Very simply using XML strings over HTTP with System.Net.Webclient, you can do something like:
using System.Net;
using System;
public class UpdateUser
{
static public void Main ()
{
ServicePointManager.ServerCertificateValidationCallback = (sender, cert, chain, sslPolicyErrors) => true; //Install CUCM cert and remove this for production use
WebClient client = new WebClient ();
// Optionally specify an encoding for uploading and downloading strings.
client.Encoding = System.Text.Encoding.UTF8;
client.Headers.Add("Authorization","Basic QWRtaW5pc3RyYXRvcjpjaXNjb3BzZHQ=");
client.Headers.Add("SOAPAction","CUCM:DB ver=11.5 updateUser");
// Upload the data.
string reply = client.UploadString ("https://ds-ucm115-1.cisco.com:8443/axl/","<soapenv:Envelope xmlns:soapenv='http://schemas.xmlsoap.org/soap/envelope/' xmlns:ns='http://www.cisco.com/AXL/API/8.5'><soapenv:Header/><soapenv:Body><ns:updateUser><userid>dstaudt3</userid><password>password</password><pin>123456</pin></ns:updateUser></soapenv:Body></soapenv:Envelope>");
// Disply the server's response.
Console.WriteLine (reply);
}
}
You can get fancier/more abstract by an XML document writer, or using a SOAP compiler framework, but if your needs are simple, string manipulation tends to avoid a lot of overhead and complexity...