diff --git a/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/CommunicationService.json b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/CommunicationService.json
new file mode 100644
index 000000000000..4a6b30e4e010
--- /dev/null
+++ b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/CommunicationService.json
@@ -0,0 +1,965 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "title": "Azure Communication Services Management API",
+    "version": "2020-08-20",
+    "description": "REST API for Azure Communication Services"
+  },
+  "consumes": [
+    "application/json"
+  ],
+  "produces": [
+    "application/json"
+  ],
+  "host": "management.azure.com",
+  "schemes": [
+    "https"
+  ],
+  "securityDefinitions": {
+    "azure_auth": {
+      "type": "oauth2",
+      "authorizationUrl": "https://login.microsoftonline.com/common/oauth2/authorize",
+      "flow": "implicit",
+      "description": "Azure Active Directory OAuth2 Flow",
+      "scopes": {
+        "user_impersonation": "impersonate your user account"
+      }
+    }
+  },
+  "paths": {
+    "/providers/Microsoft.Communication/operations": {
+      "get": {
+        "description": "Lists all of the available REST API operations of the Microsoft.Communication provider.",
+        "operationId": "Operations_List",
+        "summary": "List Operations",
+        "tags": [
+          "Operations"
+        ],
+        "parameters": [
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ApiVersionParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Success. The response describes the list of operations.",
+            "schema": {
+              "$ref": "../../../../../common-types/resource-management/v2/types.json#/definitions/OperationListResult"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "../../../../../common-types/resource-management/v2/types.json#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "produces": [
+          "application/json"
+        ],
+        "x-ms-pageable": {
+          "nextLinkName": "nextLink"
+        }
+      }
+    },
+    "/subscriptions/{subscriptionId}/providers/Microsoft.Communication/checkNameAvailability": {
+      "post": {
+        "description": "Checks that the CommunicationService name is valid and is not already in use.",
+        "operationId": "CommunicationService_CheckNameAvailability",
+        "summary": "Check Name Availability",
+        "tags": [
+          "CommunicationService"
+        ],
+        "parameters": [
+          {
+            "name": "nameAvailabilityParameters",
+            "in": "body",
+            "schema": {
+              "$ref": "#/definitions/NameAvailabilityParameters"
+            },
+            "description": "Parameters supplied to the operation."
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ApiVersionParameter"
+          }
+        ],
+        "consumes": [
+          "application/json"
+        ],
+        "responses": {
+          "200": {
+            "description": "Success. The response describes the name availability.",
+            "schema": {
+              "$ref": "#/definitions/NameAvailability"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "../../../../../common-types/resource-management/v2/types.json#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "produces": [
+          "application/json"
+        ],
+        "x-ms-examples": {
+          "Check name availability available": {
+            "$ref": "./examples/checkNameAvailabilityAvailable.json"
+          },
+          "Check name availability unavailable": {
+            "$ref": "./examples/checkNameAvailabilityUnavailable.json"
+          }
+        }
+      }
+    },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Communication/communicationServices/{communicationServiceName}/linkNotificationHub": {
+      "post": {
+        "description": "Links an Azure Notification Hub to this communication service.",
+        "operationId": "CommunicationService_LinkNotificationHub",
+        "summary": "Link Notification Hub",
+        "tags": [
+          "CommunicationService"
+        ],
+        "parameters": [
+          {
+            "name": "linkNotificationHubParameters",
+            "in": "body",
+            "schema": {
+              "$ref": "#/definitions/LinkNotificationHubParameters"
+            },
+            "description": "Parameters supplied to the operation."
