s CheapSMS.com - Bulk SMS, WhatsApp & VoIP Services Since 2002
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๐Ÿ“ฑ Bulk SMS โ–พ
๐Ÿ’ฌ Bulk WhatsApp โ–พ
๐Ÿค– AI Automation โ–พ
๐ŸŒ RCS Message
๐Ÿ› ๏ธ Services โ–พ
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โ†”๏ธ India's Most Powerful Two-Way SMS Platform

Turn SMS Into a
Real Conversation
with Your Customers

Go beyond one-way blasts. With CheapSMS Two-Way SMS, your customers can reply, respond, and interact โ€” keyword automation, virtual numbers, live inbox management, and webhook integration all in one powerful platform.

98%
Reply Read Rate
45%
Avg. Response Rate
<2s
Keyword Trigger
100+
Keywords Supported
โ†” CheapSMS Live Inbox
LIVE
R
+91 98765 43210
DEALS
2:31 PM
B
BRAND ยท Auto Reply
Hi Rahul! ๐ŸŽ‰ Here are today's top deals: 50% OFF Electronics. Reply STOP to opt out.
2:31 PM ยท Delivered โœ“โœ“
P
+91 87654 32109
ORDER STATUS
2:33 PM
B
BRAND ยท Auto Reply
Your order #ORD8820 is Out for Delivery! Expected by 5 PM today. ๐Ÿ“ฆ
2:33 PM ยท Delivered โœ“โœ“
S
+91 76543 21098
STOP
2:35 PM
B
BRAND ยท Auto Opt-Out
You've been unsubscribed. Reply START anytime to re-subscribe. โœ…
2:35 PM ยท Delivered โœ“โœ“
Type a message or keyword...
โžค
โ†”๏ธ True Two-Way SMS
๐Ÿค– Keyword Automation
๐Ÿ“ž Virtual Long Numbers
๐Ÿ”— Webhook Integration
๐Ÿ“ฅ Unified Inbox
๐Ÿ›ก๏ธ Auto Opt-Out Compliance
What Is It

What is Two-Way SMS?

Two-Way SMS allows your customers to reply to your messages โ€” and your system to respond back automatically or route replies to your team. It transforms SMS from a broadcast channel into a real-time, interactive communication tool. Use it for customer support, surveys, order confirmations, feedback collection, appointment booking, and more โ€” all over plain SMS, with no app required.

  • โœ“
    Customers reply to your SMS using normal text messages
  • โœ“
    Keyword triggers auto-respond in under 2 seconds
  • โœ“
    Virtual long numbers (VLN) dedicated to your brand
  • โœ“
    All replies land in your unified inbox or webhook endpoint
  • โœ“
    Route replies to your CRM, helpdesk, or custom app
  • โœ“
    Automatic STOP/UNSUBSCRIBE handling for compliance
  • โœ“
    Works on every phone โ€” no app, no internet needed
โ†”๏ธ Start Conversing โ†’
Two Way SMS Customer Conversation
98%
Reply Read Rate
45%
Avg. Response Rate
<2s
Keyword Auto-Reply
3x
Higher Engagement vs Email
Features

Everything You Need for Real SMS Conversations

A complete two-way SMS toolkit โ€” keyword automation, virtual numbers, live inbox, CRM webhooks, and smart routing built into one platform.

