Cisco Cisco Computer Telephony Integration Option 8.5 Developer's Guide

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If the Connect() method does not succeed, one of the following events is 
generated:

OnConnectionRejected() event indicates that an unsupported version 
mismatch has been found.

OnCTIOSFailure() indicates that the CTI OS Server requested in the 
Connect() method is down. If an OnConnectionFailure() event is generated, 
the application is in Failover and the CIL continues to attempt to connect until 
the connection succeeds or until the application calls Disconnect(). The 
Arguments parameter for the event includes the following keywords:

FailureCode

SystemEventID

SystemEventArg1

ErrorMessage

For more information on the contents of the OnConnectionFailure() event, 
see the description in Chapter 6.

The following field values may be returned by the Connect() method. See the 
documentation for the CtiOs_Enums.CilError interface in the CIL JavaDoc for 
information on these fields.

CIL_OK - The connection process has successfully begun. The CIL will 
either fire the OnConnection() event to indicate that the CIL successfully 
connected or will fire the OnConnectionFailure() event and go into failover 
mode. If the latter occurs, the CIL will continue to attempt to connect, 
alternating between hosts CTIOS_CTIOSA and CTIOS_CTIOSB, until the 
connection succeeds, at which point the CIL will fire the OnConnection() 
event. 

E_CTIOS_INVALID_ARGUMENT - A null Arguments parameter was 
passed to the Connect() method. The connection failed. No events are fired.