CALLS display contact phone number directly in panel ?

[k26]

I can manage calls in order to display contact phone (instead of email)...picture 1
But I would like to know if it could be possible to display additional field in Call creation/display/update screen
I would like to directly see the contact's phone number..(picture 2)

I know it could be possible to add contact at the end of the screen with relationship (picture 3) but in this case I need to select and fill 2 times the same contact ...not a good user experience

is that possible ? to add telephone, or any other field I would like to see from the contact in the panel ?
thanks for your answers

[tanya]

displaying phone number in Participants panel requires a lot of development.
Did you try to refresh the page after select a Contact in Contacts panel? If you use the same relationship, this contact has to be in Participants panel as well

[k26]

ah yes you're right, I believed I got to enter 2 times the contacts, but it refreshes like you mentioned.
I will keep as I did for the moment. Thanks for answer;