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Feb 18, 2021
3 min read

Calix Delivers the World’s Only Always On Network Platform, Eliminating Downtime for Service Providers When They Upgrade Their Intelligent Access EDGE Networks

SAN JOSE, CA – February 18, 2021 – Calix, Inc. (NYSE: CALX) today announced a significant update to AXOS® which expands infrastructure APIs to enable full modularity across network functions. This important update to the Intelligent Access EDGE solution allows communications service providers (CSPs) to isolate specific functions that are targeted for upgrades and keep the rest of the network operating with zero downtime during the upgrade. This in-service upgrade capability is the next step in enabling CSPs to run networks that fully meet the demands of subscribers, ensure an Always On service, and meet stringent service level agreements (SLAs).


As new services proliferate and network demand increases, the pace of new service rollouts is accelerating across markets. Increasingly, subscribers are also demanding network access 24 hours per day, seven days per week. Because the traditional maintenance window—between midnight and 5 a.m.—can interrupt as much as 25 percent of network traffic, many CSPs are struggling to keep up with the pace of upgrades. This breakthrough AXOS release enables CSPs to eliminate the maintenance windows commonly required between major upgrades while ensuring new services are rolled out rapidly. By eliminating these maintenance windows, AXOS gives CSPs the ability to deliver uninterrupted services to subscribers.


“As we continue to grow our network and connect more southern Colorado communities to fiber broadband, it is critical that we maintain network connectivity throughout the process,” said Josh Wehe, director of operations for Colorado-based Jade Communications. “With this new Always On in-service software upgrade capability, our subscribers are assured their connection to our network remains seamless. Partnering with Calix has already delivered massive operational efficiency improvements for us, and this new AXOS capability will ensure we continue to upgrade and maintain the services we deliver without the interruptions that might have marred our subscribers’ experiences previously.”


Built with a modular architecture, the AXOS platform delivers dramatically simplified and stateful operations that enable CSPs to ensure their access networks are Always On. By targeting a single software module for upgrade, AXOS enables the rest of the network to continue running uninterrupted. Furthermore, when the module is updated, it restarts exactly where it left off. The result is a complete in-service network update that enables CSPs to maintain subscriber connectivity throughout the process. 


“Scheduling software maintenance windows has historically been an unfortunate reality of operating a network but one that is necessary to fix critical software or system defects or to eliminate a vulnerability,” said Michel Langlois, chief development officer, Intelligent Access EDGE products for Calix. “Entering 2021, we are excited to give CSPs the ability to perform these complex changes without interrupting any of the services they provide. This expansion of our AXOS Always On capability ensures that critical network and system functions remain available even during software updates. When combined with the comprehensive, self-healing network capabilities of AXOS, this elimination of planned maintenance windows is an important step in the journey to decrease risk and eradicate operating costs from maintenance. This enables CSPs to be sure their connectivity will meet the ever-increasing, 24x7 demands of their subscribers while their networks continue to perform at their best.”


Learn more about the AXOS platform and its Always On capabilities.


About Calix

Calix, Inc. (NYSE: CALX) – Calix cloud and software platforms enable service providers of all types and sizes to innovate and transform. Our customers utilize the real-time data and insights from Calix platforms to simplify their businesses and deliver experiences that excite their subscribers. The resulting growth in subscriber acquisition, loyalty and revenue creates more value for their businesses and communities. This is the Calix mission; to enable communications service providers of all sizes to simplify, excite and grow.

This press release may contain forward-looking statements that are based upon management's current expectations and are inherently uncertain. Forward-looking statements are based upon information available to us as of the date of this release, and we assume no obligation to revise or update any such forward-looking statement to reflect any event or circumstance after the date of this release, except as required by law. Actual results and the timing of events could differ materially from current expectations based on risks and uncertainties affecting Calix’s business. The reader is cautioned not to rely on the forward-looking statements contained in this press release. Additional information on potential factors that could affect Calix's results and other risks and uncertainties are detailed in its quarterly reports on Form 10-Q and Annual Report on Form 10-K filed with the SEC and available at


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Calix, Inc. (NYSE: CALX)— Calix is a cloud and appliance-based platform and managed services company. Broadband service providers leverage the Calix broadband platform, cloud, and managed services to simplify operations, engagement, and service, innovate for their consumer, business, and municipal subscribers, and grow their business and the communities they serve.  
Our end-to-end platform and managed services democratize the use of data enabling our customers of any size to operate efficiently, acquire subscribers, and deliver exceptional experiences. Calix is dedicated to driving continuous improvement in partnership with our growing ecosystem to support the transformation of our customers and their communities.

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