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Cisco ICS 7750 System Description
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Chapter 4 Summary of System Software Features
Cisco CallManager
System Capabilities
The following is a summary of Cisco CallManager system capabilities:
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Call routing using Alternate Automatic Routing (AAR), Automated Route
Selection (ARS), and automated bandwidth selection
•
Attenuation/gain adjustment per device, comfort noise generation, silence
suppression, and voice activity detection
•
Codec support for automated bandwidth selection
•
Digit analysis and call treatment, outbound call blocking
•
Unified dial plan, dial plan partitioning for multi-tenants and toll restriction
•
Distributed call processing
•
H.323 interface to selected devices and interface to H.323 gatekeeper for call
admission control
•
Hot line and private line, automated ringdown (PLAR)
•
Off-premises station (OPX)
•
Music on Hold (MOH)
•
Hunt groups
•
Out-of-band dual tone multifrequency (DTMF) signaling over IP
•
Redundancy and automated failover on call-processing failure
•
Survivable Remote Site Telephony (SRST)
•
Shared resource/application management and configuration for transcoder,
conference bridge
•
Simplified North American Numbering Plan (NANP) and non-NANP support
•
Third-party applications that support the following:
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Broadcast paging—through Foreign Exchange Station (FXS)
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SMDI for message waiting indication
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Hook-flash support on selected FXS gateways
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TAPI 2.1 (Telephony Applications Programing Interface) service
provider (TSP) interface