Definitive Asterisk for engineers
5.0(3)CWISA Wireless IoT Solutions Administrator
5.0(3)Advanced Satellite communications
5.0(3)Linux system administration (LPIC-1)
5.0(3)UNIX system administration
5.0(3)CompTIA A+ bootcamp essentials and electives
5.0(3)Linux engineer certification 1 (LPIC-2)
5.0(3)Linux fundamentals LPI 010
5.0(3)