error.common.InteractionServerCode::Type:ALREADY_HAVE_MEDIA::Number:70

[n2201]

I am working with this inhouse application that does screen pop for email and voice interaction.

For email interaction if the user shuts down the application with out properly Mark-Done the email interaction the user gets this error message: error.common.InteractionServerCode::Type:ALREADY_HAVE_MEDIA::Number:70

and keeps getting this message for some time ( I think till the time the email interaction is in the queue)

Where do I look for more information on what this error means?

Thanks, appreciate your help