Get the Callers Phone Number from an Incoming Call on Iphone

Get the callers phone number from an incoming call on iPhone

###EDIT###

iOS 10 and above:

Use Callkit, take a look at call directory extension

According to documentation,

Identifying Incoming Callers

When a phone receives an incoming call, the system first consults the user’s contacts to find a matching phone number. If no match is found, the system then consults your app’s Call Directory extension to find a matching entry to identify the phone number. This is useful for applications that maintain a contact list for a user that’s separate from the system contacts, such as a social network, or for identifying incoming calls that may be initiated from within the app, such as for customer service support or a delivery notification.

For example, consider a user who is friends with Jane in a social networking app, but doesn’t have her phone number in her contacts. The social networking app has a Call Directory Extension, which downloads and add the phone numbers of all of the user’s friends. Because of this, when the user gets an incoming call from Jane, the system displays something like “(App Name) Caller ID: Jane Appleseed” rather than “Unknown Caller”.

To provide identifying information about incoming callers, you use the addIdentificationEntry(withNextSequentialPhoneNumber:label:) method in the implementation of beginRequest(with:).

class CustomCallDirectoryProvider: CXCallDirectoryProvider {
    override func beginRequest(with context: CXCallDirectoryExtensionContext) {
        let labelsKeyedByPhoneNumber: [CXCallDirectoryPhoneNumber: String] = [ … ]
        for (phoneNumber, label) in labelsKeyedByPhoneNumber.sorted(by: <) {
            context.addIdentificationEntry(withNextSequentialPhoneNumber: phoneNumber, label: label)        
        }

        context.completeRequest()
    }
}

Because this method is called only when the system launches the app extension and not for each individual call, you must specify call identification information all at once; you cannot, for example, make a request to a web service to find information about an incoming call.

iOS 9 and earlier:

As Kakshil mentioned, Caller ID is not possible on non jailbroken devices.

And I will give you some findings on how true caller works,

1. Its not reading the call history, they actually created Action
   extension, wherever you try to share a contact, it will display
   truecaller app extension, which coded for showing the contact
   details fetched from their server

2. You might also get confused with push notification received for few
   calls, saying
   "Some X calls you". This is where truecaller used a trick. If you
   noticed clearly, that push notification will be received only when
   you get a call from an android user with truecaller installed. Let
   me explain you in details,

X(android user with truecaller installed), calling Y(ios user with truecaller installed), the android version notify the server that X making call to Y. And server will send push notification to Y's iPhone.

How can I get the callers phone number from an incoming call on iphone

Not possible.

However you may get the information like call state(connected/disconnected etc) using CoreTelephony framework.

How to use call directory extension to identify a incoming call in my application?

If this question is not how to write a call directory extension, but how to get the number of an incoming call, which I think is what the question is, then its not possible.

The call directory extension is not involved when there is an incoming call. All it does is register numbers that get stored in an internal SQL database that is private to the phone app. The call directory extension does NOT get run when there is an incoming call and therefore it and your app are not able to identify the number of an incoming call, this is the same as it has always been, it has not changed in iOS 10.

There is new functionality for call detection for Voip apps that was added in iOS 10, but if you are not a voip app you still cannot obtain the number of an incoming (or outgoing) call.

Swift IOS get notified about incoming calls for defined phone numbers

CallKit only allows your own VoIP app to gain access to the native phone UI. It does not allow you to create an app that is able to interact with calls coming to the native phone app (the device's actual phone number). So if you created your own VoIP app that receives calls then you can use the Call Directory functionality to work with incoming calls, but you are not able to use Call Directory to have your app gain access to the system phone.

---

Related Topics