POST-CALL
AUDIO
ADS.
Your ad reaches the listener the moment their call ends — before they lower the phone.
The gap between
call end
and pocket.
There is a 2–3 second window after every call ends. The user is holding their phone, screen still on. No app is competing for their attention. AdTone fills that window.
Call in progress
Call ends
AdTone activates → ≤500ms
Every call.
Every match.
Tracked.
Our pipeline processes, targets, and delivers — all before the user lowers their phone. Watch a single call event flow through the system.
How it works
Three steps.
Under a second.
Call ends on the network
Telco sends a call-termination webhook to our listener service in real time. We validate, deduplicate, and normalize the event from Safaricom, Airtel, or any partner network.
Ad matched in milliseconds
The targeting engine scores every active campaign against the caller's profile — region, time of day, telco, call duration, and frequency cap — selecting the highest-value match.
Audio plays. Billed on delivery.
A 10–30 second audio message plays through the network or app, reaching the listener before they put their phone down. You pay only when the play completes.
Calls per second
peak throughput
Delivery rate
completed plays
Full pipeline
end-to-end
Telco networks
East Africa
ROI calculator
Run the numbers.
Before you commit.
1,388 plays/day at KES 1.20 per play
Plays / month
41,640
completed audio impressions
Effective CPM
KES 1,200.77
per 1,000 impressions
vs. FM Radio CPM
Up to 4× cheaper,
100% attributed.
Radio avg.
KES 3,200
Features
Built for scale.
Priced for growth.
Sub-500ms delivery
From call end to audio playing before the user can lower their phone.
Precision targeting
Network, region, time slot, call duration, frequency cap.
Live analytics
Per-second impression tracking. Real-time dashboard.
Multi-network
Safaricom, Airtel, and growing. One API, all markets.
Compliant by design
Kenya DPA, CAK telecom regulations. Built-in from day one.
M-Pesa billing
Top up your wallet with M-Pesa. Pay only for completed plays.
Pricing
Only pay for plays.
Scale when ready.
Pay-per-play
Starter
per play
No minimums. No commitment. Pay only for what plays.
- Up to 5,000 plays/day
- Region + network targeting
- Standard analytics
- M-Pesa wallet top-up
- Community support
CPM
Growth
per 1,000 plays
For advertisers scaling reach. Full targeting, real-time data.
- Unlimited daily plays
- Full targeting suite
- Frequency capping
- Real-time analytics (SSE)
- Priority delivery queue
- Dedicated account manager
Subscription
Enterprise
tailored to volume
Agencies and high-volume advertisers with bespoke needs.
- White-label API access
- Multi-brand management
- Custom reporting & exports
- SLA guarantees
- Dedicated infrastructure
- 24 / 7 technical support
All prices in Kenya Shillings (KES) · VAT excluded · No contracts on Starter or Growth
What they say
“AdTone gave us a direct line to our customers the moment they hang up. Our conversion rate from this channel outperforms every other format we run.”
James Mwangi
Marketing Director, RetailCo Kenya
Ready to start
Reach your audience
before they hang up.
Free to start. No setup fees. Pay only per play.