This blog is one of five dealing with the encryption of various Cisco UC devices. This particular piece deals with setting up encrypted calls between phones on a cluster and Cisco Unity Connection. The other blogs in this series are, Configuring Calling Encryption Between Cisco IP Phones, Configuring CUCM with Secure LDAP, Configuring Secure Hardware Conferencing, and Configuring a Secure Voice Gateway. The information in the LDAP article stands on its own, but the steps in “Configuring Calling Encryption Between Cisco IP Phones” must be followed before one can configure any of the items in the other pieces.
The steps detailed in these blogs may not be the final word on all of the ins and outs of configuring the items. However, we discovered that there are very few – or no – articles dealing with these subjects written by someone who has actually performed the tasks. We therefore felt it would be a service to offer information about the steps that worked for us in our specific set of circumstances (particularly since we, apparently, fell into most of the traps).
Comments are welcome and we will be happy to update these blogs if need be.
At this point you should be done. Look back at CUCM and if the ports come up as being registered, you’re set. If they don’t, go back over steps 1-7 carefully. The final test is to hit the Messages button on one of your secure phones and make sure that when CUC answers, the lock icon is displayed next to the caller ID just like it is when you make a secure call.
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Nick has over 20 years of experience in Security Operations and Security Sales. He is an avid student of cybersecurity and regularly engages with the Infosec community at events like BSides, RVASec, Derbycon and more. The son of an FBI forensics director, Nick holds a B.S. in Criminal Justice and is one of Cisco’s Fire Jumper Elite members. When he’s not working, he writes cyberpunk and punches aliens on his Playstation.
Virgilio “Bong” has sixteen years of professional experience in IT industry from academe, technical and customer support, pre-sales, post sales, project management, training and enablement. He has worked in Cisco Technical Assistance Center (TAC) as a member of the WAN and LAN Switching team. Bong now works for Tech Data as the Field Solutions Architect with a focus on Cisco Security and holds a few Cisco certifications including Fire Jumper Elite.
John is our CTO and the practice lead for a talented team of consultants focused on designing and delivering scalable and secure infrastructure solutions to customers across multiple industry verticals and technologies. Previously he has held several positions including Executive Director/Chief Architect for Global Network Services at JPMorgan Chase. In that capacity, he led a team managing network architecture and services. Prior to his role at JPMorgan Chase, John was a Distinguished Engineer at Cisco working across a number of verticals including Higher Education, Finance, Retail, Government, and Health Care.
He is an expert in working with groups to identify business needs, and align technology strategies to enable business strategies, building in agility and scalability to allow for future changes. John is experienced in the architecture and design of highly available, secure, network infrastructure and data centers, and has worked on projects worldwide. He has worked in both the business and regulatory environments for the design and deployment of complex IT infrastructures.