Difference between mobileNumber and phoneNumber

[herawo]

How could i make the difference between the mobileNumber and the phoneNumber with LaPoste since the template for an address is

<address>
        ...
	<mobileNumber>{{ address.phone }}</mobileNumber>
        ...
</address>

I'm thinking about making a pull request about that, is there anything I should know before?

[herawo]

Is there a specific reason for not having phoneNumber in the expeditor info? because actually the mobileNumber is not displayed in the expeditor area of the generated label, I suppose it's mandatory to have a PhoneNumber field to have this number displayed.