๐Ÿค–
Keyword Automation Engine
Define unlimited keywords and auto-reply templates. When a customer replies "DEALS", "HELP", "STATUS", or any custom word โ€” your pre-configured response fires in under 2 seconds. Supports partial matching, wildcard keywords, and multi-level keyword trees for complex conversation flows.
๐Ÿ“ž
Virtual Long Numbers (VLN)
Dedicated 10-digit virtual numbers assigned exclusively to your brand. Customers reply to your number and their response is routed only to you โ€” no shared numbers, no cross-contamination. Pool of numbers available for high-volume campaigns needing multiple dedicated lines.
๐Ÿ“ฅ
Unified Reply Inbox
All customer replies across every campaign and number land in one clean dashboard inbox. Sort by sender, keyword, date, or campaign. Assign replies to team members, add internal notes, and mark conversations resolved โ€” a full helpdesk experience over SMS.
๐Ÿ”—
Real-Time Webhooks & API
Every inbound reply fires an HTTP POST to your webhook URL in real time โ€” include the sender number, message text, timestamp, and matched keyword. Push replies directly into your CRM, helpdesk, chatbot, or custom workflow without polling the API.
๐Ÿ”„
CRM & Helpdesk Integration
Native integrations with Salesforce, HubSpot, Zoho CRM, Freshdesk, Zendesk, and 50+ more via Zapier. When a customer replies, automatically create a support ticket, update a contact record, or trigger an automation workflow โ€” zero manual effort.
๐Ÿ›ก๏ธ
Automatic Opt-Out Compliance
STOP, UNSUBSCRIBE, QUIT, END โ€” any opt-out keyword is automatically detected, the contact is immediately added to your DND list, and a compliant confirmation message is sent. Fully TRAI-compliant. Manual team intervention never needed for opt-outs.
๐Ÿ“Š
Conversation Analytics
Track reply rates, keyword hit rates, response times, and conversation completion rates per campaign. See which keywords drive the most engagement, peak reply times by hour, and conversion attribution for two-way campaigns vs one-way blasts.
๐Ÿง 
Smart Reply Routing
Route different replies to different teams or systems based on keyword. "SUPPORT" โ†’ helpdesk team. "ORDER" โ†’ fulfilment system. "SALES" โ†’ CRM. Time-based routing sends after-hours replies to a different queue than business-hours replies.
๐Ÿ“‹
SMS Survey & Polling
Run multi-step SMS surveys with sequential keyword prompts. Ask a question, customer replies "1", "2", or "3" โ€” system captures the answer and fires the next question automatically. NPS scores, product feedback, and satisfaction surveys over plain SMS.
Keyword Engine

Set Up Keywords, Automate Replies

Configure any keyword and the automated response you want to send back. When a customer texts that word to your virtual number โ€” the reply fires instantly, 24/7, without any human involvement.

โšก Live Keyword Examples
DEALS
โ†’ Send today's offers + discount code
๐Ÿ’ฌ Auto reply in <2s
ORDER
โ†’ Fetch order status from CRM, reply with details
๐Ÿ”— Webhook triggered
HELP
โ†’ Send support menu + agent contact info
๐Ÿ“ฅ Ticket created in Freshdesk
VOTE 1
โ†’ Record vote, send confirmation + result so far
๐Ÿ“Š Poll response logged
BOOK
โ†’ Trigger appointment booking flow over SMS
๐Ÿ“… Calendar integration
STOP
โ†’ Auto opt-out + TRAI compliant confirmation
๐Ÿ›ก๏ธ DND list updated instantly
API Integration

Receive Replies via Webhook

Every inbound SMS fires a real-time POST to your endpoint. Parse the keyword, sender number, and message body to trigger any action in your system.

// Inbound SMS Webhook Payload // Fires on every customer reply in real time POST https://yourapp.com/sms-webhook { "event": "inbound_sms", "from": "919876543210", "to": "918045001234", "message": "ORDER STATUS", "keyword": "ORDER", "campaign_id":"CAMP_JUL_2024", "timestamp": "2024-07-14T14:33:09Z", "msgid": "CSMS_IN_00291" } // Your app receives this, looks up the order // and fires a reply via our outbound API
How It Works

A Two-Way SMS Conversation in 4 Steps

From your outbound campaign to the customer's reply to your automated response โ€” the entire loop completed in seconds.

1
Send Your SMS
Send a campaign or individual SMS from your virtual number. Include a call-to-action like "Reply DEALS for today's offers" or "Reply YES to confirm your appointment."
2
Customer Replies
Your customer replies with a keyword or free text from their normal SMS app โ€” no app download, no internet required. The reply arrives at your virtual number instantly.
3
Keyword Matched
Our engine matches the reply against your keyword list in milliseconds. The matched keyword triggers the configured auto-reply AND fires your webhook with full reply details.
4
Response Delivered
Your automated reply reaches the customer in under 2 seconds. Simultaneously, the reply appears in your inbox and your CRM/helpdesk is updated โ€” all without any manual work.
SMS Two Way Conversation Customer Two Way SMS Dashboard Team
Use Cases

Every Way to Use Two-Way SMS

From customer support to appointment booking โ€” any interaction where you need a reply, Two-Way SMS handles it better than email, app, or call.

