Re: To speak to someone?
"
A phone call:
has none of the above
"
Horses for courses.
You cannot beat a live conversation when it comes to discussing a complex issue, and such discussions are a lot faster when they involve voice communication than when they are conducted textually.
As just one example, think of discussing a medical issue with a doctor so that the doctor ends up with a reasonable diagnoses. Each answer to a question provokes a new question that is based upon the previous answer. This would require many rounds of emails, but could be achieved in a single fairly short discussion.