diff --git a/generated/google/apis/androidmanagement_v1.rb b/generated/google/apis/androidmanagement_v1.rb
index 45929eacb..3d88ca8a8 100644
--- a/generated/google/apis/androidmanagement_v1.rb
+++ b/generated/google/apis/androidmanagement_v1.rb
@@ -26,7 +26,7 @@ module Google
     # @see https://developers.google.com/android/management
     module AndroidmanagementV1
       VERSION = 'V1'
-      REVISION = '20201207'
+      REVISION = '20201209'
 
       # Manage Android devices and apps for your customers
       AUTH_ANDROIDMANAGEMENT = 'https://www.googleapis.com/auth/androidmanagement'
diff --git a/generated/google/apis/androidmanagement_v1/classes.rb b/generated/google/apis/androidmanagement_v1/classes.rb
index 620ffd897..24f5a42a7 100644
--- a/generated/google/apis/androidmanagement_v1/classes.rb
+++ b/generated/google/apis/androidmanagement_v1/classes.rb
@@ -1911,13 +1911,6 @@ module Google
         # @return [String]
         attr_accessor :network_operator_name
       
-        # Provides telephony information associated with each SIM card on the device.
-        # Only supported on fully managed devices starting from Android API level 23 and
-        # above.
-        # Corresponds to the JSON property `telephonyInfos`
-        # @return [Array<Google::Apis::AndroidmanagementV1::TelephonyInfo>]
-        attr_accessor :telephony_infos
-      
         # Wi-Fi MAC address of the device. For example, 7c:11:11:11:11:11.
         # Corresponds to the JSON property `wifiMacAddress`
         # @return [String]
@@ -1932,7 +1925,6 @@ module Google
           @imei = args[:imei] if args.key?(:imei)
           @meid = args[:meid] if args.key?(:meid)
           @network_operator_name = args[:network_operator_name] if args.key?(:network_operator_name)
-          @telephony_infos = args[:telephony_infos] if args.key?(:telephony_infos)
           @wifi_mac_address = args[:wifi_mac_address] if args.key?(:wifi_mac_address)
         end
       end
@@ -3533,33 +3525,6 @@ module Google
         end
       end
       
-      # Telephony information associated with a given SIM card on the device. Only
-      # supported on fully managed devices starting from Android API level 23 and
-      # above.
-      class TelephonyInfo
-        include Google::Apis::Core::Hashable
-      
-        # The carrier name associated with this SIM card.
-        # Corresponds to the JSON property `carrierName`
-        # @return [String]
-        attr_accessor :carrier_name
-      
-        # The phone number associated with this SIM card.
-        # Corresponds to the JSON property `phoneNumber`
-        # @return [String]
-        attr_accessor :phone_number
-      
-        def initialize(**args)
-           update!(**args)
-        end
-      
-        # Update properties of this object
-        def update!(**args)
-          @carrier_name = args[:carrier_name] if args.key?(:carrier_name)
-          @phone_number = args[:phone_number] if args.key?(:phone_number)
-        end
-      end
-      
       # A terms and conditions page to be accepted during provisioning.
       class TermsAndConditions
         include Google::Apis::Core::Hashable
diff --git a/generated/google/apis/androidmanagement_v1/representations.rb b/generated/google/apis/androidmanagement_v1/representations.rb
index ad5759b21..75d618244 100644
--- a/generated/google/apis/androidmanagement_v1/representations.rb
+++ b/generated/google/apis/androidmanagement_v1/representations.rb
@@ -394,12 +394,6 @@ module Google
         include Google::Apis::Core::JsonObjectSupport
       end
       
-      class TelephonyInfo
-        class Representation < Google::Apis::Core::JsonRepresentation; end
-      
-        include Google::Apis::Core::JsonObjectSupport
-      end
-      
       class TermsAndConditions
         class Representation < Google::Apis::Core::JsonRepresentation; end
       
@@ -902,8 +896,6 @@ module Google
           property :imei, as: 'imei'
           property :meid, as: 'meid'
           property :network_operator_name, as: 'networkOperatorName'
-          collection :telephony_infos, as: 'telephonyInfos', class: Google::Apis::AndroidmanagementV1::TelephonyInfo, decorator: Google::Apis::AndroidmanagementV1::TelephonyInfo::Representation
-      
           property :wifi_mac_address, as: 'wifiMacAddress'
         end
       end
@@ -1256,14 +1248,6 @@ module Google
         end
       end
       
-      class TelephonyInfo
-        # @private
-        class Representation < Google::Apis::Core::JsonRepresentation
-          property :carrier_name, as: 'carrierName'
-          property :phone_number, as: 'phoneNumber'
-        end
-      end
-      
       class TermsAndConditions
         # @private
         class Representation < Google::Apis::Core::JsonRepresentation
diff --git a/generated/google/apis/androidmanagement_v1/synth.metadata b/generated/google/apis/androidmanagement_v1/synth.metadata
index 0aebac036..45474fbb0 100644
--- a/generated/google/apis/androidmanagement_v1/synth.metadata
+++ b/generated/google/apis/androidmanagement_v1/synth.metadata
@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/google-api-ruby-client.git",
-        "sha": "4a08e0b2fde874551723ca843986ed92d354daf1"
+        "sha": "918f23b9d5bd95d60365b182787de6a8057548c1"
       }
     }
   ]