The phrase "one's first point of call" means the initial place that someone goes to or the first thing they do in a particular situation. Full definition
By 2020, we hope to have changed the way Asian enterprises think about fulfilling their legal needs and become first point of call for day - to - day legal documents as well as a portal to access broader legal resources. (asialawportal.com)
When considered this also seems slightly counter-intuitive, as summer tends to be nice outside and sitting in dark room full of people rustling Revell's packets whilst checking Facebook, wouldn't be peoples first point of call for entertainment. (gameondaily.com)