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CPaaS Icon/// TELECOM · CPAAS

CPaaS Platform Development

The platform behind communications APIs — messaging, voice and verification, carrier routing, usage billing and a developer portal — for operators, aggregators and messaging providers building their own CPaaS.

WhatsAppMessage on WhatsApp

Looking for a provider to send messages or make calls from your app? We build on those too — see VoIP & WebRTC App Development.

CPaaS Platform Architecture
Messaging APIsCarrier routing10DLC and DLT
Usage billingDeveloper portal

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/// INTRODUCTION

A communications platform as a service lets developers add messaging, voice and verification to their apps through APIs.

Behind those APIs sits the hard part: connections to operators and channels, routing that balances cost against delivery, compliance rules that differ in every country, delivery tracking, and billing that has to be accurate to the message. Sodio builds CPaaS platforms for operators opening up their networks, aggregators with their own carrier connections, and regional providers serving markets the global platforms do not.

Hands typing messaging on smartphone

/// USE A CPAAS, OR BUILD ONE?

Use a CPaaS, or Build One?

If you need to send messages or make calls from your own product, use one of the established CPaaS providers — Twilio, Vonage, Sinch, Infobip and others. Building your own makes sense only if communications are the business you are in.

Use an existing CPaaS when

  • You need to add SMS, voice, or OTP to an existing software application
  • Standard global routes and standard pricing work for your volume
  • Compliance registration can be handled through a third-party console
  • Communications are a feature of your product, not the product itself

Build your own when

  • You are a mobile operator opening up your network directly to developers
  • You are an aggregator with direct carrier interconnections and wholesale rates
  • You need full ownership of margins, routing logic, and rating engines
  • You serve regional markets or compliance regimes that global providers handle poorly

/// WHAT THE PLATFORM COVERS

What a CPaaS Platform Covers

CPaaS solutions look like a few simple APIs from the outside. These are the parts underneath.

Messaging APIs

Messaging APIs

Voice and verification APIs

Voice and verification APIs

Carrier connectivity

Carrier connectivity

Routing engine

Routing engine

Delivery tracking

Delivery tracking

Numbers and sender IDs

Numbers and sender IDs

Compliance by market

Compliance by market

Usage billing and rating

Usage billing and rating

Developer portal

Developer portal

Fraud protection

Fraud protection

/// THE LIFE OF A MESSAGE

From API Call to Delivered Message

STAGE 1 - REQUEST

A customer's app calls the API

Authenticated and checked against the account's limits

STAGE 2 - VALIDATE

The message is checked

Registration, consent and content rules for the destination applied

STAGE 3 - ROUTE

A route is chosen

Best carrier selected for cost and delivery, with a fallback

STAGE 4 - DELIVER

The message goes out

Sent over SMPP or the channel's own interface

STAGE 5 - CONFIRM

The carrier reports back

Delivery receipt recorded and passed to the customer

STAGE 6 - BILL

The message is charged

Rated by destination and deducted from the account in real time

/// COMPLIANCE BY MARKET

A2P Messaging Rules That Differ by Market

Business messaging is regulated differently in almost every country, and carriers filter or block traffic that does not follow the rules.

United States
What the rules requireBrand and campaign registration for 10DLC through The Campaign Registry, toll-free number verification, and consent and opt-out under the TCPA
What the platform doesRegistration built into customer onboarding; STOP handled automatically
United Kingdom
What the rules requireConsent under PECR, and protection of registered sender IDs
What the platform doesConsent recorded; protected sender IDs checked before sending
India
What the rules requireRegistration of senders, message templates and consent on the DLT platform
What the platform doesTemplates and sender registration checked on every message
European Union
What the rules requireConsent and data protection under GDPR
What the platform doesConsent and data handling built into every account
Everywhere
What the rules requireCarrier content filtering and sender rules
What the platform doesMessages checked before sending to avoid being blocked

Connects to operators and aggregators over SMPP and SIP, and to the WhatsApp Business Platform and RCS business messaging.

Gradient

///AI IN MESSAGING

Where AI Helps a Messaging Platform

Delivery success predicted by route, destination and time, so traffic moves before a route starts failing.

SMS pumping, phishing and spam detected in the traffic, protecting customers and the platform's standing with carriers.

AI assistants on WhatsApp and RCS that customers can offer to their own users, with a handover to a person.

A CPaaS handles millions of messages across hundreds of routes. AI helps where the patterns are too many for rules alone.

/// COMPARE

White-Label CPaaS, Assembled Components or Your Own Platform

Time to launch
White-label CPaaSFastest
Assembled from componentsModerate
Custom CPaaS30 days to a working version, 90 to production
Margin
White-label CPaaSShared with the provider
Assembled from componentsBetter
Custom CPaaSYours
Control over routes
White-label CPaaSThe provider's
Assembled from componentsPartial
Custom CPaaSComplete
Channels and markets
White-label CPaaSWhat the provider supports
Assembled from componentsWhat the components support
Custom CPaaSWhatever you need
Compliance
White-label CPaaSHandled by the provider
Assembled from componentsSplit
Custom CPaaSBuilt for your markets
Best for
White-label CPaaSReselling quickly
Assembled from componentsGrowing providers
Custom CPaaSOperators, aggregators and regional leaders

/// COST AND TIMELINE

What Drives the Cost and Timeline

A working messaging API on your own carrier connections typically arrives within 30 days, with a production platform in 90.

30 daysWorking messaging API on your own carrier connections
90 daysProduction platform

The cost moves with six things: how many channels are offered; how many carrier connections and countries are covered; the throughput required in messages per second; the compliance rules of each market; the billing model, including reseller hierarchies; and the depth of the developer portal and SDKs.

/// FAQ

Frequently Asked Questions

CPaaS — communications platform as a service — is a cloud platform that lets developers add messaging, voice, video and verification to their own apps through APIs, without building telecom infrastructure themselves. Behind the APIs sit connections to mobile operators and messaging channels, routing, delivery tracking, compliance and usage billing.

Mostly four kinds of business: mobile operators putting their network capabilities behind APIs, messaging aggregators with their own carrier connections, regional providers serving markets or channels the global platforms serve poorly, and businesses offering white-label messaging to resellers. For almost everyone else, using an existing CPaaS is the right choice.

10DLC is the US system for business text messages sent from ordinary ten-digit phone numbers. Businesses must register their brand and each messaging campaign through The Campaign Registry, and unregistered traffic is filtered or blocked by carriers. A CPaaS serving US customers has to build that registration into onboarding.

Yes. Access to WhatsApp for businesses runs through Meta's Business Solution Provider programme, either by becoming a provider or by connecting through an existing one. RCS business messaging runs through Google and participating carriers. Both can sit behind the same API as SMS, with fallback to SMS when a channel is unavailable.

By watching traffic patterns as they happen. SMS pumping — bots triggering verification messages to premium numbers — shows up as sudden spikes to unusual number ranges from a single application. The platform detects it, limits the affected traffic automatically and alerts the customer before the cost builds up.

Usually by usage: a rate per message or minute that varies by destination and channel, often drawn from a prepaid balance. Rating has to happen in real time, so an account cannot run up costs beyond its balance, and resellers need their own margins on top of your prices.

/// RELATED SERVICES

Related Industries and Services

Routes where scope overlaps with CPaaS platforms.

/// GET STARTED

Start With Your Routes and Your Markets

Tell us which carriers you connect to, which countries you serve and which channels your customers ask for. We will prepare a free solution architecture for a platform that routes, complies and bills correctly in every one of them.

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