Communications Platform as a Service (CPaaS) is a cloud-based platform that enables businesses to integrate communication features into their applications. CPaaS provides access to a wide range of communication APIs, such as voice, video, messaging, and chat, which businesses can use to build custom communication solutions for their customers. Here are some benefits of Business Using the Communication Platform as a Service. Bulk SMS Service, WhatsApp Business API, and Cloud Telephony Service are all examples of CPaaS solutions. They are all cloud-based and can be integrated into existing software applications.