* <span style=color:#F6A83E>Backup</span>: records are sent to backup server if main server is not available (for example fails to open link) or when main server response timeout is reached successively 5 times. | * <span style=color:#F6A83E>Backup</span>: records are sent to backup server if main server is not available (for example fails to open link) or when main server response timeout is reached successively 5 times. |