For booking complex, non-fungible services (like Doctor's appointments, plumbers, etc) phones are great for high-bandwidth communication for follow-up questions

For booking complex, non-fungible services (like Doctor's appointments, plumbers, etc) phones are great for high-bandwidth communication for follow-up questions, triage, etc. Phones also allow a certain element of salesmanship which doesn't come through on a form, which a big reason why service providers like them.