Send time-critical messages at scale with a dependable SMPP gateway.
Get persistent connections, strong delivery reporting, and predictable performance for OTP, alerts, and high-throughput campaigns.
Built by SMS.to, a trusted sms gateway provider serving global brands.

SMPP gives you persistent connections and high throughput. That means fewer drops in peak hours and faster OTP delivery. Your customers get codes when they need them Improve conversion delivery.

We work with direct and high quality connections to reduce latency. You see delivery status and can act quickly when something needs attention. View routing options.

Whether you send thousands or millions, our sms message gateway handles bursts and steady flows. We guide you on throughput, windowing, and retries so your ops stay simple. Plan your scaling with us.
We support the industry-standard SMPP protocol for high-volume messaging. If you need specific version features or bind configurations, talk to us and we’ll confirm the best setup for your workload.
Transmitter, receiver, and transceiver binds are available for common setups. We can advise on the best session model for your target throughput.
Designed for 2,000+ MPS on supported setups. Actual rates depend on routing, content, and region. We will work with your team to set safe window sizes and enquire_link intervals.
Final and intermediate DLRs are supported to track message outcomes. We provide clear state mapping so your systems classify delivered, failed, and undeliverable messages correctly.
GSM-7 and Unicode are supported. Concatenation with UDH is available when your text exceeds the single SMS length.
IP whitelisting available. Credentials are created and rotated securely. GDPR aligned processing.
SSL/TLS is enforced over the SMPP connection as noted on our SMPP API page. If you need IP access controls or webhook options, we’ll confirm availability for your account during onboarding.
Message logs, delivery tracking, and status information help your team troubleshoot in minutes. Ask us about webhooks if you prefer push updates. For platform health updates, see our Status page.
Implement SMS notifications, OTP, reminders etc. into your workflow and build apps that send SMS with our reliable SSL SMPP SMS API. We can provide telecom-grade connectivity through the SMPP protocol and you can get access to our OTP and Direct SMPP Products. Leverage our direct connections with MNOs and MVNOs to ensure SMS delivery in seconds.
Your developers can connect in minutes. Here is the flow we usually recommend.
We provide a test account so you can bind safely. We also share helpful defaults for enquire_link and window size.
Most teams use Kannel, Jasmin, or a node-smpp client. We can share sample configs during onboarding.
Submit a short message to a test number and confirm and receive delivery reports through SMPP deliver_sm (standard DLRs over the SMPP session)
Start with conservative windows and increase gradually. We help you pick values that avoid throttling and protect deliverability.
Go from sandbox to first DLR without friction
Need help with Kannel or Jasmin setup? Our team can review your config and suggest safe defaults.

Send OTP codes with a high throughput gateway sms api. Faster codes mean fewer drop offs and more completed sign ups.

Send 2FA and banking alerts on a short message service gateway that logs delivery and supports audits. Keep a clean trail for your compliance team.

Logistics and delivery updates work best when messages arrive on time. SMPP helps you keep customers informed during busy windows.

Utilities, SaaS, and marketplaces can schedule maintenance and incident notices with predictable performance.
You can start with free credits, then move to committed volumes. Throughput tiers range from hundreds to thousands of MPS depending on your needs.
Volume discounts are available.
If you need a wholesale rate card, ask our team and we will share the current options for your regions.
Brands like Heineken, Bolt, and AB InBev trust SMS.to for messaging at scale. We back this with public reviews and a track record across multiple industries. If you want something specific, we can provide a short case that matches your use case.
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when you need persistent connections, very high volumes, and detailed delivery states for operations and reporting.
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when you need a fast start, basic automation, or lower volumes with simple credentials.
This is an sms platform api you can adopt in minutes.
We focus on quality routes, clear delivery feedback, and practical onboarding for your team. You get a dependable sms gateway and support that answers promptly.
Can you help us migrate from our current sms gateway provider?Yes. We can map your current settings to our platform, help with bind changes, and run a short A/B test so you switch with confidence.
Do you support Unicode and long messages?Yes. Unicode is supported and long messages are handled through concatenation. We can show you how this appears in logs and DLRs.
Most teams run a full test in a day. Going to production depends on your internal approvals and region routing. We will guide you through safe throughput increases.
While SMPP is not encrypted by design, SMS.to secures the connection with SSL/TLS to protect data in transit.
If you need a higher security level, we can set up a dedicated VPN tunnel so your SMPP traffic moves over a private, encrypted network path. VPN availability and setup depend on your region and account. Tell us your requirements and we will confirm the best option for your team.
If you need MO and short codes or virtual numbers, tell us your regions and use case. We will confirm availability and setup steps.
Free Credits Included
Note: Throughput, routing specifics, and MO availability can vary by region and use case. We can confirm exact values during onboarding or a quick call.