{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Sid": "SNSReadOnlyAccess",
      "Effect": "Allow",
      "Action": [
        "sns:GetTopicAttributes",
        "sns:List*",
        "sns:CheckIfPhoneNumberIsOptedOut",
        "sns:GetEndpointAttributes",
        "sns:GetDataProtectionPolicy",
        "sns:GetPlatformApplicationAttributes",
        "sns:GetSMSAttributes",
        "sns:GetSMSSandboxAccountStatus",
        "sns:GetSubscriptionAttributes"
      ],
      "Resource": "*"
    },
    {
      "Sid": "SMSAccessViaSNS",
      "Effect": "Allow",
      "Action": [
        "sms-voice:DescribeVerifiedDestinationNumbers",
        "sms-voice:DescribeAccountAttributes",
        "sms-voice:DescribeSpendLimits",
        "sms-voice:DescribePhoneNumbers",
        "sms-voice:DescribeOptedOutNumbers"
      ],
      "Resource": "*",
      "Condition": {
        "StringEquals": {
          "aws:CalledViaLast": "sns.amazonaws.com"
        }
      }
    }
  ]
}