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ResourceGroupNameParameter"
+          },
+          {
+            "$ref": "#/parameters/CommunicationServiceName"
+          }
+        ],
+        "consumes": [
+          "application/json"
+        ],
+        "responses": {
+          "200": {
+            "description": "Success. The notification hub has been linked.",
+            "schema": {
+              "$ref": "#/definitions/LinkedNotificationHub"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "../../../../../common-types/resource-management/v2/types.json#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "produces": [
+          "application/json"
+        ],
+        "x-ms-examples": {
+          "Link notification hub": {
+            "$ref": "./examples/linkNotificationHub.json"
+          }
+        }
+      }
+    },
+    "/providers/Microsoft.Communication/locations/{location}/operationStatuses/{operationId}": {
+      "get": {
+        "description": "Gets the current status of an async operation.",
+        "operationId": "OperationStatuses_Get",
+        "summary": "Get Operation Status",
+        "tags": [
+          "OperationStatus"
+        ],
+        "parameters": [
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/LocationParameter"
+          },
+          {
+            "$ref": "#/parameters/OperationIdParameter"
+          }
+        ],
+        "consumes": [
+          "application/json"
+        ],
+        "responses": {
+          "200": {
+            "description": "The requested operation status",
+            "schema": {
+              "$ref": "#/definitions/OperationStatus"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "../../../../../common-types/resource-management/v2/types.json#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "produces": [
+          "application/json"
+        ],
+        "x-ms-examples": {
+          "Get OperationStatus": {
+            "$ref": "./examples/getOperationStatus.json"
+          }
+        }
+      }
+    },
+    "/subscriptions/{subscriptionId}/providers/Microsoft.Communication/communicationServices": {
+      "get": {
+        "description": "Handles requests to list all resources in a subscription.",
+        "operationId": "CommunicationService_ListBySubscription",
+        "summary": "List By Subscription",
+        "tags": [
+          "CommunicationService"
+        ],
+        "parameters": [
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Success. The response describes the list of CommunicationServices in the subscription.",
+            "schema": {
+              "$ref": "#/definitions/CommunicationServiceResourceList"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "../../../../../common-types/resource-management/v2/types.json#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "produces": [
+          "application/json"
+        ],
+        "x-ms-pageable": {
+          "nextLinkName": "nextLink"
+        },
+        "x-ms-examples": {
+          "List by subscription": {
+            "$ref": "./examples/listBySubscription.json"
+          }
+        }
+      }
+    },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Communication/communicationServices": {
+      "get": {
+        "description": "Handles requests to list all resources in a resource group.",
+        "operationId": "CommunicationService_ListByResourceGroup",
+        "summary": "List By Resource Group",
+        "tags": [
+          "CommunicationService"
+        ],
+        "parameters": [
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ResourceGroupNameParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Success. The response describes the list of CommunicationServices in a resourceGroup.",
+            "schema": {
+              "$ref": "#/definitions/CommunicationServiceResourceList"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "../../../../../common-types/resource-management/v2/types.json#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "x-ms-pageable": {
+          "nextLinkName": "nextLink"
+        },
+        "produces": [
+          "application/json"
+        ],
+        "x-ms-examples": {
+          "List by resource group": {
+            "$ref": "./examples/listByResourceGroup.json"
+          }
+        }
+      }
+    },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Communication/communicationServices/{communicationServiceName}": {
+      "patch": {
+        "description": "Operation to update an existing CommunicationService.",
+        "operationId": "CommunicationService_Update",
+        "summary": "Update",
+        "tags": [
+          "CommunicationService"
+        ],
+        "parameters": [
+          {
+            "name": "parameters",
+            "in": "body",
+            "description": "Parameters for the update operation",
+            "required": false,
+            "schema": {
+              "$ref": "#/definitions/CommunicationServiceResource"
+            }
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ResourceGroupNameParameter"
+          },
+          {
+            "$ref": "#/parameters/CommunicationServiceName"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "The update request was successful",
+            "schema": {
+              "$ref": "#/definitions/CommunicationServiceResource"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "../../../../../common-types/resource-management/v2/types.json#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "produces": [
+          "application/json"
+        ],
+        "x-ms-examples": {
+          "Update resource": {
+            "$ref": "./examples/update.json"
+          }
+        }
+      },
+      "get": {
+        "description": "Get the CommunicationService and its properties.",
+        "operationId": "CommunicationService_Get",
+        "summary": "Get",
+        "tags": [
+          "CommunicationService"
+        ],
+        "parameters": [
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ResourceGroupNameParameter"
+          },
+          {
+            "$ref": "#/parameters/CommunicationServiceName"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Success. The response describe the corresponding CommunicationService service.",
+            "schema": {
+              "$ref": "#/definitions/CommunicationServiceResource"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "../../../../../common-types/resource-management/v2/types.json#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "produces": [
+          "application/json"
+        ],
+        "x-ms-examples": {
+          "Get resource": {
+            "$ref": "./examples/get.json"
+          }
+        }
+      },
+      "put": {
+        "description": "Create a new CommunicationService or update an existing CommunicationService.",
+        "operationId": "CommunicationService_CreateOrUpdate",
+        "summary": "Create Or Update",
+        "tags": [
+          "CommunicationService"
+        ],
+        "parameters": [
+          {
+            "name": "parameters",
+            "in": "body",
+            "description": "Parameters for the create or update operation",
+            "required": false,
+            "schema": {
+              "$ref": "#/definitions/CommunicationServiceResource"
+            }
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ResourceGroupNameParameter"
+          },
+          {
+            "$ref": "#/parameters/CommunicationServiceName"
+          }
+        ],
+        "consumes": [
+          "application/json"
+        ],
+        "responses": {
+          "200": {
+            "description": "The create or update request was completed successfully",
+            "schema": {
+              "$ref": "#/definitions/CommunicationServiceResource"
+            }
+          },
+          "201": {
+            "description": "The create or update request was accepted",
+            "headers": {
+              "Azure-AsyncOperation": {
+                "description": "URL to query for status of the operation.",
+                "type": "string"
+              }
+            },
+            "schema": {
+              "$ref": "#/definitions/CommunicationServiceResource"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "../../../../../common-types/resource-management/v2/types.json#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "produces": [
+          "application/json"
+        ],
+        "x-ms-long-running-operation": true,
+        "x-ms-long-running-operation-options": {
+          "final-state-via": "azure-async-operation"
+        },
+        "x-ms-examples": {
+          "Create or update resource": {
+            "$ref": "./examples/createOrUpdate.json"
+          }
+        }
+      },
+      "delete": {
+        "description": "Operation to delete a CommunicationService.",
+        "operationId": "CommunicationService_Delete",
+        "summary": "Delete",
+        "tags": [
+          "CommunicationService"
+        ],
+        "parameters": [
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ResourceGroupNameParameter"
+          },
+          {
+            "$ref": "#/parameters/CommunicationServiceName"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "The delete operation was successful."
