Initiate call automatically using tel in Href

Question

I am trying to call via Html.I have tried this
<a href='+2000000200200'>Please Click to Call</a>
Now when I click on this , it opens the the dialer having this number and then I press call and it initiates the call.
Now the thing I am trying to do is When I click the link , it automatically initiate the call.I mean the step of Dialler open and pressing call must be skip.So whenever I click the link it should start making call
Is it possible to do like this?I Really need experts advice about this
Thanks

score 1 · Answer 1 · answered Feb 28 '14 at 09:53

1

Sorry is not possible and is inteend to be that way. Making the call needs a 3rd application and ofc you wouldnt want anyone making calls or even by mistake a call being made by just clicking.

answered Feb 28 '14 at 09:53

Luis Lopes

506
4
14

ok thanks for the answer but I want to know WHY? is it some sort of TEL protocol limitation or OS limitation or what? – Despicable Feb 28 '14 at 09:55
It's not a question of the TEL protocol, it's a question of how the client browser / client device choses to handle such events. You cannot override OS behaviour just by writing different code on your website. If you could, it would be a major security problem. – Alexander Feb 28 '14 at 11:30

score 0 · Accepted Answer · edited May 23 '17 at 12:20

0

You can write a custom protocol handler for this type of thing, but the handler obviously needs to be installed on the machine using it.

Check this stackoverflow thread for custom protocol handling in ios and android.

Custom protocol handling windows

Using C#, register registry keys:

RegistryKey Key = Registry.ClassesRoot.CreateSubKey("test");
Key.CreateSubKey("DefaultIcon").SetValue("", "caller.exe,1");
Key.SetValue("", "call:Protocol");
Key.SetValue("URL Protocol", "");
Key.CreateSubKey(@"shell\open\command").SetValue("", "caller.exe %1");

Caller.exe being your handler:

using System;
using System.Collections.Generic;
using System.Text;

class Program
{
    static void Main(string[] args)
    {
        // args[0] contains the phone number
    }
}

Finally:

<a href="call:2000000200200">Call Number</a>

edited May 23 '17 at 12:20

Community

1
1

answered Feb 28 '14 at 09:56

cstruter

1,087
10
20

but it wont work on Android or Iphone? right? It will work on only windows phone? – Despicable Feb 28 '14 at 09:59
Check this thread out as well: http://stackoverflow.com/questions/11421048/android-ios-custom-uri-protocol-handling – cstruter Feb 28 '14 at 10:03
ok but it seems that just to provide this functionality , we need to build a App first , install it on users machine/mobile and then it will behave like our requirements. Doesn't sound logical for me. – Despicable Feb 28 '14 at 10:10
Yup, exactly, you will have to build an app that handles it etc – cstruter Feb 28 '14 at 10:11
ok , but one last thing.I only have to visit him my web site and just for this I ask him to first install this app and after then visit my web site? isn't it ironic? – Despicable Feb 28 '14 at 10:13
Lol, unfortunately if you want someone to make calls via a link (like your requirement) this is the route you will have to take. – cstruter Feb 28 '14 at 10:14

Initiate call automatically using tel in Href

2 Answers2