Hi, I am a telecommunications engineer, I work with many types of computer networks and telephone networks: PBX - analogue - digital - IP; SIP Gateways, Register Server, Proxy, Dialers, LAN, WAN, WLAN, Embedded Systems etc ...
I am a supporter and developer of some free software projects and GNU / Linux.
I use a variety of Linux distributions like Debian and its derivatives, CentOS and other UNIX - i like FreeBSD.
I like too security networks, pentest and servers security.
I await your contact.
Thank you.