And the same command, but this time with the rule located under /lib/udev/rules.d (not working). The device is in CD-ROM mode:

  looking at device '/devices/pci0000:00/0000:00:1d.7/usb2/2-4':
    KERNEL=="2-4"                                               
    SUBSYSTEM=="usb"                                            
    DRIVER=="usb"                                               
    ATTR{configuration}=="ZTE Configuration"                    
    ATTR{bNumInterfaces}==" 1"                                  
    ATTR{bConfigurationValue}=="1"                              
    ATTR{bmAttributes}=="e0"                                    
    ATTR{bMaxPower}=="500mA"                                    
    ATTR{urbnum}=="827"                                         
    ATTR{idVendor}=="19d2"                                      
    ATTR{idProduct}=="2000"                                     
    ATTR{bcdDevice}=="0000"                                     
    ATTR{bDeviceClass}=="00"                                    
    ATTR{bDeviceSubClass}=="00"                                 
    ATTR{bDeviceProtocol}=="00"                                 
    ATTR{bNumConfigurations}=="1"                               
    ATTR{bMaxPacketSize0}=="64"                                 
    ATTR{speed}=="480"                                          
    ATTR{busnum}=="2"                                           
    ATTR{devnum}=="29"                                          
    ATTR{version}==" 2.00"                                      
    ATTR{maxchild}=="0"                                         
    ATTR{quirks}=="0x0"                                         
    ATTR{authorized}=="1"                                       
    ATTR{manufacturer}=="ZTE,Incorporated"                      
    ATTR{product}=="ZTE CDMA Technologies MSM"                  
    ATTR{serial}=="MDAP673A3CDROMMS"                            

  looking at parent device '/devices/pci0000:00/0000:00:1d.7/usb2':
    KERNELS=="usb2"                                                
    SUBSYSTEMS=="usb"                                              
    DRIVERS=="usb"                                                 
    ATTRS{configuration}==""                                       
    ATTRS{bNumInterfaces}==" 1"                                    
    ATTRS{bConfigurationValue}=="1"                                
    ATTRS{bmAttributes}=="e0"                                      
    ATTRS{bMaxPower}=="  0mA"                                      
    ATTRS{urbnum}=="578"                                           
    ATTRS{idVendor}=="1d6b"                                        
    ATTRS{idProduct}=="0002"                                       
    ATTRS{bcdDevice}=="0206"                                       
    ATTRS{bDeviceClass}=="09"                                      
    ATTRS{bDeviceSubClass}=="00"                                   
    ATTRS{bDeviceProtocol}=="00"                                   
    ATTRS{bNumConfigurations}=="1"                                 
    ATTRS{bMaxPacketSize0}=="64"                                   
    ATTRS{speed}=="480"                                            
    ATTRS{busnum}=="2"                                             
    ATTRS{devnum}=="1"                                             
    ATTRS{version}==" 2.00"                                        
    ATTRS{maxchild}=="6"                                           
    ATTRS{quirks}=="0x0"                                           
    ATTRS{authorized}=="1"                                         
    ATTRS{manufacturer}=="Linux 2.6.31-10-generic ehci_hcd"        
    ATTRS{product}=="EHCI Host Controller"                         
    ATTRS{serial}=="0000:00:1d.7"                                  
    ATTRS{authorized_default}=="1"

  looking at parent device '/devices/pci0000:00/0000:00:1d.7':
    KERNELS=="0000:00:1d.7"
    SUBSYSTEMS=="pci"
    DRIVERS=="ehci_hcd"
    ATTRS{vendor}=="0x8086"
    ATTRS{device}=="0x2836"
    ATTRS{subsystem_vendor}=="0x1028"
    ATTRS{subsystem_device}=="0x022f"
    ATTRS{class}=="0x0c0320"
    ATTRS{irq}=="20"
    ATTRS{local_cpus}=="00000000,00000003"
    ATTRS{local_cpulist}=="0-1"
    ATTRS{modalias}=="pci:v00008086d00002836sv00001028sd0000022Fbc0Csc03i20"
    ATTRS{numa_node}=="0"
    ATTRS{enable}=="1"
    ATTRS{broken_parity_status}=="0"
    ATTRS{msi_bus}==""
    ATTRS{companion}==""

  looking at parent device '/devices/pci0000:00':
    KERNELS=="pci0000:00"
    SUBSYSTEMS==""
    DRIVERS==""