As for anroid phone to display an additional address book fields?

look, for example in the address book of Google I score custom field for the phone number: subscriber's address, and his duty to pay for services(it must be with CRM to synchronize googlewww address book).
I would like to display these fields on the screen of the mobile when calling this number.
Maybe someone knows a ready solution? And if not, then in theory it's possible to implement? (As I understand it, out of the box Android doesn't do that.)
March 23rd 20 at 18:46
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