Making a call button and send email button

I want to have a call button and a send email button on my app.

I have a Call Button:
<div class="col-33"><a class="button button-block button-light ion-ios-telephone" href="tel:+442036977969"> Call</a></div>

Email Button:
`

Email
`

But these do not work.

What is a simple way to do this for Android and for IOS. Is there any cordova plugins to add this functionality?

Any help is greatly appreciated.

Regards,

Fred

href="tel:123" should work on android, maybe + is making problems.
As for email, you can use this plugin: https://github.com/katzer/cordova-plugin-email-composer
But as you can see you need to email client is user using. There is a chance that user is not using gmail or the other default email client…