Here: http://www.gnutelephony.org/index.php/GNU_SIP_Witch http://www.gnutelephony.org/index.php/GNU_SIP_Witch I found this by following two links from the artic

Here: http://www.gnutelephony.org/index.php/GNU_SIP_Witch http://www.gnutelephony.org/index.php/GNU_SIP_Witch I found this by following two links from the article. But it was random luck, I agree with you that the article lack of some important informations.