public Phone createPhone(String phone, PhoneType phoneType)
	{
		try
		{
			Phone newPhone = new Phone(phone, phoneType);
			begin();
			manager.persist(newPhone);
			commit();
			
			return newPhone;
		}
		catch(PersistenceException e)
		{
			e.printStackTrace();
			rollback();
			throw e;
		}
	}