Ics Calendar Iphone. You should be able to import a calendar in ios, but you could simply sync to it if it’s on a compatible server (like gmail). Calendar invites sent to my email (usually.ics attachments, as they originate from a customers' exchange server) do not add and sync to my calendar.
The settings to subscribe to ics calendars are actually located in the mail,. *i recommend downloads cuz it’s only a momentary download.