I wrote this post because the xs4all->KPN transition was messy, especially on the VoIP side.
Emails and letters were incomplete lacking some essential information for manual configuration; 2nd line help desk did not return calls; pointers to where to find correct information were lacking.
This kind of is a catch all post with most of the links I found without much of their content so I can refer to them later when writing a more detailed post on how I did get VoIP to work.
So: for my link archive, almost all posts in Dutch.
The Wiert Corner - irregular stream of stuff 