Reach thousands of recipients in minutes on MTN, Airtel and Zamtel — a bulk SMS platform built for businesses, developers and resellers in Zambia.
A text lands on the lock screen and is typically opened within minutes. Email sits unopened; SMS gets seen.
Reaches every customer on any handset — smartphone or not, data or no data.
Direct routes to MTN, Airtel & Zamtel, with real-time delivery reports on every message.
A complete platform for managing bulk SMS campaigns — contacts, templates, credit billing, and real-time analytics.
Send thousands of messages in minutes over direct SMPP routes to every Zambian network. Individual and group messaging.
Organize recipients into groups, import from CSV, and manage contacts with custom fields for targeted campaigns.
Create reusable templates with personalization variables. Organize with template groups for easy access.
Flexible credit system with tiered pricing plans. Allocate credits to resellers and customers with full history.
Real-time delivery tracking with DLR reports. Monitor sent, delivered, and failed messages with analytics.
REST API for programmatic SMS sending. Webhook callbacks for delivery notifications and two-way messaging.
Start sending bulk SMS in minutes with our straightforward onboarding process.
Create your free customer account in a minute — with trial credits included. Set up your sender ID and you're ready. (Reselling? Apply for a partner account.)
Purchase SMS credits through your admin or reseller. Credits are available instantly for sending.
Compose your message, select contacts or groups, and hit send. Track delivery in real-time.
Whether you're a business or a reseller, we have a plan that fits your needs.
For businesses sending their own SMS campaigns.
Bring customers onto the platform and earn commission on their top-ups. Partner accounts are approved individually — apply and we come back within 2 business days.
From banks to churches, organisations across Zambia use Ontech BulkSMS to reach their customers, members, students and policyholders — reliably, at scale.
Also: Healthcare · Retail · Government · All industry guides
Talk to SalesOTP, transactional and two-way SMS over REST API or SMPP — direct routes to MTN, Airtel & Zamtel, with real-time delivery reports on every message.
Verify logins and payments in seconds with time-boxed one-time passwords.
Receipts, balance and payment alerts, appointment and delivery notifications.
Inbound keywords on shortcodes and long numbers, auto-replies and opt-in/opt-out.
Integrate over HTTP or SMPP binds, with delivery receipts (DLR) and high uptime.
Send, schedule, track delivery and manage contacts from a clean web dashboard — nothing to install, works on any computer.
Scroll inside a window, or click any screenshot to expand
Compose & send
Delivery reports
Contacts & groups
Manage messaging on the move with the Ontech Bulk SMS app — download it for Android today and send, schedule, run campaigns and top up credits straight from your phone.
Prefer a direct install over Google Play? Use the APK download above — you may need to allow “Install from unknown sources”.
Everything also works in your browser, no install needed — create a free account.
Short narrated walkthroughs of the platform — from your first personalised bulk send to A/B-tested campaigns. All tutorials ›
One spreadsheet, one template — a personal message for every recipient. Loans, insurance, school results, church & cooperatives.
Top up in under a minute with MTN MoMo, Airtel Money or Zamtel Kwacha — approved from your phone.
Send two versions, measure delivery, and let your customers tell you which message works.
Put your brand name on every message — the request flow, authorization letter, and approval updates.
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Explore TransportBulk SMS is sending one text message to many mobile numbers at once from a platform or an API instead of a handset. Businesses use it for alerts, reminders, one-time passwords and campaigns because SMS reaches every phone without internet.
All three Zambian networks — MTN, Airtel and Zamtel — routed by the recipient's number prefix, with a delivery report for every message.
Creating a customer account is free and includes trial SMS credits. After that you buy credits by MTN MoMo, Airtel Money or Zamtel Kwacha at volume-based rates shown before you pay; there is no monthly fee.
Yes. Branded sender IDs of up to 11 characters are available on approval: request one in your dashboard and upload a signed authorization letter.
Yes. An HTTP/JSON API sends messages, checks delivery status and balance, and manages contacts and templates; an SMPP 3.4 server is available for high-volume binds.
Every message returns a network delivery report — delivered, failed, rejected, queued or submitted — visible in the dashboard, by API, on a callback URL, or over SMPP.
Yes. Apply for a partner account; approved resellers onboard their own customers and earn commission on every credit top-up, tracked in a partner portal.
Join businesses across Zambia using our platform for reliable bulk SMS delivery. Sign up now and get 20 free SMS to try it out.
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