Like many of you I do a lot of international travelling. Often I stay in a country only one or two days. Friends, family and colleagues can reach me on my NZ phone number but I then pay hefty international charges for the incoming calls. Buying a local sim card doesn't work for such short stays and means I change phone number.

A 'global sim' seems to be a good solution. Intouchsmartcards offers several. Calls are usually about US$.99 outgoing and $.35 incoming. People ring a Monaco or Liechtenstein number which, using Skype or a discount international provider from a landline is very cheap. So it seems like a great way to stay in touch at not too high a cost (you need to top up the $99 sim card once a year to keep it active).

Anyone have any experience with this?
Thanks!