I just found out that my office phone is reachable as a Voice over IP address. So if you have a SIP compatible phone you can find out if I am in the office (sip:sspaeth@ethz.ch). Cool. Now I just have to find out if I can forward my office number to any SIP account as well, so I can take office calls when I’m at home.

I’d also like to reactivate my VoIP phone. One of the difficulties is still that different SIP providers are difficult to reach. So should I activate my German sip account (with a German landline number), my Swiss account, or my sipphone account (which includes a jabber account and works with google talk)? Or all of them together? Difficult questions…