Chapter 5 Summary of Software Applications Features
Internal Software Applications
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Cisco ICS 7750 System Description
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Figure 5-3 Cisco IP Telephony Solution Components
As Figure 5-3 shows, a Cisco IP Telephony Solution system has these main
components:
• Gateway—Connects the enterprise IP telephony network to the PSTN and to
other private telephone systems, such as a PBX. In the Cisco ICS 7750, the
MRP provides the gateway function.
• Cisco CallManager server—Provides the features for the IP phones, manages
gateways, provides failover and redundancy service for the telephony system,
and directs VoIP traffic to the CRA system. In the Cisco ICS 7750, the
Cisco CallManager server runs on an SPE.
• Cisco IP Telephony Directory—Stores configuration information and CRA
application scripts in an LDAP directory. The subdirectory that stores CRA
scripts is called the Repository. Storing application scripts and configuration
information in an LDAP directory allows loading application scripts on any
CRA server in the network. The Repository keeps one backup version of each
script for recovery purposes.
Cisco
CallManager
Gateway
CRA Application
server
Java-compliant
browser
Administration
Cisco CRA
Editor
PSTN
65803
Cisco IP
Telephony
Directory
Enterprise
database
IP
IP ICD Agent Desktop
