I just watched the Dev Stream on YouTube and wanted to fill you guys in on Medlink as the Captain is 100% involved. I'm a flight dispatcher for major U.S. carrier and am involved almost daily with Medlinks calls. When it comes to the attention of the flight attendant that there is a pax on board with a medical concern whether in the air or on the ground, (out of the gate) the flight attendant will gather info on the pax medical concern and inform the captain. At that point the captain will contact Airinc over UHF which is company with operators in San Francisco and New York who will then patch the captain to an operator at Medlink as well as dispatch. The Airinc operator and dispatch will listen in on the call between the Captain and Medlink. Often Airinc and dispatch will have to assist with relaying info due to broken transmissions. The captain will speak to a Medlink operator giving them all the details of the passenger. Details cover age, gender, seat number, and symptoms/concerns. After doing so, the operator will then get a physician on the line who reads over the info given by the captain and will ask more questions (is pax awake, breathing, etc) and will then give their diagnosis. The diagnosis will consist of a remedy like sugary beverage for low blood sugar, or even use items from the emergency medical kit. Lastly the Dr. will determine whether to continue to destination or divert. Obviously if a diversion is required EMS will need to be at the gate upon arrival and dispatch will coordinate the diversion as far as best airport to go to. If no diversion is required there may still be the need for EMS and maybe even priority handling from ATC. After all recommendations from the Medlink Dr. are given to the captain, (who relays all info to the flight attendant) captain, medlink, airinc, and dispatch will clear the UHF line for other flights to use. This seems like a somewhat complicated process, but i think could easily be simplified for the purpose of PACX. I would love to see this implemented if able. I can supply PLENTY of scenarios that I've dealt with in real life to help. Feel free to contact me on my email address in my account.