Online bartering service

A method of receiving an online bartering service at first user equipment, the method comprising:

• transmitting a request including information on a trading coupon and a trading condition thereof to a service server;
• receiving from the service server information on a list of candidate coupons each having a trading condition matched with the trading condition of the trading coupon;
• and
• transmitting a trading offer message including information on a selected candidate coupon to the service server.

A service server of an online bartering service, the service server configured to:

• register a trading coupon of first user equipment in response to a registration request from the first user equipment;
• provide information on a list of candidate coupons to the first user equipment based on information on the trading coupon of the first user equipment;
• receive a trading offer message with information on a selected candidate coupon from the first user equipment and transmit the trading offer message to second user equipment having the selected candidate coupon;
• and
• automatically process a difference between the trading coupon and the selected candidate coupon in connection with associated virtual accounts upon receiving a trading acceptance message from the second user equipment.