Essential call centre technologies
5.0(3)Debian system administration
5.0(3)CentOS system administration
5.0(3)Suse system administration
5.0(3)Ubuntu system administration
5.0(3)Total Video conferencing over IP for engineers
5.0(3)Essential Satellite communications
5.0(3)Essential Carrier Ethernet course
5.0(3)Definitive Samba for engineers
5.0(3)