SMPP integration
SMPP (Short Message Peer-to-Peer) is the industry-standard binary protocol for high-throughput SMS. If your platform already speaks SMPP, talk to our team about connecting it to Sozuri directly instead of calling the HTTP API.
When to use SMPP over HTTP
- Throughput — SMPP keeps a persistent TCP connection open, so you avoid an HTTPS handshake on every send.
- Integration — if you’re plugging in an existing telecom platform, SMPP is likely already supported.
Getting connected
Contact us to request SMPP access for your project. Once it is set up, we send you the connection details:
| Parameter | Value |
|---|---|
| host / port | Provided by Sozuri when access is set up. |
| system_id | Provided by Sozuri — identifies your ESME. |
| password | Provided by Sozuri — authenticates your ESME. |
| system_type | Leave blank unless instructed otherwise. |
Sending a message (submit_sm)
| Parameter | Description |
|---|---|
| source_addr | A sender ID or shortcode registered to your project. There is no shared default sender. |
| destination_addr | Recipient phone number in international format without the + (e.g. 254700000001). |
| short_message | Message body. Encoding and long-message settings are agreed when access is set up. |
Commonly used PDUs
| Command | Purpose |
|---|---|
bind_transceiver | Open a bidirectional session (send + receive). |
submit_sm | Submit a single SMS for delivery. |
deliver_sm | Receive an incoming SMS or a delivery receipt. |
enquire_link | Keep-alive ping to verify the connection is still live. |
unbind | Gracefully close the session. |
Use cases
Where SMPP can earn its keep over the HTTP API.
High-volume OTPs
Platforms that already send one-time codes over SMPP can keep their existing sending stack.
Mass campaigns
Large runs in tight windows, such as product launches or service alerts, over one persistent connection.
Existing telecom integrations
If your platform already speaks SMPP, it can connect to Sozuri with the details we provide, without new HTTP code.
Need SMPP?
Talk to our team about SMPP access for your project.