Trusted Relay Point Overview
The logic utilized that Cisco Unified Communications Manager uses to invoke the TRP.
The actual device that is invoked as the anchor point of the call. For example, an Media Termination Point (MTP) device can act as that anchor point.
Cisco Unified Communications Manager provides a configuration parameter for individual phone devices. This parameter invokes a TRP for any call to or from that phone. The system utilizes the media resource pool mechanisms to manage the TRP resources. The media resource pool of that device must have an available device that is to be invoked as a TRP.