INZ aren't allowed to tell an applicant over the phone what decision has been recommended, even if they can see it in the records. So they told you all they are able to say - that your CO has finished working your case. Now you are going to have to wait for the proper procedures to happen. It's not possible to work out if your case still has to go for second-person checking. If it has, it may still be several weeks before you get an answer. Keep watching your online status - that is the place where you can expect to see any sign of the result first.