The official standard for providing a telephone number as a URI is here: http://www.ietf.org/rfc/rfc3966.txt

It basically says use `tel:` as the prefix, and start the number with `+[international dialling code]` before the number itself. You can put non-numeric characters as separators (e.g. -) but they must be ignored. So a London (UK) number might be:

    tel:+44-20-8123-4567

A New York (US) number:

    tel:+1-212-555-1234

There is such a URI scheme: `tel`. It has an elaborate syntax, but here is a simple example of its usage:

    tel:123-4567

For the full specification, refer to http://www.ietf.org/rfc/rfc3966.txt .

I&#39;m after the same sort of functionality for Microsoft Office Communicator. After a bit of investigation I found that the following URI syntax will initiate a (VoIP) phone call via communicator: 

    tel:+number

eg: to get communicator to call my extension:

    tel:+7780


`sip:` (or `sips:`) is the [official URI scheme][1] for SIP, and I think `callto:` was used by Skype, but is deprecated.


  [1]: http://en.wikipedia.org/wiki/URI_scheme#Official_IANA-registered_schemes

I&#39;m writing a small tray application that needs to detect the last time a user interacted with their machine to determine if they&#39;re idle.

Is there any way to retrieve the time a user last moved their mouse, hit a key or interacted in any way with their machine?

I figure Windows obviously tracks this to determine when to display a screen saver or power down, etc, so I&#39;m assuming there&#39;s a Windows API for retrieving this myself?

C# - Detect time of last user interaction with the OS

Long story short: I&#39;m in a situation where I&#39;d like a PHP-style getter, but in JavaScript.

My JavaScript is running in Firefox only, so Mozilla specific JS is OK by me.

The only way I can find to make a JS getter requires specifying its name, but I&#39;d like to define a getter for *all* possible names.  I&#39;m not sure if this is possible, but I&#39;d very much like to know.

JavaScript getter for all properties

Much like the &quot;mailto&quot; URL prefix launches the user&#39;s default mail program and starts a new email with specified address, is there a similar URL scheme that would initiate a phone call? Perhaps &quot;phone,&quot; &quot;call,&quot; or &quot;sip&quot;?

Incidentally, I&#39;m targeting a platform that is using Cisco CUPS, so there may be a platform-specific way for me to initiate a call that is particular to Cisco, but I thought I&#39;d ask the more general question first. However if anyone knows specifically how to programmatically initiate a call via CUPS, that would be great too.

URL Scheme for Phone Call

<p>Much like the "mailto" URL prefix launches the user's default mail program and starts a new email with specified address, is there a similar URL scheme that would initiate a phone call? Perhaps "phone," "call," or "sip"?</p>
<p>Incidentally, I'm targeting a platform that is using Cisco CUPS, so there may be a platform-specific way for me to initiate a call that is particular to Cisco, but I thought I'd ask the more general question first. However if anyone knows specifically how to programmatically initiate a call via CUPS, that would be great too.</p>


All I want is to get the website URL. Not the URL as taken from a link. On the page loading I need to be able to grab the full, current URL of the website and set it as a variable to do with as I please.


Get the current URL with JavaScript?

What is the character limit for a URL, especially if the URL is formed from a GET method of a form.

What is the character limit on URL

how would you extract the domain name from a URL, excluding any subdomains?

My initial simplistic attempt was:

    &#39;.&#39;.join(urlparse.urlparse(url).netloc.split(&#39;.&#39;)[-2:])

This works for http://www.foo.com, but not http://www.foo.com.au.
Is there a way to do this properly without using special knowledge about valid TLDs (Top Level Domains) or country codes (because they change).

thanks

How to extract top-level domain name (TLD) from URL

I am accessing a link on my site that will provide a new image each time it is accessed.

The issue I am running into is that if I try to load the image in the background and then update the one on the page, the image doesn&#39;t change--though it is updated when I reload the page.


    var newImage = new Image();
    newImage.src = &quot;http://localhost/image.jpg&quot;;
    
    function updateImage()
    {
	if(newImage.complete) {
		document.getElementById(&quot;theText&quot;).src = newImage.src;
		newImage = new Image();
		number++;
		newImage.src = &quot;http://localhost/image/id/image.jpg?time=&quot; + new Date();
	}
    	
    	setTimeout(updateImage, 1000);
    }

Headers as FireFox sees them:

    HTTP/1.x 200 OK
    Cache-Control: no-cache, must-revalidate
    Pragma: no-cache
    Transfer-Encoding: chunked
    Content-Type: image/jpeg
    Expires: Fri, 30 Oct 1998 14:19:41 GMT
    Server: Microsoft-HTTPAPI/1.0
    Date: Thu, 02 Jul 2009 23:06:04 GMT

I need to force a refresh of just that image on the page. Any ideas?


