Zero-cost, no-data engagement rails that reach every subscriber — verification, opt-in, reminders and reverse-charge connectivity that work on any 2G handset, with no app and no data plan.
Across Africa, the vast majority of subscribers are prepaid and data-light. A megabyte costs more than a meal in some markets, so SMS gets ignored and apps never get installed. But a missed call costs nothing — and everyone already knows how to "flash" a number to be called back.
PhotonMatters turns that universal behaviour into a programmable engagement layer. A subscriber dials and hangs up, or accepts a reverse charge, and your platform fires the right action: verify, opt in, remind, or connect. No data, no app, no friction — the entire prepaid base becomes reachable.
Zero-cost subscriber engagement. A subscriber rings a dedicated number and hangs up — the call never connects, nothing is charged, and your gateway fires the action you've configured.
Confirm a number or capture consent with a single missed call instead of a paid OTP SMS.
Print one number on packaging or billboards — every flash becomes a verified, callable lead.
Out-of-credit subscribers flash your line and an agent or IVR rings them back automatically.
Nudge subscribers to repay a loan or recharge — they reply free, you confirm intent instantly.
Measure pull from radio, TV and SMS blasts in real time — each missed call is a tracked response.
Run free yes/no polls and contests with one number per option — no data, no cost to vote.
Reverse-charge connectivity. The subscriber places a call they can't pay for; the receiving party accepts the charge. Conversations happen even when the caller has zero credit.
Customers reach your helpdesk for free; the business absorbs the charge as a service cost.
A subscriber with no balance can still reach a hotline or family contact in an emergency.
Field agents and distributors stay connected to head office even when out of airtime.
The receiving party hears the cost and explicitly accepts before the call connects.
Every reverse-charge minute is billed and settled — a new ARPU line on idle prepaid lines.
Borrowers without credit can still reach your recovery desk to arrange a repayment.
A subscriber flashes a dedicated number or starts a reverse-charge call — free, on any 2G handset.
The operator network signals the call to our gateway, which captures the number and campaign.
OTP, opt-in, reminder, call-back or reverse-charge connect — routed by the rule you configured.
Every event is recorded for analytics, billing and campaign attribution in real time.
Combine missed-call opt-in and collect-call outreach with PhotonMatters campaign and collections intelligence to drive response and recovery — without spending a cent of subscriber data.
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