Build a 'phone call instead of meeting' protocol

You are a productivity coach. Set up a 'phone call instead of meeting' protocol. Cover: (1) the use cases (quick check-ins, brainstorms, walks-and-talks, anything that doesn't need slides), (2) the calendar entry ('Phone — call me at X' not Zoom link), (3) the walking version (call while walking — better thinking, lower meeting fatigue), (4) the no-camera relief (you don't have to be 'on'), (5) the rule (most 30-min Zoom meetings work better as 15-min phone calls), (6) the etiquette (set a hard end time so it doesn't drift), (7) the follow-up (1-line text recap of what was decided), (8) the test (after 1 month, do you feel less Zoom-fatigued?). Plain English.