Secure CallManager Express Communications - Encrypted VoIP Sessions with SRTP and TLS

In this article Cisco's double CCIE and UC expert Akhil Behl shows how to securely configure CallManager Express communications system using voip encryption SRTP and TLS. Included are all necessary CLI commands to create certificate authorities, enable encryption and much more!

http://www.firewall.cx/cisco-technical-knowledgebase/cisco-voice/956-cisco-voice-cme-secure-voip.html

Cisco & CompTIA Certification Offer - Save 60% on Certification Video Training For CCNA Security, CCNP Voice, CompTIA Network+ and Security+

Prepare for your Cisco and CompTIA exams with expert video training from LiveLessons with 60% discount offers. Limited time only!

http://www.firewall.cx/news/157-Certification/955-cisco-certification-training-offer.html

Tweet Chat with Cisco Double CCIE Expert Akhil Behl, May 7, 2013

Learn about Cisco Collaboration Security and Cisco UC Deployment at Cisco's Support Community Tweet Chat with CCIE and VoIP expert Akhil Behl.

http://www.firewall.cx/news/149-Networking/955-news-tweet-chat-with-cisco-ccie-expert-akhil-behl.html

Cisco Catalyst 4500 Series Zero-Downtime IOS Upgrade Process for Supervisor Engine 7-E, 7L-E, 6L-E and V-10GE Redundant Configurations

Learn to upgrade the Supervisor Engine IOS on Catalyst 4503-E, 4506-E, 4507R+E & 4510R+E. Perform Redundant Supervisor Engine IOS upgrade with zero service interruption (4507R/4510R Series only), force switchover to redundant Supervisor Engine and check status of your Supervisor Engines and line cards.

http://www.firewall.cx/cisco-technical-knowledgebase/cisco-switches/952-cisco-switches-4500-supervisor-engine-ios-upgrade.html

Cisco Catalyst 4507R+E Layer 3 Installation: Redundant WS-X45-SUP7L-E Supervisor Engines & WS-X4648-RJ45V+E Line Cards

Experience the setup of a Cisco 4507R+E Catalyst switch with 21 real photos capturing redundant SUP7L-E Supervisor engines, WS-X4648-RJ45V+E - 48 port 10/100/1000 PoE line cards and dual 4200Watt power supplies. 21 pictures capture details of all components & highlights of the 4507R+E Catalyst switch.

http://www.firewall.cx/cisco-technical-knowledgebase/cisco-switches/948-cisco-switches-4507re-ws-x45-sup7l-e-installation.html

Major Changes & Updates to the Cisco CCNA Exam

Cisco CCNA exam updates and major changes effective from 26th March 2013. Read our announcement to learn about Cisco's major changes to the CCNA certification path and exam availability.

http://www.firewall.cx/news/157-Certification/947-cisco-ccna-update.html

Interview: Vivek Tiwari CCIE #18616 (CCIE Routing and Switching and Service Provider)

Read our interview of author & double CCIE #18616 Vivek Tiwari. Vivek tells us about his exciting CCIE journey, daily routine at Cisco Systems, resources CCNA,CCNP,CCVP & CCIE candidates can use, what he thinks about Firewall.cx, plus a number of useful tips and guidelines for your certifications and work.

http://www.firewall.cx/cisco-technical-knowledgebase/ccie-experts/946-interview-ccie-vivek-tiwari.html