Unless you're absolutely sure you know the answer to the question 'How resilient is the service?', don't move your video conferencing and calling to any cloud any time soon. Resiliency, by definition, is 'the power or ability to return to the original form, and recover from, or adjust easily to, misfortune or change'. There are many reasons why services are interrupted: hurricanes, snowstorms, floods, all resulting in loss of power. Then there's the data center and equipment used which may suffer a fatal, unforeseen technical fault. Whatever the cause, when equipment, networks or even whole data centers used by the provider go AWOL, it will be random, and in most cases, out of the control of the provider. Therefore, it is essential to understand how the service stands up to any unforeseen outage. So what does a truly resilient service look like? Well, it most definitely will not depend upon one point-of-presence (PoP) at one data center. For obvious reasons, the provider that only sites its service in one place is most at risk. Here, when an outage occurs, the service goes down and won't return until the problem is fixed or the power returns. There are some horror stories where whole cities lose power due to major weather fronts. There are other horror stories where the technical fault goes unresolved for an entire day or longer. The impact of either will cause you to question the veracity and reliability of using the service. When considering the cloud for any of your communications or application needs, you must examine the service provider's fault tolerance and service history. The best and most reliable service will be a globally-distributed and fully redundant environment that has multiple independent points-of-presence. At each of these PoPs it will have redundancy across the board, where the design ensures that a single hardware failure will not affect the service. It's not just equipment that needs to be doubled-up: the best services provide at least two network feeds to ensure continual service should one feed fail. In the exceptional circumstances of entire failure at one location, a resilient service will immediately roll over to an alternative PoP, and in doing so will ensure that all customers' data is secure and maintained. To find out more about what is required from a cloud video conferencing and calling provider, read this whitepaper from StarLeaf. It clearly explains the need for resilience and disaster recovery and how it guards against service outage to deliver continuity. Download Whitepaper