Yes, I was at work on Bank Holiday Monday. That is to say, I wasn't on holiday with my boat down in Poole Harbour as planned. Instead, I was copying files from my desktop to my notebook, packing my bags, and trying to arrange to swap phone lines at the office. I failed on the last.
Security is, of course, very important.
The trick is very easy. Yes, there are definitely security issues. No, of course this isn't secure, and it can' t be made secure and worse, it looks as if it is secure. A proper LAN monitor would probably be able to trace an Internet call. So I planned to switch my voice line to the modem, and get calls to the voice line to go straight through to voice-mail.