Click to Call - Firefox Add-on

Updated May 2015

Click on any phone number on any web page and your phone dials the number!

How does it work?

  1. See phone number.
  2. Click phone number.

This Firefox add-on locates telephone numbers in web pages and converts them to Click-to-Call links on the fly.

When you roll over a phone number with your mouse, you will see the number change to a link:

When you click on one of these links, a call is placed to your OnSIP SIP address. When you answer, the call is patched through to the telephone number.

You need an OnSIP account to use this Firefox add-on and standard calling rates will apply.


You can obtain the add-on here. Or search for "onsip". Or in Firefox, choose Tools, Add-ons. From the add-ons menu choose "get add-ons" and search for onsip.


  1. After installing the Click-to-Call plugin it must be configured with your OnSIP user address in order for it to place the first leg of the call setup. To configure go to the Firefox Tools menu and select "Add-ons".
  2. From the "Add-ons" window select the OnSIP Click-To-Call plugin and press "Preferences"

  3. In the OnSIP Options pane enter your OnSIP user address into the text input area.

  4. Click 'OK' and you should be all set


If you see the following error when you try to perform a click-to-call setup then please see the section above titled "Configure"

Was this article helpful?
0 out of 1 found this helpful
Have more questions? Submit a request


Powered by Zendesk