How to Enable & Disable Phone Ports on Cisco ATA 186/188 for CallManager - CallManager Express

This article shows how to enable or disable the first or second phone port on the Cisco SCCP ATA 186/188 telephony adaptor. Learn how to identify Cisco SCCP/SIP ATA phone ports on CUCME (CME), plus the parameters-changes required to disable or enable them.

http://www.firewall.cx/cisco-technical-knowledgebase/cisco-voice/918-cisco-voice-ata-ports.html

Forcing Your Cisco Catalyst Switch To Use 3rd Party SFP Modules

This article shows how to configure your Cisco Catalyst switch 2960G, 3560G, 3750G, 4507R to use 3rd party SFPs. Learn the secret CLI commands required, to maximise your catalyst switch's compatibility with 3rd party sfp's. Discover where 3rd party SFPs can be used without hesitation.

http://www.firewall.cx/cisco-technical-knowledgebase/cisco-switches/866-cisco-switches-3rd-party-sfp.html

How To Secure Your Cisco Router Using Cisco AutoSecure Feature

This article covers the Cisco AutoSecure feature and explains how it can be used to properly secure your Cisco router(s) using Cisco's recommended security practices.

http://www.firewall.cx/cisco-technical-knowledgebase/cisco-routers/865-how-to-secure-your-cisco-router-using-cisco-autosecure-feature.html