Method and system for facilitating exchange of items in a network

A method for defining a route between a first user and a second user having respective mobile devices, said method establishing communication between a backend server and a plurality of mobile devices, each of said mobile devices belonging to a user of a cellular phone network, the method comprising:

• a. said plurality of mobile devices capturing geographical position information and sending said geographical position information towards said backend server;
• b. said backend server receiving geographical position information from the plurality of mobile devices and inferring thereof geo-temporal mobility patterns related to each mobile device;
• c. said backend server receiving information from the cellular phone network about originated and terminated calls of the plurality of mobile devices and constructing thereof call graphs of each mobile device, said call graph comprising frequently used numbers and from where the calls are initiated and terminated;
• d. said backend server receiving a route definition request between two mobile devices belonging to the plurality of mobile devices, said two mobile devices being respectively associated to said first user and said second user;
• e. said backend server analysing said geo-temporal mobility patterns of said mobile devices associated to said first and second users and geo-temporal mobility patterns of the remaining mobile devices, belonging to the plurality of mobile devices and included in their call graphs for defining thereto a route between the first and second users;
• f. said backend server establishing the route between the first and second users and notifying said route to all mobile devices, belonging to the plurality of mobile devices, involved in said route.