### Introduction
The phone input pattern is a progressive enhancement of a textbox that provides as you type phone pattern for country. The country is selected with listbox button.
### Working Examples
Experience the pattern in action on our companion [eBay MIND Patterns examples](https://opensource.ebay.com/mindpatterns/input/phone-input/index.html) website.
View a fully styled example in our [eBay Skin CSS framework](https://opensource.ebay.com/skin/component/phone-input/).
### Terminology
**Phone Input:** The pattern as a whole, a composite component containing a listbox button and a textbox.
**Listbox Button**: The button that opens listbox of countries.
**Textbox**: A regular HTML text (type=tel)
**Country code:** The telephone dialing code of a country (e.g. +1 for United States of America)
**Phone number:** The telephone number excluding the country code.
### Best Practices
Phone input group **could** have an accessible label.
Listbox button label must have an accessible label. Check [listbox button](/mindpatterns/input/listbox-button.md) best practices.
Textbox must have an accessible label.
Textbox should **not** be split to multiple input boxes.
Textbox can have an attribute `autocomplete=tel-national`. While `autocomplete` is a promising technique for supporting personalization in HTML, support for this in AT is fairly limited.
### Interaction Design
This section provides interaction design for keyboard, screen reader & pointing devices.
#### Keyboard
The button **must** be keyboard focusable.
Listbox button and textbox sit in the page's natural tab sequence.
When Listbox button has focus, `TAB` key must move keyboard focus to textbox.
When textbox has focus, `TAB` key moves focus to the next interactive element in the page.
#### Screen Reader
Field set (group label) **must** be announced (e.g. Phone number).
Listbox button label **must** be announced (e.g. Country code USA +1, Country code UK +44).
Listbox button state **must** be announced (e.g. expanded or collapsed).
Textbox label **must** be announced (e.g. 'phone number').
#### Pointer
Clicking any listbox item **must** activate that item.
### Developer Guide
This section is not yet available.
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