Core Telephony framework partially public in 4.0

Question

Since I don\'t want to jailbreak my iPhone i\'m developing a personal application that needs to access the Core Telephony framework.

In 4.x Core Telephony framework

Answer 1

You can't use the public CoreTelephony call events handler with the private CoreTelephony functions like CTCallDisconnect. You can see a working example of the required private event handler code here: http://tech.ruimaninfo.com/?p=83 - they key bits:

// Register our event handler
id ct = CTTelephonyCenterGetDefault();
CTTelephonyCenterAddObserver(ct, NULL, callback, NULL, NULL, CFNotificationSuspensionBehaviorHold);

// Our callback
static void callback(CFNotificationCenterRef center, void *observer, CFStringRef name, const void *object, CFDictionaryRef userInfo)
{
    NSString *notifyname=(NSString *)name;
    if ([notifyname isEqualToString:@"kCTCallIdentificationChangeNotification"])
    {
        NSDictionary *info = (NSDictionary *)userInfo;
        CTCall *call = (CTCall *)[info objectForKey:@"kCTCall"];
        NSString *caller = CTCallCopyAddress(NULL, call);
        NSLog(@"Incoming call: %@",caller);
        CTCallDisconnect(call);
    }
 }

I've confirmed this working on iOS5.1