Use the Voiso Outbound SMS API to enable external applications to send SMS. For example, you can use it to enable agents to send an SMS from your CRM.

Limitation: The SMS API does not currently allow you to send bulk SMS.

The SMS API enables agents to send SMS to contacts from your web application or CRM using a POST request. Request and response payloads are formatted as JSON, using UTF-8 encoding and URL-encoded values.