+          },
+          "202": {
+            "description": "The delete operation is being performed in the background.",
+            "headers": {
+              "location": {
+                "description": "URL to query for status of the operation.",
+                "type": "string"
+              }
+            }
+          },
+          "204": {
+            "description": "The resource did not exist."
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "../../../../../common-types/resource-management/v2/types.json#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "x-ms-long-running-operation": true,
+        "x-ms-long-running-operation-options": {
+          "final-state-via": "location"
+        },
+        "x-ms-examples": {
+          "Delete resource": {
+            "$ref": "./examples/delete.json"
+          }
+        }
+      }
+    },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Communication/communicationServices/{communicationServiceName}/listKeys": {
+      "post": {
+        "description": "Get the access keys of the CommunicationService resource.",
+        "operationId": "CommunicationService_ListKeys",
+        "summary": "List Keys",
+        "tags": [
+          "CommunicationService"
+        ],
+        "parameters": [
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ResourceGroupNameParameter"
+          },
+          {
+            "$ref": "#/parameters/CommunicationServiceName"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Success. The response describes CommunicationService access keys.",
+            "schema": {
+              "$ref": "#/definitions/CommunicationServiceKeys"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "../../../../../common-types/resource-management/v2/types.json#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "produces": [
+          "application/json"
+        ],
+        "x-ms-examples": {
+          "List keys": {
+            "$ref": "./examples/listKeys.json"
+          }
+        }
+      }
+    },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Communication/communicationServices/{communicationServiceName}/regenerateKey": {
+      "post": {
+        "description": "Regenerate CommunicationService access key. PrimaryKey and SecondaryKey cannot be regenerated at the same time.",
+        "operationId": "CommunicationService_RegenerateKey",
+        "summary": "Regenerate Key",
+        "tags": [
+          "CommunicationService"
+        ],
+        "parameters": [
+          {
+            "name": "parameters",
+            "in": "body",
+            "description": "Parameter that describes the Regenerate Key Operation.",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/RegenerateKeyParameters"
+            }
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v1/types.json#/parameters/ResourceGroupNameParameter"
+          },
+          {
+            "$ref": "#/parameters/CommunicationServiceName"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Created. The response contains the new key.",
+            "schema": {
+              "$ref": "#/definitions/CommunicationServiceKeys"
+            }
+          },
+          "201": {
+            "description": "Created and an async operation is executing in background to make the new key take effect. The response contains new keys and an Azure-AsyncOperation header to query the async operation result.",
+            "schema": {
+              "$ref": "#/definitions/CommunicationServiceKeys"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "../../../../../common-types/resource-management/v2/types.json#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "consumes": [
+          "application/json"
+        ],
+        "produces": [
+          "application/json"
+        ],
+        "x-ms-examples": {
+          "Regenerate key": {
+            "$ref": "./examples/regenerateKey.json"
+          }
+        }
+      }
+    }
+  },
+  "definitions": {
+    "NameAvailabilityParameters": {
+      "description": "Data POST-ed to the nameAvailability action",
+      "required": [
+        "type",
+        "name"
+      ],
+      "type": "object",
+      "properties": {
+        "type": {
+          "description": "The resource type. Should be always \"Microsoft.Communication/CommunicationServices\".",
+          "type": "string"
+        },
+        "name": {
+          "description": "The CommunicationService name to validate. e.g.\"my-CommunicationService-name-here\"",
+          "type": "string"
+        }
+      }
+    },
+    "NameAvailability": {
+      "description": "Result of the request to check name availability. It contains a flag and possible reason of failure.",
+      "type": "object",
+      "properties": {
+        "nameAvailable": {
+          "description": "Indicates whether the name is available or not.",
+          "type": "boolean"
+        },
+        "reason": {
+          "description": "The reason of the availability. Required if name is not available.",
+          "type": "string"
+        },
+        "message": {
+          "description": "The message of the operation.",
+          "type": "string"
+        }
+      }
+    },
+    "LinkNotificationHubParameters": {
+      "description": "Description of an Azure Notification Hub to link to the communication service",
+      "required": [
