Yup.... confirmed - for us as well that was the root cause of the issue --. what's more, I noticed it has to be a private phone since the Business phone doesn't end up in the Recrutiment on the candidate profile.
xavierlegarrec - thank you so much for this tutorial - you're my VRP and CMP hero as it's another time I'm using your pro tips to tackle some more complicated requirement from the customer.