Sync Iphone to Libre Office Contacts

We use Libre Office for our business.
Would like to sync the contacts in the Libre office with our I-Phones.
Is this possible?

Thank You!

Where are contacts in LibreOffice? AFAIK all address data in LibreOffice are from external resources (TB address book, …). So why to import to LibreOffice and then sync to other devices. Use the original application to sync to other devices like IPhone.