Basic snow alert

Send a basic snow alert using SMS. Specify client ref, alert type, recipient list, content and sender (sender ID modification).

{
  "version" : "latest",
  "apiKey" : "abcdefghijklmnopqrstuvwxyz", 
  "clientRef" : "LondonSnow",
  "options": {
    "notification" : "poll",
    "notificationType" : "json"
  }
  "alert" : [ 
    {
        "alertType" : "sms",
        "tag" : "LondonSnowSMSTag",
        "recipientList" : "+447777100100,+447777100101,+447777100102",
        "content" : "Due to snow the school will be closed today",
        "contentEncoding" : "utf8"
        "sender" : "SNOW ALERT"
    }
  ]
}