+        "resourceId",
+        "connectionString"
+      ],
+      "type": "object",
+      "properties": {
+        "resourceId": {
+          "description": "The resource ID of the notification hub",
+          "type": "string"
+        },
+        "connectionString": {
+          "description": "Connection string for the notification hub",
+          "type": "string"
+        }
+      }
+    },
+    "LinkedNotificationHub": {
+      "description": "A notification hub that has been linked to the communication service",
+      "type": "object",
+      "properties": {
+        "resourceId": {
+          "description": "The resource ID of the notification hub",
+          "type": "string"
+        }
+      }
+    },
+    "OperationStatus": {
+      "description": "The current status of an async operation",
+      "type": "object",
+      "properties": {
+        "id": {
+          "description": "Fully qualified ID for the operation status.",
+          "type": "string",
+          "readOnly": true
+        },
+        "status": {
+          "description": "Provisioning state of the resource.",
+          "enum": [
+            "Succeeded",
+            "Failed",
+            "Canceled",
+            "Creating",
+            "Deleting",
+            "Moving"
+          ],
+          "type": "string",
+          "readOnly": true,
+          "x-ms-enum": {
+            "name": "Status",
+            "modelAsString": true
+          }
+        },
+        "startTime": {
+          "description": "The start time of the operation",
+          "type": "string",
+          "readOnly": true,
+          "format": "date-time"
+        },
+        "endTime": {
+          "description": "The end time of the operation",
+          "type": "string",
+          "readOnly": true,
+          "format": "date-time"
+        },
+        "percentComplete": {
+          "description": "Percent of the operation that is complete",
+          "type": "number",
+          "readOnly": true,
+          "minimum": 0,
+          "maximum": 100
+        },
+        "error": {
+          "description": "Operation Error message",
+          "$ref": "../../../../../common-types/resource-management/v2/types.json#/definitions/ErrorResponse",
+          "x-ms-client-flatten": true
+        }
+      }
+    },
+    "CommunicationServiceResourceList": {
+      "description": "Object that includes an array of CommunicationServices and a possible link for next set.",
+      "type": "object",
+      "properties": {
+        "value": {
+          "description": "List of CommunicationService",
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/CommunicationServiceResource"
+          }
+        },
+        "nextLink": {
+          "description": "The URL the client should use to fetch the next page (per server side paging).\r\nIt's null for now, added for future use.",
+          "type": "string"
+        }
+      }
+    },
+    "CommunicationServiceResource": {
+      "description": "A class representing a CommunicationService resource.",
+      "type": "object",
+      "allOf": [
+        {
+          "$ref": "../../../../../common-types/resource-management/v2/types.json#/definitions/Resource"
+        },
+        {
+          "$ref": "#/definitions/LocationResource"
+        },
+        {
+          "$ref": "#/definitions/TaggedResource"
+        }
+      ],
+      "properties": {
+        "properties": {
+          "$ref": "#/definitions/CommunicationServiceProperties",
+          "description": "The properties of the service.",
+          "x-ms-client-flatten": true
+        },
+        "systemData": {
+          "$ref": "../../../../../common-types/resource-management/v2/types.json#/definitions/systemData"
+        }
+      }
+    },
+    "LocationResource": {
+      "description": "An ARM resource with its own location (not a global or an inherited location).",
+      "type": "object",
+      "properties": {
+        "location": {
+          "description": "The Azure location where the CommunicationService is running.",
+          "type": "string",
+          "x-ms-mutability": [
+            "create",
+            "read"
+          ]
+        }
+      }
+    },
+    "TaggedResource": {
+      "description": "An ARM resource with that can accept tags",
+      "type": "object",
+      "properties": {
+        "tags": {
+          "description": "Tags of the service which is a list of key value pairs that describe the resource.",
+          "type": "object",
+          "additionalProperties": {
+            "type": "string"
+          },
+          "x-ms-mutability": [
+            "read",
+            "create",
+            "update"
+          ]
+        }
+      }
+    },
+    "CommunicationServiceProperties": {
+      "description": "A class that describes the properties of the CommunicationService.",
+      "required": [
+        "dataLocation"
+      ],
+      "type": "object",
+      "properties": {
+        "provisioningState": {
+          "description": "Provisioning state of the resource.",
+          "enum": [
+            "Unknown",
+            "Succeeded",
+            "Failed",
+            "Canceled",
+            "Running",
+            "Creating",
+            "Updating",
+            "Deleting",
+            "Moving"
+          ],
+          "type": "string",
