I updated the Asterisk and Zaptel packages to the latest release, using RPM spec files only slightly modified from those of Matthias Saou. The SRPMs and binary RPMs for the x86_64 may be found at: http://www.brouhaha.com/~eric/software/fedora/fc4/asterisk/ Thus far I've only tested use with the Zaptel ztdummy kernel module (i.e., no telephony hardware) using Asterisk as a conference bridge with the GSM codec. That seems to work fine. I'll forward my very minor spec file changes to Matthias. Eric