Make calls from iPhone app [duplicate]

Answer 1

Try this:-

    NSString *phoneNumber = @"15555551212";
    NSString *dtmfAfterPickup = @"1234";

    NSString *telString = [NSString stringWithFormat:@"tel:%@,%@", phoneNumber, dtmfAfterPickup];
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:telString]];