WebRTC CPaaS ( Communication Platform as a Service )

A CPasS ( communication platform as a service ) is cloud based communication platform that provides real time communication capabilities. This should be easily integrable with any given external environment or application of the customer, without him worrying about building backend infrastructure or interfaces .

Traditionally , with IP protected protocols , licensed codecs maintaining a signalling protocol stack , network interfaces building communication platform was a costly affair. Cisco , Facetime , Skype were the only OTT ( over the top) players taking away from telco’s call revenue .

However with the advent of standardize , open source protocol and codecs plenty of CPaaS providers have crowded the market making more supply than there is demand. A customer wanting to quickly integrate real time communications on his platform has many options to choose from. This article provides an insight to how CPaaS solution are architectured and programmed

Sample CPass Architecture build on open source technologies

I have written an article before on Steps for building and deploying WebRTC solution , which includes standalone , cloud hosted and TURN based NAT handler systems .

A typical CPaaS solution provides

  • Call server + Media Server that can be interacted with via UA
  • Comm clients like sipphones , webrtc client , SDK ( software development kits ) or libraries for desktop , embedded and/or mobile platforms .
  • APIs that can trigger automated calls and perform preprogrammed routing.
  • Rich documentation and samples to build various apps such as call centre solutions , interactive auto-attendant using IVR , DTMF , conference solutions etc .
  • Some CPaaS providers also add features like transcribing ,transcoding , recording , playback etc to provide edge over other CPaaS providers

Advantages of using a CPaaS vs building your own RTC platform

Tech insights and experiences

companies who have been catering to telco and communication domain make robust solutions based on industry best practices which beats novice solution build in a fortnight anyday

keeping up with emerging trends

Market trends like new codecs , rich communication services , multi tenancy, contextual communication , NLP , other ML based enhancements are provided by CPaaS company

Auto Scaling , High Availability

A firm specializing in CPaaS solution has already thought of clustering and autoscaling to meet peak traffic requirements and backup/replication on standby servers to activate incase of failure

CAPEX and OPEX

using a Cpaas saves on human resources, infrastructure, and time to market. It saves tremendously on underlying IT infrastructure and many a times provides flexible pricing models

In a nutshell I have come across so many small size startups trying to build CPaaS solution from scratch but only realising it after weeks of trying to build a MVP that they are stuck with firewall, NAT, media quality or interoperability issues . Since there are so many solution already out in the market it is best to instead use them as underlying layer and build applications services using it such as callcentre or CRM services etc .

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