1. Some phones have been purchased by OTE. (The phones can either be already tagged or RFID tags can be installed after the arrival of the phones) Phone ID <phone> <rfid>AD094126252DE43465 <phone info> … … … … … <history> <event 1> <order> … … <event 2> <arrival> … … … </phone> Phone Info • Employees insert general information for the phones into the system (can be omitted if the GDSN can be accessed) Phone History • The phones arrive to the warehouse where RFID readers detect the phones and store information into the system about each individual phone (like arrival date) RFID reader

2. When a costumer asks information about a specific product, the salesman can inform him/her about the exact product’s characteristics • Whenever a phone gets sold to a costumer, information about the purchase (like the MSN number, purchase date etc.) is stored into the system and it gets correlated with the phone’s RFID number RFID reader <phone> <rfid> AD094126252DE43465 <phone info> … … <history> <event 1> <order> … … <event 2> <arrival> … … <event 3> <purchase> … … … </phone> Phone ID Phone Info Add to <history> Phone History

3. When a costumer brings the phone back for service, support, etc on any store, info about that event is stored in the specific product’s history <phone> <rfid> AD094126252DE43465 <phone info> … <history> <event 1> <order> … <event 2> <arrival> … <event 3> <purchase> … </phone> Phone ID Store Phone Info Phone History Service <event 4> <support> … </phone> <event 5> <service> … </phone>