VLAN Security Tips - Best Practices by Firewall.cx

Our popular VLAN Security article provides guidelines and CLI commands (Catalyst Switches) aimed to increase the security of organization's VLAN infrastructure, conserve valuable bandwidth between links, plus much more. This article was also featured on a popular US Security-Technology magazine.

http://www.firewall.cx/cisco-technical-knowledgebase/cisco-switches/818-cisco-switches-vlan-security.html

CallManager Express Setup for IP Phone Firmware Upgrade - How to Upgrade Your Cisco IP Phone Firmware

Learn how to upgrade your Cisco IP phone firmware. Covered topics include: Setup CallManager Express DHCP & TFTP Server for IP Phones, commands to upload & extract SCCP - SIP firmware files (cmterm-xx.tar), plus important information for the firmware upgrade process.

http://www.firewall.cx/cisco-technical-knowledgebase/cisco-voice/930-cisco-phone-upgrade.html

CallManager Express & UC500 Series: Changing Background Images on a Cisco IP Phone

Installing a customized background image on a Cisco IP Phone and CallManager Express. This article shows you how to install different background pictures on your Cisco IP Phone.

http://onlywire.com/r/84696878