+          "readOnly": true,
+          "x-ms-enum": {
+            "name": "ProvisioningState",
+            "modelAsString": true
+          }
+        },
+        "hostName": {
+          "description": "FQDN of the CommunicationService instance.",
+          "type": "string",
+          "readOnly": true
+        },
+        "dataLocation": {
+          "description": "The location where the communication service stores its data at rest.",
+          "type": "string",
+          "x-ms-mutability": [
+            "create",
+            "read"
+          ]
+        },
+        "notificationHubId": {
+          "description": "Resource ID of an Azure Notification Hub linked to this resource.",
+          "type": "string",
+          "readOnly": true
+        },
+        "version": {
+          "description": "Version of the CommunicationService resource. Probably you need the same or higher version of client SDKs.",
+          "type": "string",
+          "readOnly": true
+        },
+        "immutableResourceId": {
+          "description": "The immutable resource Id of the communication service.",
+          "type": "string",
+          "readOnly": true
+        }
+      }
+    },
+    "CommunicationServiceKeys": {
+      "description": "A class representing the access keys of a CommunicationService.",
+      "type": "object",
+      "properties": {
+        "primaryKey": {
+          "description": "The primary access key.",
+          "type": "string"
+        },
+        "secondaryKey": {
+          "description": "The secondary access key.",
+          "type": "string"
+        },
+        "primaryConnectionString": {
+          "description": "CommunicationService connection string constructed via the primaryKey",
+          "type": "string"
+        },
+        "secondaryConnectionString": {
+          "description": "CommunicationService connection string constructed via the secondaryKey",
+          "type": "string"
+        }
+      }
+    },
+    "RegenerateKeyParameters": {
+      "description": "Parameters describes the request to regenerate access keys",
+      "type": "object",
+      "properties": {
+        "keyType": {
+          "description": "The keyType to regenerate. Must be either 'primary' or 'secondary'(case-insensitive).",
+          "enum": [
+            "Primary",
+            "Secondary"
+          ],
+          "type": "string",
+          "x-ms-enum": {
+            "name": "KeyType",
+            "modelAsString": false
+          }
+        }
+      }
+    }
+  },
+  "parameters": {
+    "CommunicationServiceName": {
+      "name": "communicationServiceName",
+      "in": "path",
+      "description": "The name of the CommunicationService resource.",
+      "pattern": "^[-\\w]+$",
+      "minLength": 1,
+      "maxLength": 63,
+      "required": true,
+      "type": "string",
+      "x-ms-parameter-location": "method"
+    },
+    "LocationParameter": {
+      "name": "location",
+      "in": "path",
+      "description": "The Azure region",
+      "required": true,
+      "type": "string",
+      "x-ms-parameter-location": "method"
+    },
+    "OperationIdParameter": {
+      "name": "operationId",
+      "in": "path",
+      "description": "The ID of an ongoing async operation",
+      "required": true,
+      "type": "string",
+      "x-ms-parameter-location": "method"
+    }
+  }
+}
diff --git a/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/checkNameAvailabilityAvailable.json b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/checkNameAvailabilityAvailable.json
new file mode 100644
index 000000000000..7f98740e2575
--- /dev/null
+++ b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/checkNameAvailabilityAvailable.json
@@ -0,0 +1,19 @@
+{
+  "parameters": {
+    "subscriptionId": "12345",
+    "api-version": "2020-08-20",
+    "nameAvailabilityParameters": {
+      "type": "Microsoft.Communication/CommunicationServices",
+      "name": "MyCommunicationService"
+    }
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "nameAvailable": true,
+        "reason": "NameAvailable",
+        "message": "Requested name is available for the requested type"
+      }
+    }
+  }
+}
diff --git a/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/checkNameAvailabilityUnavailable.json b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/checkNameAvailabilityUnavailable.json
new file mode 100644
index 000000000000..06c2199d7535
--- /dev/null
+++ b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/checkNameAvailabilityUnavailable.json
@@ -0,0 +1,19 @@
+{
+  "parameters": {
+    "subscriptionId": "12345",
+    "api-version": "2020-08-20",
+    "nameAvailabilityParameters": {
+      "type": "Microsoft.Communication/CommunicationServices",
+      "name": "MyCommunicationService"
+    }
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "nameAvailable": false,
+        "reason": "AlreadyExists",
+        "message": "Requested name is unavailable for the requested type"
+      }
+    }
+  }
+}
diff --git a/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/createOrUpdate.json b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/createOrUpdate.json
new file mode 100644
index 000000000000..4e24f21f850e
--- /dev/null
+++ b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/createOrUpdate.json
@@ -0,0 +1,44 @@
+{
