SMPP · QUICKSTART
Connect and send your first SMS
Establish an SMPP v3.4 session, submit a message, receive its message ID, and process the delivery receipt.
SMPP protocol reference ↗Before you connect
- Confirm the production host, port, system ID, password, bind mode and security method with VonnexAI technical staff.
- Prepare a fixed public source IP and allow outbound TCP traffic to the assigned endpoint.
- Choose TX/RX sessions or a TRX session according to the approved connection profile.
Connection sequence
TCP connection↓
bind_transceiver↓
bind_transceiver_resp↓
submit_sm↓
submit_sm_resp + message_id↓
deliver_sm receipt↓
deliver_sm_resp
Keep the session healthy
- Send enquire_link at the confirmed interval and acknowledge enquire_link from the peer.
- Correlate every response with its sequence number.
- Use bounded exponential backoff after disconnects; do not create a reconnect loop.
- Log PDU direction, command, sequence number and message ID without recording credentials or full message content.
Demonstration environment
Important
openAPIdemo.vonnex.cc is a demonstration address only. Confirm the official production address, port, credentials, TLS or VPN method, throughput and timeout values with VonnexAI technical staff.
Production checklist
- Bind and heartbeat tested
- GSM and UCS-2 content tested
- Long-message behavior confirmed
- Delivery receipts acknowledged
- Reconnect and duplicate handling tested
- Source address and target markets approved