
such that all Internet traffic traverses the adaptive security appliance. In this deployment, a single Cisco
UCM or a Cisco UCM cluster is centrally deployed within the enterprise, along with a Cisco
Intercompany Media Engine server (and perhaps a backup).
As shown in Figure 1-3, the adaptive security appliance sits on the edge of the enterprise and inspects
SIP signaling by creating dynamic SIP trunks between enterprises.
SRTP
Peer-to-peer
Validation
Outside Enterprise
Inside Enterprise
UC-IME
Bootstrap Server
RTP/SRTP
UC-IME Server
Permiter Security
SIP/SCCP
ASA Enabled with
UC-IME Proxy
DMZ
248760
Cisco UCM Cluster
M
M
M
M
M
UC-IME
Access Protocol
SIP/TLS
TCP/TLS
IP
IP
IP
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