๐Ÿ’ฌ
Customer Support
Let customers text "HELP" for support. Route to the right team, create tickets automatically, and resolve faster than call centres โ€” at a fraction of the cost.
๐Ÿ“…
Appointment Booking
Send appointment reminders with "Reply YES to confirm or NO to reschedule." Auto-update your calendar system based on the reply โ€” zero manual admin.
๐Ÿ“Š
Surveys & Feedback
Run NPS surveys, post-purchase feedback, and satisfaction polls via SMS. "Rate us 1-5" with keyword capture gives you structured data from customers on any phone.
๐Ÿฅ
Healthcare Reminders
Send "Reply YES to confirm your appointment or NO to cancel." Reduce no-shows by 50% and automatically free up slots when patients cancel via SMS reply.
๐Ÿ—ณ๏ธ
Voting & Polls
TV show voting, employee engagement polls, product preference surveys. "Vote A, B, or C" with real-time tally tracking and automatic result SMS to all voters.
๐Ÿ›’
Order Management
Customers reply "ORDER" to get live status. "CANCEL" triggers cancellation flow. "RETURN" starts a return request โ€” all integrated with your order management system.
๐ŸŽ“
Educational Quizzes
Send questions and collect SMS answers for daily quizzes, enrollment confirmations, and course progress check-ins โ€” no app or internet needed from students.
๐Ÿ“ข
Lead Qualification
Send "Reply BUDGET to share your budget range" or "Reply CALL to request a callback." Qualify leads over SMS and route hot prospects to sales instantly.
Industries

Transforming Customer Communication Across Every Sector

Two-Way SMS works wherever customers need to respond โ€” every industry benefits from making SMS a dialogue instead of a monologue.

๐Ÿฅ
Healthcare
Appointment confirmations, prescription refill requests
๐Ÿ›’
E-Commerce
Order tracking, return requests, delivery confirmations
๐Ÿฆ
Banking & Finance
Transaction confirmations, loan application status
๐ŸŽ“
Education
Enrollment confirmation, parent-teacher communication
๐Ÿ 
Real Estate
Site visit booking, enquiry qualification, follow-ups
๐Ÿ”
Food & Delivery
Order confirmations, delivery ETA, feedback collection
โœˆ๏ธ
Travel & Hospitality
Booking confirmations, check-in alerts, guest feedback
๐Ÿญ
Field Services
Job confirmations, technician ETA, work order updates
Why Us

CheapSMS vs Other Two-Way SMS Platforms

Why 1 Lakh+ businesses choose CheapSMS for their two-way conversational SMS over Twilio, Exotel, Kaleyra, and others.

Feature โœฆ CheapSMS Twilio Exotel / Kaleyra
Keyword Automation โœ” Unlimited keywords Via Messaging Services (complex) Limited keyword support
Virtual Long Numbers (India) โœ” Instant provisioning Not available in India โœ” Available
Unified Reply Inbox โœ” Full team inbox โœ˜ Build your own Basic inbox only
Real-Time Webhooks โœ” Sub-2 second โœ” Yes โœ” Yes
CRM Integrations 50+ native integrations Via Zapier / custom 10โ€“15 integrations
Auto Opt-Out Compliance โœ” Fully automated Manual setup required Semi-automated
Price Per Inbound SMS โ‚น0.05/inbound โ‚น0.45โ€“0.70/inbound โ‚น0.10โ€“0.20/inbound
Setup Time Live in 2 hours Days of development 24โ€“48 hours
Pricing

Simple Two-Way SMS Pricing

Pay for outbound SMS sent + a small per-reply fee for inbound. No monthly fees on Starter. Includes virtual number rental.

Starter
โ‚น0.18
per outbound SMS ยท โ‚น0.05/inbound reply
  • 1 Virtual Long Number
  • Up to 20 keywords
  • Auto-reply templates
  • Unified inbox
  • Webhook support
  • Auto opt-out management
  • Email & chat support
Start Free โ†’
Enterprise
Custom
Volume-based ยท dedicated infrastructure
  • Unlimited Virtual Numbers
  • Dedicated short code option
  • Custom conversation flow builder
  • On-premise deployment
  • Custom CRM integration
  • SLA guarantee with penalty
  • Dedicated engineering support
  • Custom DLT & compliance docs
Contact Sales โ†’

* Virtual Long Number rental: โ‚น500/month per number. All prices exclude GST. Contact us for custom volume pricing.

