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102-4
Cisco Unified Communications Manager Administration Guide
OL-18611-01
Chapter 102 Common Device Configuration
Common Device Configuration Settings
Use Trusted Relay Point Check this check box to enable the devices that associate with this common
device configuration to use a trusted relay point.
A Trusted Relay Point (TRP) device designates an MTP or transcoder device
that is labeled as Trusted Relay Point.
Cisco Unified Communications Manager inserts a TRP for an endpoint if the
Use Trusted Relay Point check box is checked for the endpoint or for the
common device configuration with which the endpoint associates. The
endpoint device can comprise any device that terminates media, including
SIP, H.323, MGCP, and SCCP devices, such as phones that are running
SCCP, CTI devices, MoH servers, annunciators, and conference bridges.
If the Use Trusted Relay Point setting of a device specifies On or Off, the
device setting overrides the Use Trusted Relay Point setting from the
common device configuration with which the device associates.
Cisco Unified Communications Manager places the TRP closest to the
associated endpoint device if more than one resource is needed for the
endpoint (for example, a transcoder or RSVPAgent).
If both TRP and MTP are required for the endpoint, TRP gets used as the
required MTP. See the
“TRP Insertion in Cisco Unified Communications
Manager” in the Cisco Unified Communications Manager System Guide for
details of call behavior.
If both TRP and RSVPAgent are needed for the endpoint, Cisco Unified
Communications Manager first tries to find an RSVPAgent that can also be
used as a TRP.
If both TRP and transcoder are needed for the endpoint, Cisco Unified
Communications Manager first tries to find a transcoder that is also
designated as a TRP.
Refer to the “Trusted Relay Point” section and its subtopics in the Media
Resource Management chapter of the Cisco Unified Communications
Manager System Guide for a complete discussion of network virtualization
and trusted relay points.
Table 102-1 Common Device Configuration Settings (continued)
Field Description