Nokia Net Monitor description (DCT3)

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How do I activate Net Monitor?

The Net Monitor menu is best enabled by connecting the phone to a PC using a data-cable or the phone’s infra-red port (if supported) with software such as OPM and LogoManager for Windows. Or gnokii and gammu for *NIX systems.

Net Monitor activation in LogoManager

Field Test or Engineering?

Net Monitor comes in two varieties – Engineering or Field Test mode (OPM can activate only Engineering). Engineering mode offers the full functions of Net Monitor, whereas Field Test offers a cut down version of the tests generally network specific. Engineering mode includes all of the Field Test modes. You may wish to read up on individual tests to see whether you want to have the Engineering tests or not. Note it is possible to downgrade from Engineering to Field Test on the handset, but to regain the test offered by Engineering you need to use software.

Checking to see if Net Monitor is enabled

Once Net Monitor is enabled a new menu item should be present in the phone’s main menu, after all of the normal menu items, that looks similar to these (varies depending on phone model – this is from my Nokia 6210 and Nokia 9210i):

How do I use Net Monitor?

Net Monitor consists of a series of tests. A test simply displays information on the home screen; sometimes this information can be changed. To get into Net Monitor, you choose the Net Monitor icon in the main menu, and a prompt will appear to enter a test number:

Will the phone function normally with Net Monitor displayed?

Yes the phone will continue to function normally if Net Monitor is displaying information (i.e. you haven’t changed anything yet). However, you won’t be able to see cell broadcast information on the home screen, and on some phones you won’t be able to see the caller information when you receive a phone call.

Jumping directly to tests

A couple of things to note about test numbers. Firstly, not all are valid tests, and entering the number of an invalid test will appear to do nothing, but may cause problems (in 3xxx phones) – see "Invalid Tests”

Another very important thing to note is that by jumping directly to valid tests, some tests interpret this as an action to perform a function for that test. These tests are active tests. For example, jumping straight to test 18 will toggle the state of the phone’s keypad and LCD lights. While this is fairly harmless, other tests may alter values in the phone to make it unusable.

If you concerned about this, then it may be best to always jump to a test that is known to be a passive (non-active) test, and then scrolling to the active test from there with the scroll keys. Tests are detailed individually later in this document, and it is noted whether they are active or passive tests.

Invalid Tests

If you enter the number of an invalid test and Net Monitor is not currently being used (i.e. the home screen is normal), it will appear that nothing will happen, however if you check carefully the function the scroll keys normally perform at the home screen will no longer happen (i.e. on some phones you cannot enter the phonebook by pressing up/down or the recently dialed list). To correct this, go back to Net Monitor and select the test 00.

If you enter the number of an invalid test whilst Net Monitor is displaying data, the display will simply show “NO TEST” and return to the last displayed screen.

Viewing Net Monitor information with software

It is possible to observe the Net Monitor tests using software (e.g. LogoManager), this is useful as you can only view information and not change any settings, also some software can summarize this information, which is especially useful if you are moving and wish to take snapshots of the network conditions.

LogoManager can display the outputs of all the tests. You need to simply establish a connection with the phone, and select Tools -> Network Monitor. You must have enabled Net Monitor on the phone. Then simply choose the test from the list of tests and it will be displayed in the Monitor Output area. Note you can view the full range of tests regardless of having Engineering or Field Test variants of Net Monitor enabled.

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