[FLOW3-general] Add Collections to one Model

[flow3 at leakx.net]

Hello Together.

I create on an addressbook. In my Addressbook are two Models:

Contact and PhoneNumber.

Contact:
name:\TYPO3\Party\Domain\Model\PersonName
gender:integer
phonenumbers:\Doctrine\Common\Collections\Collection<\Package\Name\Domain\Model\PhoneNumber>
birthday:DateTime

PhoneNumber:
contact:\Package\Name\Domain\Model\Contact
title:string
phoneNumber:integer

The new contact form should contains a subform where I can add many 
Phonenumbers for the new contact.