Upgrading CUPS to include ipp support This page reorganizes the operational steps for Upgrading CUPS to include ipp support. You can receive a FAX and have it directly printed to your printer using the IPP protocol. To do so, besides the port forwarding to allow the PBX to reach directly the printer port, you need to install a Cups package containing the ipptool command. On CentOS 6, it can be done using the Cups packages available at the PBX web address For example you can run: yum -y install the PBX web address the PBX web address the PBX web address the PBX web address Current Verification After applying the change, verify the related MiRTA PBX page, the Asterisk logs, and the relevant Status menu entry. Recheck tenant selection before testing tenant-specific behavior.