Cisco Cisco Agent Desktop 8.0 Betriebsanweisung

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Fault Tolerance
November 2006
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Fault Tolerance
Redundancy
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. When the initial server fails, you 
are logged out, and you must manually log in to the other server.
In a redundant system, your IP Phone Agent login screen will display 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, you will receive an error message to try another service 
(see 
Figure 12.
Error message received when attempting to log in to an inactive service.
Failover
In the event a CAD service fails, in a redundant system the backup service takes over, 
usually within one minute of the service failure. 
Data at the time of a service failure can be lost. For instance, if the Enterprise service 
fails, enterprise data might be lost between the time the data is sent and when the call 
is delivered to the agent. 
If the connection to the CTI service is lost, you will also lose the IP Phone Agent 
service. However, if you are on a call when the connection is lost, you will not lose the 
call, although data associated with the call might be lost. You can attempt to log back 
into the IP Phone Agent service at any time during or after the call, or, in a redundant 
system, one of the backup IP Phone Agent services. 
14:23 02/15/04
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