There is an adjustable timeout value which controls the wait time for the ICD agent to answer, or there are a number of rings before the contact is returned to the CSQ for further process options, such as select another agent, or redirect to voicemail. This timeout value can be adjusted under either the Connect or Select Resource steps. This depends on the script design.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.