make a call from installed voip from asp.net software

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we have a asp.net software .
one of my customer has a voip tech to handle calls . his system config that which number connect to which phone.
he want us that when the phone ring we get the number and search our software database and find the name of his costumer and show the name.
he also want when one of employee click in one of his customer record in our software and click call we pass the number to the phone and make the call from his voip.
i googled but i couldnt find the my answer, all of answer in to config the voip or call from skype or some other software api like that.
i want to work from phone ring to show title or pass number to phone and i dont want to know about other operation
is this possible? hase any one any lead that i can start to search about it?

Posted 13-Nov-15 3:49am

alirezasix

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Dave Kreskowiak · Answer 1 · 2015-11-13T04:02:00

Solution 1

You're not doing any of this from ASP.NET. All of your ASP.NET code runs server-side and is not capable of "pushing" anything to the client that the client did not request.

That's why you can't find anything on it. You don't approach this problem from the standpoint of the server. You do it from the standpoint of the client. You need to search for java or javascript solutions to this, not ASP.NET.

Posted 13-Nov-15 4:02am

Dave Kreskowiak

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alirezasix 13-Nov-15 10:24am

voip havent any webservice that could be called ? and i use singletone?

alirezasix 13-Nov-15 10:25am

voip hasent any webservice that could be called? or any signalled that i use singletone to handle it?

Dave Kreskowiak 13-Nov-15 13:49pm

I have no idea. You're going to have to go over the documentation on your phone installation to find out.

Your client-side code would be the code that communicates with the VOIP system.

J Gregory · Answer 2 · 2015-12-15T19:45:00

It can be easily done since most voip client software registers itself capable to handle SIP URI. This means that you can add any sip link to your webpage and it will be recognized by browser (will launch the pre-installed client if somebody clicks on your link). This is like a normal http link but with sip. Example:
sip:\\phonenumber@voipserver.com.

Let's see if it is working from here using my voip server:
click to call
(it works if your softphone will launch a call to testivr3 if you click on the above link)