I haven't found this to be true, and I've done some pretty large enterprise deals 100% over email.
People usually want a call because they don't know something, not 'just because.'
Depends at what level the company is at, especially if they're non-technical. I've found that non-tech VPs and executives definitely want a call, they'd never approve an email-only deal.
Depends at what level the company is at, especially if they're non-technical. I've found that non-tech VPs and executives definitely want a call, they'd never approve an email-only deal.