A media resource is a software-based or hardware-based entity that performs media processing functions on the voice streams to which it is connected. Media-processing functions include mixing multiple streams to create mixed, unicast output streams (conferencing), passing the stream from one connection to another (Media Termination Point), converting the data stream from one compression type to another (transcoding), streaming voice progress tones (annunciation), and music on hold.
Every Cisco CallManager contains a software component called a Media Resource Manager (MRM) that communicates with MRMs on other Cisco CallManager servers. The MRM locates a media resource to connect the media streams and to complete the feature. The MRM manages the following media resource types:
Note
To act as a Media Resource Manager, you must activate the Voice Media Streaming Application service on the Cisco CallManager server. This service is discussed in detail later in this chapter.
Your Cisco CallManager servers can also participate in the media-processing functions in the cluster. After Cisco CallManager is installed, you must activate these two Cisco CallManager services:
To activate the required services in Cisco CallManager, access the administration web page and choose Application > Cisco CallManager Serviceability. In the Serviceability window, choose Tools > Service Activation. You can activate the services on any server that you choose.
Conference Bridge Resources |
Part I: Cisco CallManager Fundamentals
Introduction to Cisco Unified Communications and Cisco Unified CallManager
Cisco Unified CallManager Clustering and Deployment Options
Cisco Unified CallManager Installation and Upgrades
Part II: IPT Devices and Users
Cisco IP Phones and Other User Devices
Configuring Cisco Unified CallManager to Support IP Phones
Cisco IP Telephony Users
Cisco Bulk Administration Tool
Part III: IPT Network Integration and Route Plan
Cisco Catalyst Switches
Configuring Cisco Gateways and Trunks
Cisco Unified CallManager Route Plan Basics
Cisco Unified CallManager Advanced Route Plans
Configuring Hunt Groups and Call Coverage
Implementing Telephony Call Restrictions and Control
Implementing Multiple-Site Deployments
Part IV: VoIP Features
Media Resources
Configuring User Features, Part 1
Configuring User Features, Part 2
Configuring Cisco Unified CallManager Attendant Console
Configuring Cisco IP Manager Assistant
Part V: IPT Security
Securing the Windows Operating System
Securing Cisco Unified CallManager Administration
Preventing Toll Fraud
Hardening the IP Phone
Understanding Cryptographic Fundamentals
Understanding the Public Key Infrastructure
Understanding Cisco IP Telephony Authentication and Encryption Fundamentals
Configuring Cisco IP Telephony Authentication and Encryption
Part VI: IP Video
Introducing IP Video Telephony
Configuring Cisco VT Advantage
Part VII: IPT Management
Introducing Database Tools and Cisco Unified CallManager Serviceability
Monitoring Performance
Configuring Alarms and Traces
Configuring CAR
Using Additional Management and Monitoring Tools
Part VIII: Appendix
Appendix A. Answers to Review Questions
Index