This link uses the 'tel link protocol which instructs mobile phones to prompt the user to confirm their intent to call, here's example link.
The settings page for the plugin lets you specify what days and times the button should be displayed on your site it then uses JavaScript to show and hide itself automatically..
That's the limitation of all the click to call and call now button plugins.
The advanced options of the plugin turns your website into telephone with call recording, voicemail and SMS message features thanks to Twilio API..
Using WEBRTC it's possible to turn browsers into telephones which enable your users to click and call from their computer, no software is required, the user clicks the icon and grants your website access to their microphone, see screenshots..
Within moments the number you set in the options will start ringing and you'll be able to chat with your visitor the only difference is instead of them using phone to call you they're using the microphone and speakers on their computer to chat with you..
Inbound Call Handler You can point unlimited amount of Twilio numbers to the plugin and have them forward calls to the number you set see the settings page for Request URL you need to configure your numbers with...
Control the plugin by SMS If you point SMS Twilio Number to the plugin you will be able to turn the service on and off by texting on or off to that number.
SMS You can point any number of SMS Twilio numbers at the plugin and each time someone texts your number they will receive your default reply and you'll get their message forwarded on to you by SMS, email or both.
SMS Keywords to PHP Functions The first word of any message is called 'keyword, the plugin maps keywords to PHP functions.
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