*#0000# : Reset the phones menu-language to natural language, set initially by the distributor.
*#06# : Checking the IMEI (International Mobile Equipment Identity)
Just enter 0# and you'll get the maximum number of SIM names.

• Hold * then 5806 - Show software version
• Hold * then 5807 - a little bit different
• Hold * then 5472 - Testmode for data-cable (it seems so)
• Hold * then 4329 - Activate and deactivate NETMONITOR
• Hold * then 621342 - Activate and deactivate another NETMONITOR
• Hold * then 3926 - Shutdown

Try to enter a number between 0 and 100 with a #

For example #1 and you'll get one of the entries in your phone book. But it's a strange system because #1 is not the same like the "number one entry" of your phone book !

Service Provider (SP Lock)

You can turn around the lock routin by entering **04*PIN*PIN*PIN# now the secret code change was applied and the software turns back to main menue. It works not on all Triums, only on those with older software versions.