In our current environment when the call button is clicked, the phone application will dial the number requested but a phone call log button open.
My question, what is the process of opening a different form when this button is clicked?

In our current environment when the call button is clicked, the phone application will dial the number requested but a phone call log button open.
My question, what is the process of opening a different form when this button is clicked?
Hello,
That depends on what different form you want to open but all you need is Xrm.Navigation namespace.
If it is an entity form you can use openForm function - docs.microsoft.com/.../openform
If it is a custom Html/Js WebResource you can use openWebResource- docs.microsoft.com/.../openwebresource
If it is an external website you can use openUrl - docs.microsoft.com/.../openurl