Phone hacking

So it turns out that my spanky-new VOIP provider (I got my final bill from Eircom and they owe me money) has just started beta testing web service for account management. Well this is kinda cool, since I was able to import this directly into Cape Clear / Eclipse and quickly implement time- and SMS (via gateway)-controlled call-forwarding. This is cool and I really look forward to the day when all my basic services are web-service enabled. What kind of crazy web-service mashups could you have? Routing calls / screening calls on the basis of the alcohol levels detected in fridge?