Cisco Cisco TelePresence Video Communication Server Expressway
Additional information
FindMe (VCS Express) Deployment Guide
Page 11 of 18
Additional information
Determining how to overwrite a caller ID with a FindMe ID
VCS can only overwrite the Caller ID with a FindMe ID if:
n
the call signaling passes through the VCS (or VCS cluster) that hosts the FindMe account
n
the VCS can identify a FindMe as the owner of the endpoint caller ID; it can do this if the incoming caller ID
provided in the call matches one of the following:
provided in the call matches one of the following:
l
a FindMe device which is only found in a single FindMe account
l
a single principal FindMe device (if the same device address is associated with more than one FindMe
location).
location).
If either condition is not met, the Incoming caller ID is passed through unchanged.
Principal devices
Principal devices are designed to be key devices for the user who owns them:
n
A device is identified as a principal device if it is the initially configured device when the FindMe account
was created.
was created.
n
Users cannot delete a principal device from their account. Administrators can modify whether a device is a
principal device or not on the
principal device or not on the
Edit principal devices
page (
Maintenance > Login accounts > User
accounts
, select an account, then select Edit principal devices).
FindMe in a VCS cluster
When FindMe is used with a VCS cluster, the FindMe option key must be enabled on every VCS peer in the
cluster. The FindMe database is replicated across all peers in the cluster so that FindMe functionality can be
performed on any peer that a call traverses.
cluster. The FindMe database is replicated across all peers in the cluster so that FindMe functionality can be
performed on any peer that a call traverses.
See VCS Cluster Creation and Maintenance Deployment Guide for more information about VCS clusters.
Microsoft OCS/Lync and the VCS B2BUA
When FindMe is used with a cluster of “OCS/Lync gateway” VCSs, each peer in the cluster registers a
portion of the FindMe users to Microsoft OCS/Lync so that call loading is shared across cluster peers. (Calls
from OCS/Lync to VCS are delivered by OCS/Lync to the VCS that registered the user.)
portion of the FindMe users to Microsoft OCS/Lync so that call loading is shared across cluster peers. (Calls
from OCS/Lync to VCS are delivered by OCS/Lync to the VCS that registered the user.)
See Microsoft OCS 2007, Lync 2010 and VCS Deployment Guide for more information.
FindMe accounts hosted on different VCSs in a network
FindMe accounts can be distributed across multiple VCSs (or VCS clusters), but each individual account can
be hosted on only one VCS (or VCS cluster).
be hosted on only one VCS (or VCS cluster).
For FindMe to overwrite a caller ID with the caller's FindMe ID, the call signaling must pass through the VCS
(or VCS cluster) that hosts the relevant account.
(or VCS cluster) that hosts the relevant account.
Therefore, care must be taken in designing system topologies to ensure that caller ID can always be
overwritten.
overwritten.