dial-rule-application, and "Change other fields" is the one without it.{
"phonenumber": "15555550123",
"enabled": "yes",
"dial-rule-application": "to-user",
"dial-rule-parameter": "",
"dial-rule-translation-destination-user": "1001",
"dial-rule-translation-destination-host": "example.com",
"dial-rule-translation-source-name": "[*]",
"dial-rule-description": "Main line",
"sms-enabled": true,
"sms-application": "available",
"sms-carrier": "bandwidth",
"sms-dest": "1001"
}