Cisco Call Manager Overview
Cisco Call Manager

The main role of Call Manager is the extension of telephony features and functions to IP or packet-based telephony and devices in an enterprise setting. Packet telephony includes several devices such as: IP phones, media processing devices, gateways, and multimedia applications. Additionally, CallManager implements – via Application Programming Interface (API) – other sophisticated features including multimedia conferencing. for the following:
Call processing: telephony call processing that is extended to IP based telephony; includes origination, termination, and routing calls to the correct destination. Call processing collects telephone and customer related (statistical) data in an enterprise and take part in the billing process.[spacer][spacer]
Signaling: supports call setup and teardown in an IP telephony setup.
Cisco CallManager offers users with a dial plan that is scalable and configurable. Users are able to use CallManager for call routing as well as administering phone features such as: conference, speed dial, or call forward.
For storing user information, Cisco CallManager has a database repository. So, it is easy for the CallManager to validate a user locally. This is needed for and used in conjunction with the Contact Center. In addition, Cisco CallManager facilitates directory synchronization for managing users in a centralized manner.
Other unique features are: Offering of API that is used for external applications such as soft IP Phone, simple provisioning scheme, easy maintenance, backup tools, and restoring tools along with a sophisticated disaster recovery (DR) system. The later can be very handy in updating call details record (CDR), for example.
Cisco Call Manager is a software product. An enterprise must install it on Cisco server (called Cisco Media Convergence Servers or MCS, 7800 Series ) or on server platforms that have been approved by Cisco.
Cisco Call Manager Benefits for an enterprise:
- User-friendly communications increase productivity;
- Unified communication (voice, video and instant messaging) for effective work;
- Enhanced collaboration with simple click to initiate a video conferencing call.
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Cisco Call Manager