Resource for parameter [extensionId] is not found - SMS Send - With Password Flow

Body Response:

{ "errorCode" : "CMN-102", "message" : "Resource for parameter [extensionId] is not found", "errors" : [ { "errorCode" : "CMN-102", "message" : "Resource for parameter [extensionId] is not found", "parameterName" : "extensionId" } ], "parameterName" : "extensionId" }

Header Response:

X-Rate-Limit-Window : 60

Status_Code : 404

RoutingKey : SJC11P01PAS01

Http_Version : HTTP/1.1

Explanation : Not Found

Connection : close

Content-Language : en-US

Date : Tue, 13 Mar 2018 03:10:55 GMT

X-Rate-Limit-Group : medium

Server : nginx/1.10.2

RCRequestId : 2533297a-266c-11e8-a77d-005056bb26b9

Content-Type : application/json;charset=UTF-8

X-Rate-Limit-Limit : 40

X-Rate-Limit-Remaining : 39

Content-Length : 289

My Code:

<cfset base_url = "https://platform.devtest.ringcentral.com/restapi/"; />

<cfset authorization = setTokenType & " " & setAccessToken />

<cfset ringcentralSMS.to = "to number" />

<cfset ringcentralSMS.from = "from number" />

<cfset ringcentralSMS.text = "This is a test text." />

<cfset body = '{ "to": [{"phoneNumber": "#ringcentralSMS.to#"}], "from": {"phoneNumber": "#ringcentralSMS.from#"}, "text": "#ringcentralSMS.text#" }' />

<cfhttp

method="post"

url="#base_url#v1.0/account/~/extension/~/sms"

resolveurl="no"

getasbinary="never"

charset="utf-8"

>

<cfhttpparam type="header" name="content-type" value="application/json">

<cfhttpparam type="header" name="authorization" value="#authorization#">

<cfhttpparam type="body" value="#body#">

</cfhttp>