Краткое Руководство По Установке для Cisco Cisco Unified IP Interactive Voice Response (IVR) 8.0(1)

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Getting Started with Cisco Unified IP IVR, Release 6.0(1)
Chapter 4      Basic Call and Contact Flow Concepts
Understanding How Calls Go Through the Unified CCE System
Warning
If you install CRS with thedefault codec (G.711), your region configuration must allow calls into 
the region assigned to the CTI Ports at G.711. Otherwise, calls across the WAN are forced to G.729 
in the region configuration, which causes the call to fail if there are no hardware transcoding 
resources properly configured and available. 
 See 
Regions Configuration 
 for more information.
  •
 Device Locations. In the event that one or more of the devices are in alocation, if sufficient 
bandwidth is not available, the requested call-control operation will fail.
See 
Location Configuration
 for more information.
  •
 Media Connections.Media connections to the Cisco CRS system are either all G.711 or all G.729. 
This means that the Unified CM region configuration must allow for connections between devices 
and the Cisco CRS server’s CTI Ports with the appropriate Codec. If not, then Transcoder channels 
MUST be configured and available. You do this at the appropriate matching Codec at Cisco CRS 
installation time. 
  •
 Connection path device (Codec). When you create a region, you specify the codec that can be used 
for calls between devices within that region, and between that region and other regions. The system 
uses regions also for applications that only support a specific codec; for example, an application that 
only uses G.711. 
Understanding How Calls Go Through the Unified CCE 
System
This section describes the following:
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Call Flow Control
The Unified ICME system is a major component of the Unified CCE system. Unified ICME provides a 
central control system that directs calls to various human and automated systems, such as Integrated 
Voice Response (IVRs) units [also called Voice Response Units (VRUs)] and Automatic Call 
Distribution (ACD) systems.