Hello, The software contains bug fixes for parallel prepaid calls. Changelog since 6.6.8 cdrtool (6.6.9) unstable; urgency=low * Purge old entries from prepaid_history table * Fixed wrong return to call control engine because sessionDoesNotExist variable was not initialized properly at each request * Print the call id in the syslog when calculating rate The software can be downloaded from: http://download.ag-projects.com/CDRTool/ For people running Debian testing or unstable on an i386 architecture there is an official public repository provided by AG Projects. To use it, add these lines in /etc/apt/sources.list # AG Projects software deb http://ag-projects.com/debian unstable main deb-src http://ag-projects.com/debian unstable main Install the AG Projects debian software signing key: wget http://download.ag-projects.com/agp-debian-gpg.key apt-key add agp-debian-gpg.key After that, run: apt-get update apt-get install cdrtool Regards, Adrian