How to make it work on WP 4.1 ?

Any Idea how to add phone module on WP 4.1?

i tried this and its not working:

Adding to what Wbennet said this is what I did to make it work.

Using CF7 3.8

in wp-content/plugins/contact-form-7/includes/shortcodes.php
line 171
Change
private function shortcode_parse_atts( $text ) {
to
public function shortcode_parse_atts( $text ) {

Then in
wp-content/plugins/contact-form-7-phone-mask-module/phone.php
line 71 and 200

Change

global $wpcf7_shortcode_manager;
$attr = $wpcf7_shortcode_manager->shortcode_parse_atts( $tag['attr'] );
to
$manager = WPCF7_ShortcodeManager::get_instance();
$attr = $manager->shortcode_parse_atts( $tag['attr'] );

https://www.ads-software.com/plugins/contact-form-7-phone-mask-module/