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Cisco
CallManager |
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Cisco®
IP Communications is a comprehensive system of powerful,
enterprise-class solutions, including IP telephony,
unified communications, IP video and audio conferencing,
and customer contact. It helps organizations realize
business gains by improving operational efficiencies,
increasing organizational productivity, and enhancing
customer satisfaction. Cisco CallManager is the software-based
call-processing component of the Cisco enterprise IP
telephony solution; it is enabled by Cisco AVVID (Architecture
for Voice, Video and Integrated Data).
Cisco CallManager software extends enterprise telephony
features and capabilities to packet telephony network
devices such as IP phones, media processing devices,
voice over IP (VoIP) gateways, and multimedia applications.
Additional data, voice, and video services such as unified
messaging, multimedia conferencing, collaborative contact
centers, and interactive multimedia response systems
interact with the IP telephony solution through Cisco
CallManager open telephony application programming interfaces
(APIs). Cisco CallManager is installed on Cisco 7800
Series media convergence servers (MCSs) and selected
third-party servers. Cisco CallManager software is shipped
with a suite of integrated voice applications and utilities,
including the Cisco CallManager Attendant Console-a
software-only manual attendant console; a software-only
ad-hoc conferencing application; the Bulk Administration
Tool (BAT); the CDR Analysis and Reporting (CAR) tool;
the Real-Time Monitoring Tool (RTMT); a simple, low-density
Cisco CallManager Auto Attendant (CM-AA); the Tool for
Auto-Registered Phone Support (TAPS); and the IP Manager
Assistant (IPMA) application.
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 FEATURES AND BENEFITS |
| Cisco
CallManager Version 4.1 provides a scalable, distributable,
and highly available enterprise IP telephony call-processing
solution. Multiple Cisco CallManager servers are clustered
and managed as a single entity. Clustering multiple call-processing
servers on an IP network is a unique capability in the
industry, and highlights the leading architecture provided
by Cisco AVVID. Cisco CallManager clustering yields scalability
of from 1 to 30,000 IP phones per cluster, load balancing,
and call-processing service redundancy. By interlinking
multiple clusters, system capacity can be increased up
to one million users in a 100+ site system. Clustering
aggregates the power of multiple, distributed Cisco CallManagers,
enhancing the scalability and accessibility of the servers
to phones, gateways, and applications. Triple call-processing
server redundancy improves overall system availability.
The benefit of this distributed architecture is improved
system availability, load balancing, and scalability.
Call Admission Control (CAC) helps ensure that voice quality
of service (QoS) is maintained across constricted WAN
links, and automatically diverts calls to alternate public
switched telephone network (PSTN) routes when WAN bandwidth
is not available. A Web interface to the configuration
database enables remote device and system configuration.
HTML-based online help is available for users and administrators.
The enhancements provided by Cisco CallManager Version
4.1 offer improved security, interoperability, capability,
supportability, and productivity as well enhancements
to video telephony introduced in Cisco CallManager 4.0.
Cisco CallManager 4.1 has many security features that
give Cisco CallManager servers and IP phones the ability
to verify identity of the devices or servers that they
communicate with, ensure the integrity of data they are
receiving, and provide privacy of communications via encryption.
The devices that can participate in secure communications
now includes the Cisco IP Phone 7940G, IP Phone 7960G,
IP Phone 7970G, and Media Gateway Control Protocol (MGCP)
gateways. Secure administration and troubleshooting is
now capable with CallManager 4.1 using HTTPS. Improvements
in the CallManager Q.SIG signaling interface expands the
range of functions with which Cisco CallManager can connect
to other Q.SIG compatible systems. Features like path
replacement and call completion allow Cisco CallManager
to integrate with other Q.SIG compatible systems closer
than ever before. H.323 Annex M.1 support now gives users
improved feature transparency between CallManager clusters.
Enhancements to the CallManager APIs (AXL, JTAPI, TSP)
provide customers and 3rd party vendors increased ability
to develop improved applications that can be integrated
with CallManager and IP Phones. Other key features provided
by Cisco CallManager 4.1 include call coverage, time-of-day
routing and restrictions, forced authorization codes (FAC)
and client matter codes (CMC) and enhancements for Video
Telephony that was provided in Cisco CallManager 4.0.
New administration features such as Cisco Unity User Integration
allow a CallManager system administrator to easily configure
a Cisco Unity voice mail box while configuring an IP phone
for that user. |
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