Dishko Hristov

Dishko is one of Stack8's expert Cisco Unified Communications Consultants. He works with clients everyday bringing them innovative solutions to their everyday UC challenges.

Recent Posts

Cisco Expressway Implementation Pitfalls

Posted by Dishko Hristov on Nov 12, 2018 9:22:51 AM
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Topics: Cisco, cisco expressway, troubleshoot

Enhancing the User Experience with Cisco Jabber

Posted by Dishko Hristov on Jul 11, 2018 10:51:28 AM

A company-wide rollout of any new application including Cisco Jabber can be fraught with challenges that may or may not be readily apparent to the organization. Even small issues can potentially jeopardize the success of an entire project. For this article, we will look at how proper planning and modeling can help eliminate these issues before they become big. 

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Topics: Jabber 12.0, cisco jabber, Jabber, presence server

Jabber and Public CA-signed Certificates (Part 3 of 3)

Posted by Dishko Hristov on Nov 16, 2017 12:19:30 PM

In this third article, we will expand upon what we learned in part 1 and part 2 regarding Jabber and how to renew your CA-signed certificates. In this final article, we will examen the certification process within Cisco Expressway.

It is important to note that for Jabber Mobile and Remote Access (MRA) feature as well as for Business to Business calls (B2B), it is mandatory to have a CA-signed certificate on the Expressway-Edge node. On the other hand, there is no such requirement for Expressway-Core. However, Stack8 recommends a CA-signed certificate to be used on both Expressway servers.

Another requirement is to cross upload all Root and Intermediate certificates on both nodes in order for the Secure Traversal Zone to be active and communication between two Expressway nodes to work.

Do not forget to verify, every time you renew your certificates, if there is a change on the Root or any of the Intermediate certificates and Upload all new chain certs in the Trusted Certificates section of the server.

 

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Topics: cisco expressway, cisco jabber, Jabber

Jabber and Public CA-signed Certificates (Part 2 of 3)

Posted by Dishko Hristov on Nov 15, 2017 11:34:02 AM
In part 1 we got a general overview of the certification process for Cisco Jabber. In this second of 3 parts, we will discuss how to renew your CA-signed certificates for Cisco Unified Communication Manager (CUCM), Cisco Unified Communication IM and Presence and Cisco Unity Connection.
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Topics: Jabber, CUCM, cisco jabber, Cisco CUCM

Jabber and Public CA-signed Certificates (Part 1 of 3)

Posted by Dishko Hristov on Nov 14, 2017 11:19:31 AM

Cisco Jabber gives you and your team the freedom to be productive from anywhere, on any device. Jabber enables you to access presence, instant messaging (IM), voice, video, voice messaging, desktop sharing, and conferencing Instantly.

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Topics: Cisco CUCM, Jabber, cisco jabber

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