Sky may be awkward about giving out details however I will relate what BT did.
On their 2-wire hubs there were 2 VoIP lines on analogue ports. For most people it was a case of go to a specific website and based on user ID it would configure the port with you chosen VoIP number.
If you wanted to use your own VoIP interface, a call to the tech support desk would give two options. They would tell you how to intercept the parameters of it Or if you were willing to allow remote access they would login and grab the data for you.
Try calling support of not you may need some intercept software. One you have it most hardware will work. I prefer Gigaset
M H C
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