+  "parameters": {
+    "subscriptionId": "12345",
+    "resourceGroupName": "MyResourceGroup",
+    "communicationServiceName": "MyCommunicationResource",
+    "api-version": "2020-08-20",
+    "parameters": {
+      "location": "Global",
+      "properties": {
+        "dataLocation": "United States"
+      }
+    }
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "id": "/subscriptions/12345/resourceGroups/MyResourceGroup/providers/Microsoft.Communication/CommunicationServices/MyCommunicationResource",
+        "name": "MyCommunicationResource",
+        "type": "Microsoft.Communication/CommunicationServices",
+        "location": "Global",
+        "properties": {
+          "dataLocation": "United States",
+          "provisioningState": "Succeeded",
+          "hostName": "mycommunicationresource.communications.azure.com"
+        }
+      }
+    },
+    "201": {
+      "headers": {
+        "Azure-AsyncOperation": "https://management.azure.com/providers/Microsoft.Communication/locations/westus/operationStatuses/ed5d502c-acaa-42ec-ad61-0d8488a9fd1d"
+      },
+      "body": {
+        "id": "/subscriptions/12345/resourceGroups/MyResourceGroup/providers/Microsoft.Communication/CommunicationServices/MyCommunicationResource",
+        "name": "MyCommunicationResource",
+        "type": "Microsoft.Communication/CommunicationServices",
+        "location": "Global",
+        "properties": {
+          "dataLocation": "United States",
+          "provisioningState": "Accepted"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/delete.json b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/delete.json
new file mode 100644
index 000000000000..dee27253600e
--- /dev/null
+++ b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/delete.json
@@ -0,0 +1,17 @@
+{
+  "parameters": {
+    "subscriptionId": "12345",
+    "resourceGroupName": "MyResourceGroup",
+    "communicationServiceName": "MyCommunicationResource",
+    "api-version": "2020-08-20"
+  },
+  "responses": {
+    "200": {},
+    "202": {
+      "headers": {
+        "Location": "https://management.azure.com/providers/Microsoft.Communication/locations/westus/operationStatuses/ed5d502c-acaa-42ec-ad61-0d8488a9fd1d"
+      }
+    },
+    "204": {}
+  }
+}
diff --git a/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/get.json b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/get.json
new file mode 100644
index 000000000000..2c3d49aa4b28
--- /dev/null
+++ b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/get.json
@@ -0,0 +1,32 @@
+{
+  "parameters": {
+    "subscriptionId": "12345",
+    "resourceGroupName": "MyResourceGroup",
+    "communicationServiceName": "MyCommunicationResource",
+    "api-version": "2020-08-20"
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "id": "/subscriptions/12345/resourceGroups/MyResourceGroup/providers/Microsoft.Communication/CommunicationServices/MyCommunicationResource",
+        "name": "MyCommunicationResource",
+        "type": "Microsoft.Communication/CommunicationServices",
+        "location": "Global",
+        "properties": {
+          "dataLocation": "United States",
+          "provisioningState": "Running",
+          "hostName": "mycommunicationservice.comms.azure.net",
+          "version": "0.2.0"
+        }
+      }
+    },
+    "default": {
+      "body": {
+        "error": {
+          "code": "ResourceNotFound",
+          "message": "The requested resource was not found"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/getOperationStatus.json b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/getOperationStatus.json
new file mode 100644
index 000000000000..fc9587705dd9
--- /dev/null
+++ b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/getOperationStatus.json
@@ -0,0 +1,26 @@
+{
+  "parameters": {
+    "location": "westus2",
+    "operationId": "db5f291f-284d-46e9-9152-d5c83f7c14b8",
+    "api-version": "2020-08-20"
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "id": "db5f291f-284d-46e9-9152-d5c83f7c14b8",
+        "status": "Succeeded",
+        "startTime": "2020-07-06T17:06:26.100Z",
+        "endTime": "2020-07-06T17:06:42.800Z",
+        "percentComplete": 100
+      }
+    },
+    "default": {
+      "body": {
+        "error": {
+          "code": "OperationNotFound",
+          "message": "The requested async operation was not found"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/linkNotificationHub.json b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/linkNotificationHub.json
new file mode 100644
index 000000000000..7ddfbcc705e1
--- /dev/null
+++ b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/linkNotificationHub.json
@@ -0,0 +1,27 @@
+{
+  "parameters": {
+    "subscriptionId": "12345",
+    "resourceGroupName": "MyResourceGroup",
+    "communicationServiceName": "MyCommunicationResource",
+    "api-version": "2020-08-20",
+    "linkNotificationHubParameters": {
+      "resourceId": "/subscriptions/12345/resourceGroups/MyOtherResourceGroup/providers/Microsoft.NotificationHubs/namespaces/MyNamespace/notificationHubs/MyHub",
+      "connectionString": "Endpoint=sb://MyNamespace.servicebus.windows.net/;SharedAccessKey=abcd1234"
+    }
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "resourceId": "/subscriptions/12345/resourceGroups/MyOtherResourceGroup/providers/Microsoft.NotificationHubs/namespaces/MyNamespace/notificationHubs/MyHub"
