The getTelephonyLinksSupported method specifies whether or not you can use a link to directly dial a telephone number. If a mobile device meets this condition and supports telephony links, a WTAI (Wireless Telephony Application Interface) link is used.

If the device does not meet the condition, the phone number should be displayed on the screen, so the user can dial it afterwards.

WAP-enabled Nokia devices allow you to dial phone numbers displayed on the screen by using the [USE NUMBER] function. Since this dial operation does not use WTAI links, the getTelephonyLinksSupported method returns the value false for these devices.

<%@ page import="com.sap.mobile.clientinfo.*" %>
<%! String contentType; %>
<%
ClientInfo clientInfo = ClientInfoFactory.newInstance().newClientInfo();
clientInfo.load(request);
contentType = clientInfo.getContentType();
%>
<%response.setContentType("text/vnd.wap.wml");%>
<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN" "http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>
<card id="karte1" title="Dialling Example">
<% if (clientInfo.isTitleSupported() == false)
{ %>
<p align="center">
<% if (clientInfo.isEmphasizedSupported() == true) { %>
<em>Dialling Example</em>
<% } else { %>
Dialling Example
<% } %>
</p>
<% } %>
<p>
<% if (clientInfo.isTelephonyLinksSupported() == false)
{ %>
Dialling is not supported on this device
<% } else { %>
use softkey for dialling!
<a href="wtai://wp/mc;+496227764900">+49 6227 7 64900</a>
<do type="options" label="Dial">
<go href="wtai://wp/mc;+496227764900"/>
</do>
<% } %>
</p>
</card>
</wml>