I made this application for this purpose.
Setup the contact list. and add them into the app's contact list.
then , just tap the contact's photo , it will originate a call.
The user can also use the app with Skype.
##### Before adding contacts. please make sure sub items.
* the contact's picture is required.
* the contact's phone number might be at the 1st place.
fix bug for latest Skype.
* enhance the user experience.
* add new feature: if the user selects a contact , the app will read the contact's display name.
* add landscape view for tablet version.
* fix bug
* enhance the user experience , for skype outgoing call by using this phone phone dialer.
blog to introduce the app: http://studiobinghuan.blogspot.com