For 56 Kb modem (basic telephone network) or less. Instead of 6 Kb / s downstream and 2 Kb / s upload, it change the limit to 6 kb /s down by 1 KB /s upload (removes the Ratio Limit restrictions 1:3). This is for speed connections that are the lowering and rising by the same thread as the PSTN. It makes no sense to put the crack in another type of Internet connections that are faster than 56Kb modem, such as ADSL, cable, etc.. Because there are multiple threads for others to download and upload. By apply the crack, download will not gained. In addition to upload less, earn less credits and send you less. ---------- Para modem de 56 Kb por RTB (red telefónica básica) o inferiores. En vez de 6 Kb/s de bajada y 2 Kb/s de subida, se pone a 6 de bajada y 1 de subida. Se gana 1 Kb/s de bajada, al liberar 1 de subida. Esto sirve para las conexiones que tienen la bajada y subida por el mismo hilo como la RTB. No tiene sentido poner este crack en otro tipo de conexiones a internet q...