Couldn't you just call in via Skype (or similar) and make sure the other caller is doing a conference call direct to you via Skype at the same time. Then, even if the TalkShoe stream conks out you will still be able to record the interview? So barring incidents, TalkShoe is used, but if something goes haywire then you can just continue with a regular old Skype call which you record the old fashioned way?

So basically I'm just suggesting a backup system which is always running. So even if TalkShoe stops working part way through you won't need to do a thing as your backup system will still be working anyway - we just won't be able to call in that's all (or at least not without Skype calling you).