@feli bouncing e-mails off each other can take a while, however a phone call can be good to arrange a meeting for example then an e-mail follows up with the confirmation
e.g I phone you to invite you to interview
you say you can attend, I send details via e-mail you reply to confirm
job done
I guess there is a time / place for everything a phone call will allow for voice inflections, harder to get across in e-mails sometimes.