ftp.ntua.gr:/mirror/slackware/slackware64-15.0/source/l/sip/?C=N&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[TXT] slack-desc                                       29-Nov-2018 21:17  844   
[TXT] sip.SlackBuild                                   02-Nov-2021 21:02  5.7K  
[   ] sip-4.19.25.tar.lz                               26-Feb-2021 17:28  641K
Apache/2.2 Server at ftp.grnet.gr Port 80