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Presence
TANDBERG VIDEO COMMUNICATIONS SERVER ADMINISTRATOR GUIDE
Enabling and Disabling Presence Services
Presence Services (i.e. the Presence Server and the Presence User Agent) are both disabled by default.
These services can be enabled and disabled separately from each other, depending on the nature of your deployment.
PUA
Enabled
If the PUA is enabled, it will publish presence information for all locally registered endpoints, whether or not those endpoints are also publishing their own presence information. Information published by the PUA will be routed to a Presence Server acting for the endpoint’s domain. This could be the local Presence Server, or (if this is disabled) a Presence Server on another system that is authoritative for that domain.
Disabled
If the PUA is disabled, only those endpoints that support presence will publish presence information. No information will be available for endpoints that do not support presence.
The recommended configuration for a
VCS Expressway when acting as a traversal server for a VCS Control is to
enable the PUA and disable the Presence Server on the VCS Expressway, and enable the Presence Server on the VCS Control. This will ensure that all PUBLISH messages generated by the PUA are routed to the VCS Control.
Presence Server
Regardless of whether or not the Presence Server is enabled, the VCS will still continue to receive PUBLISH messages if they are sent to it from any of the following sources:
•locally registered endpoints that support presence
•the local PUA (if enabled)
•remote SIP Proxies
Enabled
If the local Presence Server is enabled, it will process any PUBLISH messages intended for the SIP domains for which the local VCS is authoritative. All other PUBLISH messages will be proxied on in accordance with the VCS’s SIP routing rules.
Disabled
If the local Presence Server is disabled, the VCS will proxy on all PUBLISH messages to one or more of its neighbor zones in accordance with its locally configured call processing rules. The local VCS will do this regardless
of whether or not it is authoritative for the presentity’s domain. If one of these neighbors is authoritative for the domain, and has a Presence Server enabled, then that neighbor will provide presence information for the presentity.
We recommend that if you have a
deployment with two or more VCSs neighbored together, you enable the
presence server on just one VCS. This will ensure a central source of information for all presentities in your network.
To enable and disable the Presence Server and Presence User Agent:
•Applications > Presence
You will be taken to the Presence page.
•xConfiguration Applications Presence
SIP SIMPLE Presence Server |
| SIP SIMPLE Presence User |
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For information about how Presence works within a VCS cluster, see the Clustering and Presence section.
Introduction | Getting Started |
| Overview and |
| System |
| VCS |
| Zones and |
| Call |
| Bandwidth |
| Firewall |
| Applications |
| Maintenance |
| Appendices |
| Status |
| Configuration |
| Configuration |
| Neighbors |
| Processing |
| Control |
| Traversal |
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