Will this be ok - Phone connections

Right basically i need to know if this woll work ok

Basically i have one socket and well the diagram below should show the rest

Here is a pic of my socket
In the 3 way adapter you can see follows
http://www.batista.co.uk/images/DSCI0149.JPG

Top white wire goes to sky +
Middle black wire is for a cordless phone with 2 handsets
Bottom white wire is for a phone and 2 sky digital boxes

Excuse the poor image i am rubbish at drawing
http://www.batista.co.uk/images/Setup.JPG

I dunno if stbs count towards the pip(not sure if thats correct term but there is a maximum number of devices per line) 5 devices and a router might push it a bit on the power side as phones lines carry current.Not really up to speed but Its wired ok its just the power side

[MovedGoalPosts]

It's the REN that can be an issue - I think total is allowed to be 4. The REN of each phone, or whatever used to be printed on a sticker underneath.

It may well work OK, if you switch the ringer off on some of the phone devices. Items such as the Sky box I suspect don't actually need to answer, but just need to dial out for when you use interactive.

The 2 phones both have a ren of 1