Messaging APIs
SMS, RCS and OTT channels such as WhatsApp through one interface, for notifications, conversations and campaigns, with consent and sender rules built in.
- SMS and RCS
- WhatsApp Business
- Two-way conversations
- Sender registration
CPaaS events and communityCPaaS Programmable communications
Communications as building blocks.
CPaaS is communications delivered as programmable building blocks: APIs for voice, messaging, video and verification that developers build into apps, workflows and AI agents. It runs through every other discipline, which is why it has no exhibition zone of its own at PACKETLOSS.
Every app now
sends a message.
Somebody built that.
Instead of buying a finished phone system or contact centre, organisations and software makers assemble communications from APIs: send a text, place a call, verify a user, start a video session, all from code. It is how appointment reminders, delivery updates, sign-in codes and in-app calling work.
The field is moving quickly. Messaging is shifting from plain SMS to richer channels, mobile operators are opening their networks through standard APIs, and voice APIs are becoming the way AI agents get onto the phone network.
Then and now
How CPaaS
has changed.
If your picture of CPaaS is a few years old, this is what moved.
| It used to mean | It now means | |
|---|---|---|
| Messaging | Plain SMS from a short code | RCS and WhatsApp with branding, buttons and two-way conversation |
| Verification | A one-time code by text | Silent network checks, number verification and SIM swap detection |
| Voice | Click-to-call and a simple IVR | The connection between AI agents and the phone network |
| Video | A standalone video call | Real-time media embedded in apps, with AI in the stream |
| Who buys it | Developers at technology companies | Enterprises, contact centres and AI builders |
The landscape
What CPaaS covers
at PACKETLOSS.
Programmable voice
Placing, receiving and controlling calls from code: routing, recording, transcription and, increasingly, connecting calls to AI agents.
- Voice APIs
- Media streaming
- AI agent telephony
- Number provisioning
Video and WebRTC
Real-time audio and video built into apps and websites, from telehealth and customer support to live events.
- WebRTC
- Embedded video
- Real-time media processing
- Recording and transcription
Verification and identity
Proving a user is real without making them wait: one-time codes, silent authentication, and checks against the mobile network.
- Two-factor authentication
- Silent network authentication
- Number verification
- SIM swap checks
Network APIs
Mobile operators exposing network capabilities through standard APIs, such as CAMARA and GSMA Open Gateway, so applications can check identity, location or quality with the network directly.
- CAMARA
- GSMA Open Gateway
- Quality on demand
- Device location
Fraud and trust
Stopping the abuse that comes with open access: artificially inflated SMS traffic, spoofing, phishing and impersonation.
- SMS pumping protection
- Number intelligence
- Anti-phishing
- Verified senders
AI-native communications
AI inside communications workflows: summarising conversations, choosing the right channel, and giving AI agents a voice and a phone number.
- AI agents on voice and messaging
- Conversation summaries
- Channel orchestration
- MCP and agent tooling
Integration and workflow
Connecting communications to CRM, contact centre and business systems, so messages and calls trigger and record real work.
- CRM and CCaaS integration
- Event-driven workflows
- Low-code builders
- Webhooks
What is emerging
Where CPaaS
is heading.
The developments the CPaaS programme is built around, and the ones every exhibitor will be asked about.
- 01RCS goes mainstream
Branded, interactive business messages taking over from plain SMS as operator support widens.
- 02Operators open the network
Network APIs for verification and fraud prevention, standardised through CAMARA and GSMA Open Gateway, moving into real deployments.
- 03Voice APIs as the AI on-ramp
Programmable voice becoming the standard way AI agents answer and make phone calls.
- 04Silent authentication
Verification that happens through the network in the background, replacing codes that can be phished.
- 05The fraud arms race
Artificially inflated traffic and AI-assisted phishing pushing providers to build fraud controls into the platform itself.
- 06Proving value in an AI world
CPaaS providers working out where they add value when AI platforms can call APIs themselves.
CPaaS sessions
The questions
on the agenda.
Every PACKETLOSS session is Level 200 to 400. These show the depth, not the final programme, which members help shape.
- Moving from SMS to RCS: what delivery and engagement really look like.
- Connecting a language model to a phone call: media streaming, latency and barge-in.
- Silent network authentication in production: coverage, cost and fallbacks.
- Stopping SMS pumping before it reaches the invoice.
- Building on network APIs when every operator implements them slightly differently.
- Build on CPaaS or buy a packaged platform: where the line really falls.
- Put a session forward →
Who should come
Who this
is for.
For the people who build communications into products, workflows and AI agents.
- Developers and software engineers
- Solution and integration architects
- Product managers
- Digital and messaging teams
- Fraud and security specialists
- Contact centre and AI builders
For exhibitors
CPaaS
across every zone.
CPaaS has no zone of its own at PACKETLOSS because it runs through all of them. Exhibit where your customers are: the Voice zone for programmable voice and numbers, CC & CX for messaging and engagement, Voice AI for agent telephony. Visitors will be developers and architects who want to see the API, not the brochure.
What works: live demonstrations, technical people on the stand, and a straight answer about which platforms you work with. Nothing at PACKETLOSS is Level 100, and that includes the stands.
Who exhibits in CPaaS
- CPaaS platforms
- Messaging and RCS providers
- Programmable voice and numbers
- Video and WebRTC platforms
- Verification and identity APIs
- Network APIs and operator services
- Fraud prevention and number intelligence
The other disciplines
VOICE
Enterprise voice
The phone system moved to the cloud. The job got bigger.
Explore →CC & CX
Contact centre and customer experience
From answering contacts to resolving customers.
Explore →VOICE AI
Voice and conversational AI
Software that listens, speaks, sees and understands.
Explore →UC
Unified communications
Where work happens, and increasingly where AI does too.
Explore →PACKETLOSS 2028 · CPaaS
See it working.
Meet who built it.
Meet who built it.
Two days. Every platform. No beginner content.
Register your interest, put a session forward for the CPaaS programme, or ask about exhibiting.
The next PACKETLOSS is in 2028. The date, venue and exhibitor packages are announced once confirmed.