Cisco Unified Call Manager (CUCM) AXL API Update Phone successed but no change in my device

Question

I'm working with cisco CUCM AXL API & C#,

I want to change description's phone.There is no problem in my code ,but the device phone still with the recent description , when i access to Cisco mangement , i find the new description but on on the device . Any idea why ?

This my code :

    private bool subUpdateDevice(string _pattern, string _name, string _device, int _index)
    {

        HttpWebRequest req = (HttpWebRequest)WebRequest.Create(@"https://xxx.xxx.xxx.xxx:8443/axl/");
        req.ProtocolVersion = HttpVersion.Version10;

        req.Method = "POST";
        req.Host = "xxx.xxx.xxx.xxx:8443";
        req.ProtocolVersion = System.Net.HttpVersion.Version10;
        req.ContentType = "text/xml";
        req.Accept = "text/xml";
        req.Headers.Add("Authorization", "Basic " + Convert.ToBase64String(System.Text.ASCIIEncoding.ASCII.GetBytes("XXXXX:xxxxx")));

        string strAXLRequest = "<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" ";
        strAXLRequest += "xmlns:ns=\"http://www.cisco.com/AXL/API/10.5\">";
        strAXLRequest += "<soapenv:Header/><soapenv:Body>";
        strAXLRequest += "<ns:updatePhone>";
        strAXLRequest += "<name>" + _device + "</name>";
        strAXLRequest += "<lines><line>";
        strAXLRequest += "<index>" + _index + "</index>";
        strAXLRequest += "<display>" + _name + "</display>";
        strAXLRequest += "<dirn>";
        strAXLRequest += "<pattern>" + _pattern + "</pattern>";
        strAXLRequest += "</dirn>";
        strAXLRequest += "<displayAscii>" + _name + "</displayAscii>";
        strAXLRequest += "</line></lines></ns:updatePhone>";
        strAXLRequest += "</soapenv:Body></soapenv:Envelope>";

        System.Net.ServicePointManager.ServerCertificateValidationCallback = delegate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors) { return true; };

        req.ContentLength = strAXLRequest.Length;
        try
        {
            Stream s = req.GetRequestStream();

            byte[] buffer = System.Text.Encoding.UTF8.GetBytes(strAXLRequest);
            s.Write(buffer, 0, strAXLRequest.Length);
            s.Close();
            try
            {
                WebResponse resp = req.GetResponse();

                s = resp.GetResponseStream();
                StreamReader sr = new StreamReader(s);
                string outputString = sr.ReadToEnd();

                sr.Close();
                s.Close();
                resp.Close();


                if (outputString.Contains("updatePhoneResponse"))
                {
                    return true;
                }
                else return false;
            }
            catch (Exception ex)
            {
                string excep = ex.ToString();
                return false;
            }
        }
        catch (WebException wex)
        {
            string excep = wex.ToString();


            return false;
        }
        catch (NotSupportedException nex)
        {
            string excep = nex.ToString();

            return false;
        }
        catch (ObjectDisposedException oex)
        {
            string excep = oex.ToString();

            return false;
        }
        catch (ProtocolViolationException pex)
        {
            string excep = pex.ToString();


            return false;
        }

    }

Answer 1

I found it , I must apply config as in CUCM .

My code is for changing data in phone , but if we need to apply the new config we should call ApplyPhone .. and finallay it works for me : this is the code (just changing the strAXLRequest

      string strAXLRequest = "<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" ";
        strAXLRequest += "xmlns:ns=\"http://www.cisco.com/AXL/API/10.5\">";
        strAXLRequest += "<soapenv:Header/><soapenv:Body>";
        strAXLRequest += "<ns:applyPhone>";
        strAXLRequest += "<name>" + _device + "</name>";
        strAXLRequest += "</ns:applyPhone>";
        strAXLRequest += "</soapenv:Body></soapenv:Envelope>";