Peter
I thought I would test out the latest version v4.0.25 RVS/RVT but after experiencing problems with the following I gave up
When you record links it cuts the end off when it comes to playout.
You get a hiss when recording links 
I think it's the RVT client as I connect to v4.0.25 with my version V4.0.24 RVT and no problems at all
Records link's no problem
And no hiss
So after trying it out, I realised something was not right with version v4.0.25 but v4.0.24 we have no problems at all.
Yes I'm aware its beta but best to let you know so you can check it out before a full release

Just so you are aware we do use VPN for all our users 

John Williamson
Bay Trust Radio