+      }
+    },
+    "default": {
+      "body": {
+        "error": {
+          "code": "WrongSubscription",
+          "message": "The notification hub must be in the same subscription as the communication service"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/listByResourceGroup.json b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/listByResourceGroup.json
new file mode 100644
index 000000000000..a1a743f567ab
--- /dev/null
+++ b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/listByResourceGroup.json
@@ -0,0 +1,23 @@
+{
+  "parameters": {
+    "subscriptionId": "12345",
+    "resourceGroupName": "MyResourceGroup",
+    "api-version": "2020-08-20"
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "value": [
+          {
+            "properties": {
+              "provisioningState": "Running",
+              "dataLocation": "United States",
+              "hostName": "mycommunicationservice.comms.azure.net",
+              "version": "0.2.0"
+            }
+          }
+        ]
+      }
+    }
+  }
+}
diff --git a/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/listBySubscription.json b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/listBySubscription.json
new file mode 100644
index 000000000000..99e114dcf5ee
--- /dev/null
+++ b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/listBySubscription.json
@@ -0,0 +1,22 @@
+{
+  "parameters": {
+    "subscriptionId": "12345",
+    "api-version": "2020-08-20"
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "value": [
+          {
+            "properties": {
+              "provisioningState": "Running",
+              "dataLocation": "United States",
+              "hostName": "mycommunicationservice.comms.azure.net",
+              "version": "0.2.0"
+            }
+          }
+        ]
+      }
+    }
+  }
+}
diff --git a/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/listKeys.json b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/listKeys.json
new file mode 100644
index 000000000000..b78580f4aa9a
--- /dev/null
+++ b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/listKeys.json
@@ -0,0 +1,16 @@
+{
+  "parameters": {
+    "subscriptionId": "12345",
+    "resourceGroupName": "MyResourceGroup",
+    "communicationServiceName": "MyCommunicationResource",
+    "api-version": "2020-08-20"
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "primaryKey": "<primaryKey>",
+        "secondaryKey": "<secondaryKey>"
+      }
+    }
+  }
+}
diff --git a/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/regenerateKey.json b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/regenerateKey.json
new file mode 100644
index 000000000000..37aa4b26a332
--- /dev/null
+++ b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/regenerateKey.json
@@ -0,0 +1,22 @@
+{
+  "parameters": {
+    "subscriptionId": "12345",
+    "resourceGroupName": "MyResourceGroup",
+    "communicationServiceName": "MyCommunicationResource",
+    "api-version": "2020-08-20",
+    "parameters": {
+      "keyType": "Primary"
+    }
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "primaryKey": "1234",
+        "primaryConnectionString": "endpoint=http://example.com;accesskey=1234"
+      }
+    },
+    "201": {
+      "body": {}
+    }
+  }
+}
diff --git a/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/update.json b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/update.json
new file mode 100644
index 000000000000..3537d9dd4142
--- /dev/null
+++ b/specification/communication/resource-manager/Microsoft.Communication/stable/2020-08-20/examples/update.json
@@ -0,0 +1,32 @@
+{
+  "parameters": {
+    "subscriptionId": "12345",
+    "resourceGroupName": "MyResourceGroup",
+    "communicationServiceName": "MyCommunicationResource",
+    "api-version": "2020-08-20",
+    "parameters": {
+      "tags": {
+        "newTag": "newVal"
+      }
+    }
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "id": "/subscriptions/12345/resourceGroups/MyResourceGroup/providers/Microsoft.Communication/CommunicationServices/MyCommunicationResource",
+        "name": "MyCommunicationResource",
+        "type": "Microsoft.Communication/CommunicationServices",
+        "location": "Global",
+        "tags": {
+          "newTag": "newVal"
+        },
+        "properties": {
+          "provisioningState": "Succeeded",
+          "dataLocation": "United States",
+          "hostName": "mycommunicationresource.communications.azure.com",
+          "version": "0.2.0"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/communication/resource-manager/readme.azureresourceschema.md b/specification/communication/resource-manager/readme.azureresourceschema.md
index 9f59d5cca93d..447921f5ed6b 100644
--- a/specification/communication/resource-manager/readme.azureresourceschema.md
+++ b/specification/communication/resource-manager/readme.azureresourceschema.md
@@ -6,12 +6,24 @@ These settings apply only when `--azureresourceschema` is specified on the comma
 
 ``` yaml $(azureresourceschema) && $(multiapi)
 batch:
+  - tag: schema-communication-2020-08-20
   - tag: schema-communication-2020-08-20-preview
 
 ```
 
 Please also specify `--azureresourceschema-folder=<path to the root directory of your azure-resource-manager-schemas clone>`.
