Glossary
170 Administering Avaya 9601/9608/9608G/9611G/9621G/9641G IP Deskphones SIP
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Failover Selection of a lower priority call controller to become the active controller,
when the highest-priority (primary) call controller becomes unavailable.
Failback Return to normal operation by selection of the highest-priority (primary) call
controller as the active controller.
H.323 A TCP/IP-based protocol for VoIP signaling. An alternative to SIP for VoIP
signaling. One of the two protocols 9600 Series IP Telephones support.
Monitored
Controller(s)
A SIP Registrar/Proxy server that the deskphone knows about and to which
the deskphone periodically checks IP and SIP connectivity.
OPS Outboard Proxy SIP.
PPM Personal Profile Manager, part of the System Manager platform. PPM is
responsible for maintaining and managing end users’ personal information in
the system.
Presentity An entity which publishes its own presence state.
Primary
Controller
The controller that appears first in the configured controller list.
Proxy Server An intermediary entity that acts as both a server and a client for the purpose
of making requests on behalf of other clients. A proxy server primarily plays
the role of routing, meaning its job is to ensure that a request is sent to
another entity "closer" to the targeted user. Proxies are also useful for
enforcing policy, for example, making sure a user is allowed to make a call. A
proxy interprets, and if necessary, rewrites specific parts of a request
message before forwarding it.
PS Avaya Aura
®
Presence server. Performs presence management (event
composition, aggregation, ACL enforcement) and XMPP IM routing.
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