During the formating method, the country code
was compared to the country phone code. Indeed,
phonenumbers python lib return a `PhoneNumber`
object having a `country_code` attribute
refering to the country_phone_code, and not
the country_code (like odoo means).
Consequence: changing the country on a lead
did not make the phone validation work.
Thus, it was required to give both code (country
and country phone codes) to the phonenumbers API,
in order to make a correct verification.
Using phonenumbers library this module adds tools methods as well as a
small mixin for models that want to activate phone number validation
and formatting.
Formatting can be done always using an international format or having
both national and international format. This is configured on the
company.
Note that phonenumbers library is optional. Installing this module without
having the lib installed just skip its use but should not crash.
Pierre Rousseau