 
+### Tag: schema-communication-2020-08-20 and azureresourceschema
+
+``` yaml $(tag) == 'schema-communication-2020-08-20' && $(azureresourceschema)
+output-folder: $(azureresourceschema-folder)/schemas
+
+# all the input files in this apiVersion
+input-file:
+  - Microsoft.Communication/stable/2020-08-20/CommunicationService.json
+
+```
+
 ### Tag: schema-communication-2020-08-20-preview and azureresourceschema
 
 ``` yaml $(tag) == 'schema-communication-2020-08-20-preview' && $(azureresourceschema)
diff --git a/specification/communication/resource-manager/readme.go.md b/specification/communication/resource-manager/readme.go.md
index 1434d5fd3791..d1113c532b23 100644
--- a/specification/communication/resource-manager/readme.go.md
+++ b/specification/communication/resource-manager/readme.go.md
@@ -13,9 +13,19 @@ go:
 
 ``` yaml $(go) && $(multiapi)
 batch:
+  - tag: package-2020-08-20
   - tag: package-2020-08-20-preview
 ```
 
+### Tag: package-2020-08-20 and go
+
+These settings apply only when `--tag=package-2020-08-20 --go` is specified on the command line.
+Please also specify `--go-sdk-folder=<path to the root directory of your azure-sdk-for-go clone>`.
+
+``` yaml $(tag) == 'package-2020-08-20' && $(go)
+output-folder: $(go-sdk-folder)/services/$(namespace)/mgmt/2020-08-20/$(namespace)
+```
+
 ### Tag: package-2020-08-20-preview and go
 
 These settings apply only when `--tag=package-2020-08-20-preview --go` is specified on the command line.
diff --git a/specification/communication/resource-manager/readme.java.md b/specification/communication/resource-manager/readme.java.md
index 9c6341c30e98..f52e515d6980 100644
--- a/specification/communication/resource-manager/readme.java.md
+++ b/specification/communication/resource-manager/readme.java.md
@@ -16,9 +16,23 @@ output-folder: $(azure-libraries-for-java-folder)/azure-mgmt-communication
 
 ``` yaml $(java) && $(multiapi)
 batch:
+  - tag: package-2020-08-20
   - tag: package-2020-08-20-preview
 ```
 
+### Tag: package-2020-08-20 and java
+
+These settings apply only when `--tag=package-2020-08-20--java` is specified on the command line.
+Please also specify `--azure-libraries-for-java=<path to the root directory of your azure-sdk-for-java clone>`.
+
+``` yaml $(tag) == 'package-2020-08-20' && $(java) && $(multiapi)
+java:
+  namespace: com.microsoft.azure.management.communication.v2020_08_20
+  output-folder: $(azure-libraries-for-java-folder)/sdk/communication/mgmt-v2020_08_20
+regenerate-manager: true
+generate-interface: true
+```
+
 ### Tag: package-2020-08-20-preview and java
 
 These settings apply only when `--tag=package-2020-08-20-preview --java` is specified on the command line.
diff --git a/specification/communication/resource-manager/readme.md b/specification/communication/resource-manager/readme.md
index f9e55f031a15..45d697427a39 100644
--- a/specification/communication/resource-manager/readme.md
+++ b/specification/communication/resource-manager/readme.md
@@ -28,7 +28,16 @@ These are the global settings for the Azure Communication Services API.
 title: CommunicationServiceManagementClient
 openapi-type: arm
 openapi-subtype: rpaas
-tag: package-2020-08-20-preview
+tag: package-2020-08-20
+```
+
+### Tag: package-2020-08-20
+
+These settings apply only when `--tag=package-2020-08-20` is specified on the command line.
+
+```yaml $(tag) == 'package-2020-08-20'
+input-file:
+  - Microsoft.Communication/stable/2020-08-20/CommunicationService.json
 ```
 
 ### Tag: package-2020-08-20-preview
diff --git a/specification/communication/resource-manager/readme.python.md b/specification/communication/resource-manager/readme.python.md
index 74a33158e6ad..94ed970f40ac 100644
--- a/specification/communication/resource-manager/readme.python.md
+++ b/specification/communication/resource-manager/readme.python.md
@@ -13,7 +13,7 @@ python:
   payload-flattening-threshold: 2
   namespace: azure.mgmt.communication
   package-name: azure-mgmt-communication
-  package-version: 1.0.0rc1
+  package-version: 1.0.0
   clear-output-folder: true
 ```
 
@@ -37,7 +37,7 @@ azure-arm: true
 license-header: MICROSOFT_MIT_NO_VERSION
 package-name: azure-mgmt-communication
 no-namespace-folders: true
-package-version: 1.0.0rc1
+package-version: 1.0.0
 ```
 
 ```yaml $(python) && $(python-mode) == 'update' && $(track2)