TN3270 (English version)

For several years I have had the opportunity to work directly with the 3270 Telnet communication protocol in order to access to mainframe programs, so now I have decided to use this experience to make an application for android mobile operating system.

First of all you should consider having connection to the server, the alternatives are:

• VPN connection,
  
• Connect to a wireless network which already have access to your network and bypass the firewalls.

Keep in mind that especially the first time, you must have internet access just to verify the google server market requirements with the license, perhaps on another occasion may require this validation, but this again depends on the google licensing scheme.

Then you must select the ON button (I chose this name instead of CONNECT to minimize space, especially because of the phones with have small screens).

The following picture shows the connection window, the parameters which are basically the hostname or ip address and port.

After entering these values, we can start with the navigation on our server, you should touch only the gray text sections and then enter text in the field.

The use of special keys is through the selection of the key (enter, clear, f1, f2, etc) and then the SEND button.

Additionally I have implemented zoom buttons to adjust the text according to screen size of your phone.

This is the first release, I hope soon to add new functionality.