Developers

Before you start

Wholesale SMS connections are arranged with our team during onboarding; see SMPP connectivity. Wise Network does not currently operate a public HTTP messaging API. The API and Postman material below is educational: it explains common patterns and uses placeholder addresses that do not respond.

Protocols and connectivity

• SMPP connectivityBind types, throughput, delivery receipts, failover and onboarding steps.
• What is SMPP?The protocol explained: ESME and SMSC, binds, submit_sm and deliver_sm.
• IP access and authorizationPublic IP addresses, NAT, cloud egress and allow-list requests.

APIs, webhooks and testing

• Integration guidanceSMPP and HTTP compared, and how an integration project runs.
• Messaging API conceptsHTTPS, JSON and XML, authentication, submission, scheduling and status.
• Postman guideEnvironments, authentication, requests, tests and an example collection.
• Delivery reports and webhooksMessage states, receipts, webhook security and error codes.

Message content

• SMS encoding and message lengthGSM-7, UCS-2, extension characters and segments.
• SMS length calculatorCheck a message's encoding and segment count in your browser.

Suggested path for a new integration

1. Understand the options. Read the integration guidance.
2. Prepare. Work through the integration checklist and collect your public IP addresses.
3. Request a connection. Send an SMS interconnection request.
4. Test. Check encoding, sender IDs and delivery receipts with agreed test traffic.

For general help, account questions and the FAQ, go to Support.