Refresh image with a new one at the same url

Something like:

    /**
     * See {@linktourl http://google.com}
     */



Linking to an external URL in Javadoc?

I want to mark up a phone number as callable link in an HTML document. I have read [the microformats approach](http://microformats.org/wiki/hcard-faq#How_do_you_mark_up_a_phone_extension), and I know, that the `tel:` scheme would be standard, but is quite literally nowhere implemented.

Skype defines, as far as I know, `skype:` and `callto:`, the latter having gained some popularity. I assume, that other companies have either other schemes or jump on the `callto:` train.

What would be a best practice to mark-up a phone number, so that as many people as possible with VoIP software can just click on a link to get a call?

Bonus question: Does anyone know about complications with emergency numbers such as 911 in US or 110 in Germany?

Cheers,

**Update:** Microsoft NetMeeting takes `callto:` schemes under WinXP. [This question](https://stackoverflow.com/questions/1009181/url-scheme-for-phone-call) suggests, that Microsoft Office Communicator will handle `tel:` schemes but not `callto:` ones. Great, Redmond!

**Update 2:** Two and a half years later now. It seems to boil down to what you want to do with the number. In mobile context, `tel:` is the way to go. Targeting desktops it&#39;s up to you, if you think your users are more Skype people (`callto:`) or will more likely have something like Google Voice (`tel:`) installed. My personal opinion is, when in doubt use `tel:` (in line with @Sidnicious&#39; answer).

**Update 3:** User @rybo111 noted, that Skype in Chrome has meanwhile jumped on the `tel:` bandwagon. I cannot verify this, because no machine with both at hand, but if it&#39;s true, it means we have finally a winner here: `tel:`

How to mark-up phone numbers?

iTunes, App Store and YouTube on iOS clearly register http://... URL schemes to open their apps.

Can anyone do that, not just your own protocol?

The reason I want to do this is that I am working on an app for a festival. I want to &quot;intercept&quot; links to specific pages on the website and launch the app instead, if installed.

So far I have no had much luck 

Possible to handle your own http URL schemes in iOS?

from my Android app, I would like to open a link to a Facebook profile in the official Facebook app (if the app is installed, of course). For iPhone, there exists the `fb://` URL scheme, but trying the same thing on my Android device throws an `ActivityNotFoundException`.

Is there a chance to open a Facebook profile in the official Facebook app from code?

Open Facebook page from Android app?

Assume that the scheme for a uri is &quot;file&quot;. Also assume that the path starts with &#39;.&#39; 

An example path is &#39;./.bashrc&#39;. How would the fulluri look? &#39;file://./.bashrc&#39; appears odd to me. 

File Uri Scheme and Relative Files

I&#39;ve recently discovered the awesome *iOS5 custom Settings URL Scheme*, which can be explained in detail at this great [website][1].



I&#39;ve found this to work, directing the user to the Settings app from my application:

    [[UIApplication sharedApplication] openURL:
           [NSURL URLWithString:@&quot;prefs:root=General&quot;]];

But cannot seem to route directly to the **Restrictions** path via the `path` parameter:

    [[UIApplication sharedApplication] openURL:
       [NSURL URLWithString:@&quot;prefs:root=General&amp;path=Restrictions&quot;]];

Has anyone found documentation on this or been able to make this work? 

 Any insight would be greatly appreciated.  I&#39;m trying to take the user to enable in-App purchasing, and would rather not have the user manually click on Restrictions (not very obvious).



  [1]: http://handleopenurl.com/scheme/apple-settings-app

iOS Launching Settings -&gt; Restrictions URL Scheme

I want to block calls from few numbers, for that I want to write a app of my own.
So what are the APIs which I should be using?

Basically I want to get notified when a call comes, i want to compare numbers if it is what i want to block, i want to cut the call or mute it or if possible mute it and record it.




How to block calls in android

I am launching an activity to make a phone call, but when I pressed the &#39;end call&#39; button, it does not go back to my activity.  Can you please tell me how can I launch a call activity which comes back to me when &#39;End call&#39; button is pressed? This is how I&#39;m making the phone call:

        String url = &quot;tel:3334444&quot;;
        Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse(url));



How to make a phone call in android and come back to my activity when the call is done?

I need to build a web page for mobile devices. There&#39;s only one thing I still haven&#39;t figured out: how can I trigger a phone call through the click of text?

