When using API's to send messages, you can specify a URL callback. If specified, each message sent will receive a response back from the api servers to the specified URL provided, when a delivery response is generated. The definition provided back is in JSON.
Callback string
The URL callback string allows you to receive an update of a sent SMS and provide you with the current status of that message. The information will be provided back in JSON.
Below is a sample response that will be sent to your desired callback URL:
{
"query": {
"id": "12345",
"status": "Delivered",
"timestamp": "2024-03-22 05:44:48"
}
}