From a Home screen, tap Apps (located at the bottom).
From the Apps tab, tap Contacts .
From the 'All contacts' tab (located at the top), tap a contact.
Tap Edit .
Edit any of following information then tap Done (located in the upper left): To change the account type, tap the Dropdown menu located at the top then tap the preferred account (e.g. Phone, Google, etc.). Depending upon the account type, the options presented may vary.
Phone To add a pause (a 2-second delay between numbers) or wait, tap * # then tap Pause or Wait as appropriate.