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About Contact Form 7 – Phone mask field
This plugin allows you to add a phone number mask to your Contact Form 7. You need to have Contact Form 7 installed and activated, and then a new "mask field" will be available for you to use in your forms. The mask can include any numeric character.Screenshots

Frequently asked questions
What does this plugin do?
This plugin adds a new field to Contact Form 7, allowing you to set a phone number mask or other masks.
Are there any prerequisites for using this plugin?
Yes, Contact Form 7 version 5.0.3 or later must be installed and active.
How do I add a mask field to my form?
A new 'mask field' button will be added to the Contact Form 7 panel. You can use a shortcode like [mask* your-tel "mask" "Placeholder"].
What does '_' mean in mask definitions?
In mask definitions, '_' represents any numeric character.
Changelog
1.0
- First released version.
1.1
- Added support for the placeholder field.
1.2
- Added a form-tag generator field for the placeholder value.
1.3
- Added support for the type value.
1.4
- Remove autoclear. Added filter “wpcf7mf_validate_mask_units”. Mask definition “*” changed to “.”
1.4.1
- Removed any character mask definition (“.”)