## Syntax
```mermaid
%%{init: {
'theme': 'base',
'flowchart': { 'padding': '7', 'nodeSpacing': '20', 'rankSpacing': '20' },
'themeVariables': {
'fontSize': '11px',
'fontFamily': 'Arial'
}
}}%%
flowchart LR
Start((START)) --> | | PHONE_NUMBER_TO_INTERNATIONAL[PHONE_NUMBER_TO_INTERNATIONAL]:::quoted
PHONE_NUMBER_TO_INTERNATIONAL --> End((END))
```
## Purpose
The `PHONE_NUMBER_TO_INTERNATIONAL` SQL function evaluates to the phone number in international notation format. In case no country is specified, an E.164 notation is required.
Parameters:
- Phone: phone number as text.
- Country: country code as ISO 3166-1 alpha-2 code.
Returns: Phone number in international notation format.