Seems to be pretty hit or miss depending on who you're dealing with (unfortunately.)
I have clients who will repeatedly call me, or email me, asking about things that were already explained absolutely crystal-clear in an email. Some people won't spend more than 3 seconds reading an email even if it contains 4-5 paragraphs of very important information. Extremely annoying.
Others never call me at all, as both of us are very responsive to email, and actually read them in their entirety. One of my main clients hasn't had the need to speak with me on the phone for months because of this, and all is going well.
It sounds to me like you're doing everything right... but don't count on others to do so.
G19 Gen3 / G26 Gen3
"Only tyrants need fear tyrant-killers."