CoreTelephony Namespace

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The CoreTelephony namespace provides classes that provide information about the cellular network provider and the current call.

Classes

Name	Description
CTCall	Encapsulates a unique identifier for a call and it's state.
CTCallCenter	Holds a list of current calls and triggers events when their states change.
CTCarrier	Contains information about the application user's home cellular service provider.
CTCellularData
CTCellularPlanLifecycleProperties	Represents lifecycle properties for a cellular plan.
CTCellularPlanProperties
CTCellularPlanProvisioning
CTCellularPlanProvisioningRequest
CTCellularPlanStatus
CTCellularPlanStatusHintResult	This class holds the return values for an asynchronous operation.
CTQuickSwitchManager	Enables an app to register for and query a device's quick-switch state.
CTQuickSwitchManagerDelegate	Methods for responding to changes in a device's quick-switch state.
CTRadioAccessTechnology	Defines constants describing various telephone radio technogies.
CTSubscriber	Carrier information for a subscriber.
CTSubscriberInfo	Information on a subscriber to a telephone service.
CTTelephonyNetworkInfo	A class that holds information on the application user's cellular service provider.
CTTelephonyNetworkInfo.Notifications	Notifications posted by the CTTelephonyNetworkInfo class.
CTTelephonyNetworkInfoDelegate	This is a class that implements the interface ICTTelephonyNetworkInfoDelegate (for the protocol `CTTelephonyNetworkInfoDelegate`). Subclass this class to easily create a type that implements the protocol. An alternative is to create a subclass of NSObject and then implemented the interface ICTTelephonyNetworkInfoDelegate.
CTTelephonyNetworkInfoDelegate_Extensions	Extension methods to the ICTTelephonyNetworkInfoDelegate interface to support all the methods from the CTTelephonyNetworkInfoDelegate protocol.

Interfaces

Name	Description
ICTQuickSwitchManagerDelegate	Methods for responding to changes in a device's quick-switch state.
ICTSubscriberDelegate	This interface represents the Objective-C protocol `CTSubscriberDelegate`.
ICTTelephonyNetworkInfoDelegate	This interface represents the Objective-C protocol `CTTelephonyNetworkInfoDelegate`.

Enums

Name	Description
CTCellularDataRestrictedState	Enumerates data restrictions for RestrictedState.
CTCellularPlanCapability
CTCellularPlanProvisioningAddPlanResult	Enumerates the results of adding a cellular plan.
CTCellularPlanStatusAuthorization	Constants that indicate the authorization status for accessing cellular plan information for a phone number.
CTCellularPlanStatusAvailability	Constants that indicate whether the device has a cellular plan for a phone number.
CTCellularPlanStatusAvailabilityConfidence	Constants that indicate the system's confidence that the device has a cellular plan for a phone number.
CTErrorDomain	An enumeration whose values specify an error domain.
CTQuickSwitchState	Values that describe a device's quick-switch status.

Delegates

Name	Description
CTCellularPlanProvisioningAddPlanCompletionHandler
CTCellularPlanProvisioningUpdateCellularPlanCompletionHandler
CTCellularPlanStatusAuthorizationCompletionHandler	Handles the result of a cellular plan status authorization operation.
CTCellularPlanStatusCheckValidityCompletionHandler
CTCellularPlanStatusGetTokenCompletionHandler
CTCellularPlanStatusHintCompletionHandler	Handles the result of a cellular plan status hint operation.
CTQuickSwitchManagerCompletionHandler	Handles the completion of a quick-switch manager operation.
CTQuickSwitchManagerStateCompletionHandler	Handles the result of a quick-switch state query.

Remarks

The APIs in this namespace are used to fetch information about the cellular network provider and the current call.