Alert type – voice message

Send a voice message. Specify the sender, recipients, voice format and content.

{
    "version": "latest",
    "apiKey": "abcdefghijklmnopqrstuvwxyz",
    "clientRef": "abcd-efgh",
    "alert": [
        {
            "alertType": "call",
            "sender": "+447777100100",
            "recipients": [
                "+447777100100",
                "+447777100101", 
                "+447777100102"
            ],
            "tag": "t1",
            "voiceFormat": "mp3",
            "contentEncoding": "base64",
            "content": "UklGRgi3AA................=="
        }
    ]
}