Recording sound/phone calls with WL500gp

[trampjuice]

I want to record my phone calls.

1. I can get a cheap USB sound card for about 2 Euros! (a 3.5mm mic in, + A/D convertor + 3.5mm output socket) like this

2. I can get a telephone recording adaptor lead for a few pounds/euros more...

3. I can plug then all together with a large 3.5mm Jack female to male extension lead

and into my WL500Gp via a USB 2.0 HUB.

My question - Is this possible?
What would I have to do in terms of software on the router?

Sure I can just plug in a recording mp3 player, but then i would have to worry about batteries, turning it on manually, getting to the right mode etc... I thought what better than record via the router and its USB to its networked HDD?

ref: https://forum.openwrt.org/viewtopic.php?id=6412