Cloud calling is a catalyst for business transformation—enabling unlimited scalability, operational agility, and AI-powered innovation. But for many enterprises, the journey to the cloud comes with a critical concern: the risk of downtime. Calling is mission critical, and even brief disruptions can have outsized business consequences.
With over 25 years of experience in enterprise telephony, Cisco understands the high bar enterprises set for calling reliability, security, and performance. To meet these expectations, we’ve engineered Webex Calling to deliver cloud calling with enterprise-grade assurance through global infrastructure built for business continuity, and innovations that ensure calling is always available, even when the cloud is not.
Global infrastructure for resilient communication
Webex Calling is available in 180+ markets around the world through a globally distributed data center architecture purpose-built for high performance and resilience. With over 20 data centers and media points of presence (PoPs) strategically deployed worldwide, our infrastructure operates in active-active configurations to ensure high availability, low latency, and seamless failover.
Dynamic traffic routing, real-time monitoring, and built-in disaster recovery keep your calls crystal-clear and uninterrupted—even during local outages or natural disasters. It’s cloud infrastructure built for enterprise-grade performance and the peace of mind your business demands. For government agencies and contractors, Webex for Government offers a FedRAMP Moderate authorized cloud calling solution, delivering secure, compliant, and reliable communication that meets stringent federal requirements.
Proven, enterprise-grade performance
Our globally distributed infrastructure has consistently delivered 99.999% availability over the past 24 months—that equates to less than six minutes of downtime per year. This enterprise-grade reliability reflects Cisco’s commitment to operational excellence, with geo-redundant data centers, active-active architecture, and intelligent traffic management ensuring always-on performance.
To reinforce that commitment, we back Webex Calling and Webex Contact Center with a 99.999% SLA. It’s a promise of consistent, high-performance communication enterprises can trust.
Survivability that goes beyond 99.999%
Mission critical industries like healthcare, financial services, retail, and government must also consider situations where the cloud is inaccessible, such as during extreme events like natural disasters. For these businesses, Webex Calling offers advanced survivability options that ensure calling remains operational even when the cloud is unavailable, providing the reliability and continuity these industries demand when it matters most.
Webex Calling is available with two survivability options:
- Enhanced Survivability for Dedicated Instance is an industry-first solution that maintains full access to the entire Cisco Unified Communications Manager (UCM) feature set, even when the cloud is unreachable. It’s a vital capability for enterprises that integrate UCM deeply into their workflows and integrations, and can’t afford disruptions.
- Site Survivability for Webex Calling preserves core calling functionality in multi-tenant environments, using a local gateway to keep communication online during network interruptions. It’s a critical safeguard that ensures your business never loses access to essential voice services.
Cloud Calling Without Compromise
In today’s always-on world, downtime is not an option—especially for organizations where communication is mission-critical. Webex Calling is purpose-built to meet these demands, delivering proven 99.999% reliability, supported by a globally resilient infrastructure and industry-first survivability options. Whether you’re operating in healthcare, finance, government, or deploying Webex Contact Center, Webex Calling ensures your business stays connected—even when the unexpected happens.
Learn more:
Site Survivability for Webex Calling
Enhanced Survivability for Webex Calling
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