Anonymous messaging using mobile telephones

Procedure that allows users (4a, 4b) of mobile phones (5, 6) exchange messages anonymously using simple commands that do not require use of keywords; said method comprising the following steps: - stage I to send to a recipient user (4b) a text message or audio produced by a sender user (4a), - Stage II user response transmitter (4a) directing one response message prepared by the addressee user (4b); Stage I to send to a recipient user (4b) a message prepared by a sender user (4a) comprises the following steps: - the step of storing in a database (2) of a server-router (1) pseudonyms designating the users (4a, 4b) as well as the telephone addresses of the mobile telephones (5, 6) of said users (4a, 4b), - the step of inserting, through the mobile phone (5) of the sender user (4a ), the pseudonym of the recipient user (4b) in a message-text associated with the message. - The step of transmitting, by said mobile phone (5) of the sender user (4a), said message-text to the server-router (1) as well as the message, - the step, for said server-router ( 1), to detect in the message-text the presence of an alias and searching said database (2) the telephone address of the mobile phone (6) of the recipient user (4b), - the step, for said server- router (1), to route the message to said mobile phone (6) of the recipient user (4b).