Our great friend, Denis Smirnov (ds@xxxxxxxxx) aka Mithraen was so kind to adopt the chan_ss7 to compile and run in 1.4b ! I'm sure that I will not be the only, who will enjoy that! Tarball is available on the Denis ftp site: http://download.seiros.ru/SeirosPBX/sources/chan_ss7.tar.gz Please note you will need to link zaptel src directory (to have it found fasthdlc.h) to a tarbal directory and (for me) it compiles with the command: make clean INCLUDE="-I/usr/src/zaptel -I/usr/src/asterisk/include" make chan_ss7.so Regards, Anton.