Jonathan Rosenberg

Cisco Fellow and Vice President

CTO for Cisco's Collaboration Business

Jonathan Rosenberg is a Cisco Fellow and Vice President and CTO for Cisco’s Collaboration business. Jonathan is an industry veteran, having worked in IP communication and collaboration for 18 years. He has authored many of the Internet standards that define modern telecoms, including SIP, SIMPLE (SIP for presence and IM), and ICE. He has held numerous leadership positions in the IETF, is the fourth most prolific author of Internet standards of all time (with 70 RFCs), holds 52 granted US patents, has served on advisory boards of numerous startups, given nearly a hundred industry talks, and has received several industry awards, including being named to the Technology Review TR100 in 2002 – the 100 most innovative young technologists in the world. Prior to Cisco he was Chief Technology Strategist for Skype.


November 15, 2017


Cisco Collaboration: We Can’t Imagine a World without Microsoft

Cisco is investing more today in integration with Microsoft technologies than we have ever done before. Our philosophy has always been that we will support customers that want a mixed-vendor environment.

August 7, 2017


Universal Federation in Cisco Spark: Collaborate with Anyone

For 20 years, the holy grail of IP communications was to enable any-to-any communications. Now, universal federation brings any-to-any communications to the workplace with effective security and policy capabilities.

May 23, 2017


The Brains Behind the Beauty: Cisco Spark Board Technology

Exceptional user experiences happen at the intersection of design and technical innovation. Voice tracking, space binding, and wireless sharing are examples of the innovation of the award-winning Cisco Spark Board.

March 20, 2017


The Importance of Standards, IETF, and Interop to Collaboration at Cisco

The IETF has been the birthplace of countless technologies – like SIP – that have made the Internet what it is today. Standards like SIP are hugely important to Cisco, our collaboration products, and to our newest platform, Cisco Spark. And although we may be in the “post standards era,” there are many areas where application-layer standards like SIP remain essential even as IP communications moves to cloud.

February 15, 2017


Using Cisco Spark Teams to Manage My Team

For the past few months, I’ve been using Cisco Spark to manage the projects that my team is undertaking. As CTO in the Cisco Collaboration Technology Group, you can imagine we have some big projects to track. This has worked really, really well. It provides me a single place I can go to see all of my team’s initiatives in a single list. In the past, that list would be in a spreadsheet or a slide on my desktop, and I’d have to hunt for it. Now, with Cisco Spark it’s easy to find.

January 24, 2017


White Boarding in Cisco Spark: Always Yours, Always Live, Always Secure

When we started working on the Cisco Spark Board over a year ago, we looked at what makes a regular analog whiteboard so effective. One thing we identified is that anyone can use it. You can walk into any conference room, walk up to a whiteboard, and use it. The whiteboard is there, it’s easy to use, and easy to make your own. But recent digital whiteboard attempts by others have failed to meet the same standard for ease of use. We knew we had to do better.

December 9, 2016


R.I.P. Conference Room Projection Cable

You walk into a conference room, and you have a simple task – project your laptop screen onto the screen at the end of the conference room. Yet, until now, this simple task has been really hard. It’s time for this cable to meet its end. Today, we’ve shipped an update to Cisco Spark that will once and for all end the evil tyranny of the conference-room projection cable.

September 13, 2016


A Deeper Dive on Apple and Cisco

With the release of iOS 10, the Apple and Cisco partnership comes to fruition. iOS 10 allows apps like Cisco Spark to be built to take full advantage of the features in iOS 10. Ultimately, the goal of this integration is to allow users to keep using the iPhone the way they are used to using it – but have the actual calls handled by Cisco Spark. This delivers the best of both worlds.

June 13, 2016


Seamless Enterprise Calling on iPhone and iPad

With today’s announcements at Apple's WWDC, we've taken a huge step forward in delivering that capability to end users and IT departments. So let’s get real, what did we announce? The Cisco Spark app will leverage new iOS 10 features and APIs to deliver seamless voice and video calling.