Sharing calender via internet to Outlook desktop

[stein.joar@svanoy.com]

I recently got a warning on Outlook that my very well functioning calendar sharing system with colleagues that are not on the same intranett/exchange server via windows live/ office.com, is closing down at 5 April. We could relatively easily import the calendars to our own desktop Outlook and view it as a single, and frequently updating, calendar together with other calendars. As such we got a good overview and could plan activities.

The message and office help file I got to help me with the new way of sharing via internet was based on Outlook.com. So what happens is that we can get a calendar up going on Outlook.com (hopefully it is also updating as it used to wia Office.com, but I doubt it since we had to save a iCal-version to upload it) but we cannot find the way to import such "colleague"-calendar down to desktop Outlook where we want to have it for full overview on a single place.
So what shall we do? I have not found any help files or forum threads delaing with this, but maybe I overlooked some?