CanInitiateVoiceCall Property
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HttpCapabilitiesBase.CanInitiateVoiceCall Property

Gets a value indicating whether the browser device is capable of initiating a voice call.

Namespace: System.Web.Configuration
Assembly: System.Web (in system.web.dll)

public virtual bool CanInitiateVoiceCall { get; }
/** @property */
public boolean get_CanInitiateVoiceCall ()

public function get CanInitiateVoiceCall () : boolean

Not applicable.

Property Value

true if the browser device is capable of initiating a voice call; otherwise, false. The default is false.

The CanInitiateVoiceCall property applies only to WML-compatible mobile devices.

The following code example shows how to determine whether the browser device is capable of initiating a voice call.

<%@ page language="C#"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
<script runat="server">
    void Page_Load(Object Sender, EventArgs e)

    void CheckBrowserCaps()
        String labelText = "";
        System.Web.HttpBrowserCapabilities myBrowserCaps = Request.Browser;
        if (((System.Web.Configuration.HttpCapabilitiesBase)myBrowserCaps).CanInitiateVoiceCall)
            labelText = "Browser can initiate a voice call.";
            labelText = "Browser cannot initiate a voice call.";

        Label1.Text = labelText;

<html xmlns="" >
    <title>Browser Capabilities Sample</title>
    <form runat="server" id="form1">
            Browser Capabilities:
            <p/><asp:Label ID="Label1" Runat="server" />

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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