Ride notifications via SMS, OTP verification for secure login, phone number masking between drivers and riders, WhatsApp Business messaging, and call forwarding through Twilio Programmable Communication APIs.
Communication between riders, drivers, and your platform is the connective tissue of every ride-hailing operation. Twilio provides the programmable communication infrastructure that powers SMS notifications, phone-based authentication, privacy-preserving number masking, and WhatsApp messaging across your entire platform.
Our Twilio integration uses four core Twilio products: Programmable SMS for ride notifications and marketing, Verify API for OTP-based phone authentication, Proxy for driver-rider number masking, and the WhatsApp Business API for markets where WhatsApp is the dominant messaging channel.
Every SMS and voice call is logged in the admin dashboard with delivery status, cost tracking, and per-message analytics. The system intelligently routes messages through the lowest-cost path: SMS for simple notifications, WhatsApp for rich-media messages in supported markets, and push notifications as the free fallback when the rider app is active.
The integration uses an event-driven architecture where ride lifecycle events trigger communication workflows. Each workflow selects the optimal channel (push, SMS, WhatsApp) based on the rider's preferences, app state, and message priority.
// Send ride confirmation SMS with driver details
const sendRideConfirmation = async (ride) => {
const message = await twilio.messages.create({
body: `Your ${ride.vehicleType} is on the way! ` +
`Driver: ${ride.driverName} | ${ride.vehicleModel} ` +
`| ${ride.licensePlate} | ETA: ${ride.eta} min`,
from: process.env.TWILIO_PHONE_NUMBER,
to: ride.riderPhone,
statusCallback: `${BASE_URL}/webhooks/twilio/status`
});
return message.sid;
};
// OTP verification for rider login
const sendOTP = async (phoneNumber) => {
return twilio.verify.v2
.services(process.env.TWILIO_VERIFY_SID)
.verifications.create({
to: phoneNumber,
channel: 'sms' // or 'whatsapp' or 'call'
});
};
// Create a masked session for driver-rider communication
const createMaskedSession = async (ride) => {
const session = await twilio.proxy.v1
.services(PROXY_SERVICE_SID)
.sessions.create({
uniqueName: `ride_${ride.id}`,
ttl: 3600 // Session expires 1 hour after ride ends
});
// Add rider and driver as participants
await session.participants.create({ identifier: ride.riderPhone });
await session.participants.create({ identifier: ride.driverPhone });
// Both parties now call/text a masked Twilio number
};
Automated SMS at every ride stage: booking confirmation, driver assigned with name/plate, driver arriving, ride started, ride completed with fare, and receipt link. Riders without smartphones still receive full ride updates.
Twilio Verify sends a 6-digit OTP via SMS or WhatsApp during rider and driver registration. Supports automatic OTP reading on Android, reducing verification to one tap. Prevents fake account creation and account takeover.
Twilio Proxy assigns temporary phone numbers so riders and drivers can call and text each other without sharing personal numbers. The masked session auto-expires after the ride ends, protecting both parties' privacy.
In markets like India, Brazil, and Indonesia where WhatsApp dominates, ride notifications are sent as WhatsApp messages with rich content: driver photo, vehicle image, live tracking link, and interactive buttons.
For taxi apps with delivery features, Twilio sends package pickup confirmation, estimated delivery time, driver-is-arriving alerts, and delivery confirmation SMS to both sender and recipient.
The system checks if the rider app is active before sending SMS. If push notifications are deliverable, SMS is skipped, saving $0.0079 per message. SMS is the fallback for offline or non-app users.
Sign up at twilio.com and purchase phone numbers for each country you operate in. For US operations, register for A2P 10DLC to ensure SMS delivery compliance. Each number costs $1/month plus per-message charges.
Enter your Account SID, Auth Token, Verify Service SID, and Proxy Service SID in the admin dashboard. Set the sender phone number for each country and configure SMS templates for each ride event.
If targeting WhatsApp-heavy markets, apply for WhatsApp Business API access through Twilio. Submit message templates for approval (24-48 hour review). Once approved, WhatsApp becomes an available notification channel.