Is there a special URL I could enter like the `mailto:` tag for emails?

Device specific solution are not preferred.

I know iPhone automatically recognizes phone numbers and creates a link for this, but it would be great if this could be done for images too... and also for most mobile devices.

How to trigger a phone call when clicking a link in a web page on mobile phone

To make a phone call via HTML on an iPhone I create an `&lt;A/&gt;` tag with an href formatted as: `&lt;a href=&#39;tel:123-555-1212&#39;&gt;Dial Me&lt;/a&gt;`.

Is there an equivelant for HTML on Android?

CLARIFICATION - using the format href=&#39;tele:123-555-1212&#39; does indeed work on on android.  I was testing the app within a native Java wrapper on the device.  It does not appear as if we can make a call from a web application hosted in a Native Wrapper.


Can I make a phone call from HTML on Android?

I&#39;m using the following code to make a call in Android but it is giving me security exception please help.

     posted_by = &quot;111-333-222-4&quot;;
           
     String uri = &quot;tel:&quot; + posted_by.trim() ;
     Intent intent = new Intent(Intent.ACTION_CALL);
     intent.setData(Uri.parse(uri));
     startActivity(intent);

permissions

     &lt;uses-permission android:name=&quot;android.permission.CALL_PHONE&quot; /&gt;

Exception

    11-25 14:47:01.661: ERROR/AndroidRuntime(302): Uncaught handler: thread main exiting due to uncaught exception
    11-25 14:47:01.681: ERROR/AndroidRuntime(302): java.lang.SecurityException: Permission Denial: starting Intent { act=android.intent.action.CALL dat=tel:111-333-222-4 cmp=com.android.phone/.OutgoingCallBroadcaster } from ProcessRecord{43d32508 302:com.Finditnear/10026} (pid=302, uid=10026) requires android.permission.CALL_PHONE
    11-25 14:47:01.681: ERROR/AndroidRuntime(302):     at android.os.Parcel.readException(Parcel.java:1218)
    11-25 14:47:01.681: ERROR/AndroidRuntime(302):     at android.os.Parcel.readException(Parcel.java:1206)
    11-25 14:47:01.681: ERROR/AndroidRuntime(302):     at android.app.ActivityManagerProxy.startActivity(ActivityManagerNative.java:1214)
    11-25 14:47:01.681: ERROR/AndroidRuntime(302):     at android.app.Instrumentation.execStartActivity(Instrumentation.java:1373)
    11-25 14:47:01.681: ERROR/AndroidRuntime(302):     at android.app.Activity.startActivityForResult(Activity.java:2749)
    11-25 14:47:01.681: ERROR/AndroidRuntime(302):     at android.app.Activity.startActivity(Activity.java:2855)
    11-25 14:47:01.681: ERROR/AndroidRuntime(302):     at com.Finditnear.PostDetail$2$1$1$1.onClick(PostDetail.java:604)
    11-25 14:47:01.681: ERROR/AndroidRuntime(302):     at com.android.internal.app.AlertController$AlertParams$3.onItemClick(AlertController.java:884)
    11-25 14:47:01.681: ERROR/AndroidRuntime(302):     at android.widget.AdapterView.performItemClick(AdapterView.java:284)
    11-25 14:47:01.681: ERROR/AndroidRuntime(302):     at android.widget.ListView.performItemClick(ListView.java:3285)
    11-25 14:47:01.681: ERROR/AndroidRuntime(302):     at android.widget.AbsListView$PerformClick.run(AbsListView.java:1640)




How to make a phone call using intent in Android?

If I use `tel:` I should write the international phone code, like that.

    &lt;a href=&quot;tel:+6494461709&quot;&gt;61709&lt;/a&gt;

So far, so good, but I can&#39;t find information on how to write a cell phone number in an &quot;international&quot; way, if there is one.

Content Type	Original Author	Original Content on Stackoverflow
Question	Jason Marcell	View Question on Stackoverflow
Solution 1 - Url	rjmunro	View Answer on Stackoverflow
Solution 2 - Url	abernier	View Answer on Stackoverflow
Solution 3 - Url	geofftnz	View Answer on Stackoverflow
Solution 4 - Url	instanceof me	View Answer on Stackoverflow

URL Scheme for Phone Call

Url Problem Overview

Url Solutions

Solution 1 - Url

Solution 2 - Url

Solution 3 - Url

Solution 4 - Url

JavaScript getter for all properties

C# - Detect time of last user interaction with the OS

Attributions