POsted this on the other thread as well:
I can completely understand the frustration of having a set phonecall time, only for the dc to be unavailable, called away to dinner, asleep, in the bath - whatever. dh used ot get this all the time.
BUT - it is still totally unreasonable of you to expect a webcam on 24/7 for your dp's cnvenience.
the most you could push for would be for skype to be logged in when they are at home, so that your dp could call as and when, rather than the set time being always "inconvenient" - same as a phone call as and when - to be answered if the children are about, but not if they are busy.
doesn't get aorund the interference factor though.
private email is an absolute no.
dh didn't even ask for this when he was seconded abroad, and his dc were then 11 and 12, and well capable of haivng a private conversation with their dad. in fact, even at that itme, the children were not allowed unrestricted access to email him - they were allowed ot respond once a week, supervised by their mum (have to point out there was NO reason why they had ot be supervised fo rthis, nor why it should have been restricted. dh is a good father, and always has been).
but for your dp to want to just have an insight into his ex's house at any time is totally unreasonable.