Some month ago i was wondering when the blockchain would finally be used to connect people over the phone, you had this wonderful idea first in the market, i hope it will have success. What is the purpose of the coin if the payments are made in ETH?
Payments were made in ETH only in the prototype showed on demo. It was just to simplify the development a bit.
On alpha version which will be released soon there'll be only only payments with EXY (on Kovan network currently for tests)
Also the use of token goes beyond just payments - we're planning incentivising people to hold it by making able to access premium features for holders with certain amount of EXY in their wallets. More on that in the whitepaper available on experty.io website