Provision a pool of Twilio phone numbers for Proxy sessions. The pool size should be 10-15% of your concurrent ride volume. Numbers are recycled across sessions automatically.
Send test SMS and OTPs using Twilio's test credentials. Monitor delivery rates, latency, and costs in the admin dashboard. Set up alerts for delivery rate drops below 95% to catch carrier issues early.
SMS costs add up at scale. The platform includes multiple strategies to minimize Twilio spend while maintaining communication quality.
The system sends push notifications first (free) and only falls back to SMS ($0.0079/msg US) when the app is not active. For a fleet with 80% app-active riders, this reduces SMS volume by 80%.
80% cost reductionNon-urgent messages (promotional offers, weekly summaries) are batched and sent during off-peak hours when Twilio throughput is higher and carrier congestion is lower, improving delivery rates.
Higher delivery ratesSMS templates are kept under 160 characters (1 segment) to avoid multi-segment charges. Links use short URLs. WhatsApp templates include rich media that would require multiple SMS segments.
1 segment per SMSProxy numbers are shared across non-overlapping ride sessions. A pool of 50 numbers can support 500+ concurrent rides because sessions expire within minutes of ride completion.
10:1 session ratioThe system uses local numbers for each country to avoid international SMS surcharges. Indian riders receive SMS from Indian numbers ($0.005), not US numbers ($0.065 international rate).
Local ratesReal-time dashboard shows SMS spend per country, per message type, delivery rates, and cost-per-ride. Identify which message types drive the most cost and optimize or eliminate low-value notifications.
Per-ride cost trackingNumber masking means riders and drivers never see each other's real phone numbers. After the ride ends, communication is automatically terminated, preventing unwanted contact.
Not every rider has a smartphone or stable data connection. SMS reaches 100% of mobile phone users globally, ensuring ride updates are delivered even to basic feature phone users.
Timely SMS notifications ("Driver arriving in 2 minutes") reduce rider no-shows by up to 25%. Drivers waste less time waiting, improving fleet utilization and driver satisfaction.
Twilio handles A2P 10DLC registration (US), GDPR consent management (EU), and DND registry checks (India). Your SMS notifications comply with local regulations in every market automatically.
OTP verification ensures every rider account is linked to a real phone number. This prevents bot-created accounts, promo code abuse, and referral fraud that plague ride-hailing platforms.
WhatsApp messages have 98% open rates compared to 20% for SMS. In WhatsApp-dominant markets, ride notifications via WhatsApp feel native and drive higher rider engagement and re-booking.
A typical ride triggers 3-4 SMS messages (confirmation, driver assigned, arriving, receipt). At US rates of $0.0079/message, that is approximately $0.03 per ride. With push-first routing, 80% of these go as free push notifications, reducing the average to $0.006 per ride. International rates vary: India is $0.005/SMS, UK is $0.04/SMS.
No. WhatsApp is optional and recommended only for markets where WhatsApp is the dominant messaging platform (India, Brazil, Indonesia, Nigeria). SMS works globally and is the default channel. WhatsApp can be added later without any changes to the notification workflow.
When a ride is confirmed, Twilio Proxy creates a session and assigns a masked number from your pool. The rider sees this masked number as the driver's contact, and vice versa. Calls and texts to the masked number are forwarded to the real participant's phone. The session expires automatically after ride completion plus a configurable buffer (default 15 minutes).
Yes. All SMS templates are configurable in the admin dashboard with variables for rider name, driver name, vehicle details, ETA, fare amount, and tracking links. Templates support multiple languages and are selected based on the rider's language preference. WhatsApp templates require Meta approval before use.
Twilio Verify delivers OTPs with 99.5%+ success rate across 180+ countries. If SMS delivery fails after 10 seconds, the system automatically falls back to a voice call that reads the OTP aloud. For WhatsApp-enabled markets, OTP delivery via WhatsApp has near-100% success rate since it bypasses carrier SMS filtering.
SMS ride alerts, OTP verification, number masking, WhatsApp messaging. Keep riders and drivers connected while protecting their privacy.