Testimonials

Real Businesses, Real Conversations

Feedback from companies that turned one-way SMS broadcasts into two-way customer conversations with CheapSMS.

โ˜…โ˜…โ˜…โ˜…โ˜…

"We replaced our call centre for appointment confirmations with Two-Way SMS. Patients reply YES or NO, the system updates our calendar automatically. No-show rate dropped from 28% to 9%. Saves us 40 hours of staff time a week."

D
Dr. Divya Menon
Director, Apollo HealthHub ยท Hyderabad
โ˜…โ˜…โ˜…โ˜…โ˜…

"Our customers love being able to text 'ORDER' and instantly get their delivery status. The keyword automation handles 3,000+ daily enquiries without any human agent. Our support ticket volume dropped 60% in the first month."

A
Ankit Verma
Head of CX, QuickCart India ยท Delhi
โ˜…โ˜…โ˜…โ˜…โ˜…

"We run post-training NPS surveys entirely via Two-Way SMS. 68% response rate โ€” compared to 12% for our email surveys. The webhook integration pushes results directly into our Salesforce dashboard. Setup took 3 hours with CheapSMS's support."

P
Priya Nambiar
VP Marketing, UpSkill Pro ยท Bengaluru
FAQ

Common Questions About Two-Way SMS

โ†”๏ธ
How is Two-Way SMS different from regular bulk SMS?
โ–ผ
Regular bulk SMS is one-way โ€” you send, the customer reads, conversation ends. Two-Way SMS allows the customer to reply back using their normal SMS app, and your system receives and processes that reply automatically.

This enables actual dialogues โ€” support conversations, appointment confirmations, survey responses, keyword-triggered auto-replies โ€” all over plain SMS without any app or internet connection required from the customer.
๐Ÿ“ž
What is a Virtual Long Number and do I need one?
โ–ผ
A Virtual Long Number (VLN) is a dedicated 10-digit mobile number assigned exclusively to your brand. When you send SMS from your VLN, customers can reply directly to that number and their reply is routed only to your inbox.

Yes, you need a VLN for true two-way SMS โ€” without it, customers have no return address to reply to. VLNs are provisioned within 2โ€“4 hours on our platform and cost โ‚น500/month per number.
๐Ÿค–
How many keywords can I set up and how fast do auto-replies fire?
โ–ผ
On Business and Enterprise plans, you can configure unlimited keywords. Keywords support exact match, partial match, and wildcard patterns (e.g. ORDER* matches ORDER STATUS, ORDER HELP, ORDER CANCEL).

Auto-replies fire in under 2 seconds of the inbound SMS being received. The webhook to your endpoint also fires simultaneously so your CRM or app can take action at the same time as the auto-reply is sent.
๐Ÿ”—
Can I connect Two-Way SMS to my CRM or helpdesk?
โ–ผ
Yes โ€” we offer 50+ native integrations including Salesforce, HubSpot, Zoho CRM, Freshdesk, Zendesk, Intercom, and Pipedrive. For non-native tools, our real-time webhook fires a POST to any URL with the full reply payload.

Zapier integration is available for 1,000+ additional tools with no code required. Most CRM integrations are configured from our dashboard in under 30 minutes.
๐Ÿ›ก๏ธ
How does automatic opt-out compliance work?
โ–ผ
When a customer replies with any opt-out keyword โ€” STOP, UNSUBSCRIBE, QUIT, END, CANCEL โ€” our system:
  • Immediately adds them to your DND/suppression list
  • Fires the TRAI-compliant confirmation SMS automatically
  • Blocks all future outbound messages to that number
  • Logs the opt-out with timestamp for compliance records
This happens fully automatically without any manual action from your team, 24/7 โ€” ensuring TRAI compliance at all times.

Start Real SMS Conversations
with Your Customers Today

Join 1 Lakh+ businesses using CheapSMS Two-Way SMS to turn broadcasts into dialogues. Free trial credits, live in 2 hours, no credit card needed.

โœ… Free trial credits  ยท  โœ… Keyword automation  ยท  โœ… Virtual numbers  ยท  โœ… CRM integrations  ยท  โœ… Live in 2 hours

๐Ÿ“ž 24/7 Support: +91 9000936571
๐Ÿ“ง info@cheapsms.com | ๐Ÿ’ฌ Live Chat Available
โšก Get Instant Demo