Voice alert using Text-to-speech (TTS)

Send a voice alert using TTS with retries. Specify alert type, sender, recipient list, voice format (TTS), content to use and simple use of IVR.

{
    "version": "latest",
    "apiKey": "abcdefghijklmnopqrstuvwxyz",
    "clientRef": "abcd-efgh",
    "alert": [
        {
            "alertType": "call",
            "sender": "+447777100100",
            "recipientList": "+447777100100",
            "tag": "t1",
            "voiceFormat": "tts",
            "content": "Hello, this is a test announcement. Please press any key and then hangup. Thank you.",
            "contentEncoding": "utf8",
            "ivrControl": 
                "ivrRequireResponse": true,
                "ivrAttempts" : 3
            }
        }
    ]
}