Cisco Cisco Agent Desktop 8.5 Guia Do Utilizador
Cisco IP Phone Agent User Guide
26
June 2007
Fault Tolerance
The IP Phone Agent service is fault tolerant if there are two or more IP Phone Agent
servers. If one server fails, the other server takes over. If the primary server fails, you
are automatically logged out and you must manually log in to the secondary server.
servers. If one server fails, the other server takes over. If the primary server fails, you
are automatically logged out and you must manually log in to the secondary server.
Redundancy
In a redundant system, your IP Phone Agent login screen displays two or more IP
Phone Agent services. Only one service can be active at any one time. If you attempt
to log in to an inactive service, an error message appears, directing you to select
another service (see
Phone Agent services. Only one service can be active at any one time. If you attempt
to log in to an inactive service, an error message appears, directing you to select
another service (see
).
Figure 13.
Error message received when attempting to log into an inactive service.
Failover
If one of the Cisco Agent Desktop (CAD) services fails in a redundant system, the
backup service takes over, usually within one minute after the primary service fails.
backup service takes over, usually within one minute after the primary service fails.
If the IP Phone Agent service that you are logged into fails, you are logged out of the
Chat service and you no longer appear as an agent in Cisco Supervisor Desktop. You
are not notified, however, until one of the following events occurs:
Chat service and you no longer appear as an agent in Cisco Supervisor Desktop. You
are not notified, however, until one of the following events occurs:
■
you make a request from your IP phone, by pressing the Update soft key or by
changing your agent state, for example
changing your agent state, for example
■
the IP Phone Agent screen is refreshed
At this time, the following error message appears on your IP phone screen: “Unable to
connect to the IPPA service.” This message indicates that your IP phone is no longer
communicating with the IP Phone Agent service you logged into.
connect to the IPPA service.” This message indicates that your IP phone is no longer
communicating with the IP Phone Agent service you logged into.
14:23 02/15/04
2101
SERVICES
This IP Phone service is
currently offline. Please select
another service.
Make Your Selection...
Exit