With the rise of cloud computing and its gradual implementation, various cloud-based service models have emerged. Communication, as one of the important components of the enterprise IT environment, naturally enters people's vision. The pioneering CIOs have put the cloud Communication (CaaS) is the next focus of ICT considerations.
Cloud computing in the narrow sense refers to the delivery and usage model of IT infrastructure, which refers to obtaining the required resources through the network in an on-demand and easily scalable manner; broad cloud computing refers to the delivery and usage model of the service, which refers to the on-demand and easily scalable through the network Way to get the service you need. This service can be IT and software, Internet related, or other services. Cloud computing (Cloud CompuTIng) is grid computing (Grid CompuTIng), distributed computing (DistributedCompuTIng), parallel computing (Parallel CompuTIng), utility computing (Utility Computing), network storage (Network Storage Technologies), virtualization (Virtualization), The product of the development and integration of traditional computer and network technologies such as load balance. The core idea of ​​cloud computing is to uniformly manage and schedule a large number of computing resources connected by the network to form a computing resource pool to serve users on demand. The network that provides resources is called the "cloud". The resources in the "cloud" seem to users to be infinitely expandable, and can be obtained at any time, used on demand, expanded at any time, and paid for per use. This feature is often referred to as using IT infrastructure like hydropower.
For cloud communication service providers, there are 6 cloud models to choose from. Different business models have different deployment complexity. The following are the currently popular 6 types of cloud communication deployment models:
· Complete cloud communication solution. The transportation service provider owns the hardware, software and network, and is responsible for the deployment and management of cloud communication services.
The cloud service provider provides the hardware infrastructure, and the software is on the client. Amazon's EC2 cloud service platform is a typical representative. EC2 is a typical Web service that provides users with unified computing resources. Its SLA (Service
Level Agreement (Service Level Agreement) includes the platform and network parts, but does not include features and functional applications.
The communication software provider provides cloud communication services based on another hardware and network provider. Amazon's EC2 platform also supports this model.
· Third-party licensing model to provide secondary development applications and services on a mature cloud platform. This model is very common.
·Distributor. The distributor itself does not have any cloud resources, and resells the cloud communication service of the first-level cloud service provider or the second-level wholesaler.
· Operation service providers provide users with systems / solutions locally, manage them remotely, and charge fees in the form of agents. Some people don't think this is a cloud service, or a managed service. The business model of cloud services is to provide a wealth of personalized products by breeding a large number of startup companies to meet the growing personalized demand in the market. Its reproduction method is to provide a full set of services for startup companies, such as funding, promotion, payment, logistics, and customer service, and let their own operating capabilities be used externally on demand like water and electricity.
Different business models reflect different ways of using cloud services, and only successful cloud service models can bring the required stability to enterprises. The most deadly thing is, if these cloud service providers "collapse" themselves, where will users go? Enterprises must also be prepared to back up and restore these tasks to prevent cloud service providers from "falling the chain."
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