replace iphone Number

gistfile1.txt

    NSString *str =@"123(3 24) +8678";
    NSString *result = [str stringByReplacingOccurrencesOfString:@"(" withString:@" "];
    result = [result stringByReplacingOccurrencesOfString:@")" withString:@" "];
    result = [result stringByReplacingOccurrencesOfString:@"+86" withString:@" "];
    result = [result stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
        result = [result stringByReplacingOccurrencesOfString:@" " withString:@""];
    NSLog(@"result:%@",result);