Response 1 : At long as we didn't have access to the source code of the IP Phone Firmware : NO
Response 2 : Always on the screen : NO , for the same reason, but, you can use the "URL Idle" like already answered.
You should configure an the URL IDLE to point the CallManager (or other web server) and you must send XML to the phone
You SHOULD really use the IP Phone SDK from Cisco !!! (Availaible on the web, I dont know if you must be partner or not) ..
****** CODE SAMPLE********<
<%@ Language=JavaScript %>
<%
var serverIP;
serverIP = Request.ServerVariables("LOCAL_ADDR");
Response.ContentType = "text/xml";
Response.Buffer = true;
Response.Write("COMPAGNY_NAME_HERE-1-1111\r\n592 BINARY_DATA_OF_THE_LOGO (XML FORMAT) SOMETHING ");
Response.Flush();
%>
***********
This code is a example, it's a .asp file that is pointed on the URL ILDE parameter of the phone . The Code (JScript) is interpreted on the server-side, and the resulting XML (parse) is receive by the IP Phone .
Personnaly, i Receive the "logo" code by a friend who having the tool to "code" a image to XML binary . I don't know what was the tool used .
Good Luck !
Martin
