@Snixster Thank you that answers my question, but a pity second phone has no controls except viewing

My phone (the first linked to the camera) works great, followed the instructions to add my Wives phone, she activated her account, opens the app and the camera works well with sound and picture...

@Snixster thank you very much Luca and brook the problem solved just by restarting the app.

Excuse my ignorance but does this camera work when away from the home - that is, does it gives notifications when on other wifi networks or 4G, if so how do you connect to this service ????