Communications
Confidential 3 COM MD CC GRM T
J. Junggebauer
Version 1.0 July 2005
2 Procedures
Since the C350/ 355 is a C340/ C345 in a PTT design housing, all procedures
are identical.
Hidden service procedures for the handset and base stations.
Note: The service procedures are confidential.
2.1 Service procedures for the handset
Read out IPUI of the handset (for identification purposes): menu-key, *, #, 0, 6, #
SW-version: Read out SW-version and IPUI (international portable user identity) of
handset. IPUI is a unique number (like IMEI) that could be used for identification.
Speechpath-test: Switches a direct loop between microphone and loudspeaker.
This enables a check of the speechpath by blowing in the microphone.
Metering mode:
Press o.k. to activate an information line during normal operation
mode and leave the service menu afterwards.
Example: 100 - 0 - 02 - 016 - 100
RX-level - Frequency - Time slot - Base code - Bit error rate (100 = 100% o.k.)
Measure time: Changes the measure time of the metering mode (change is not
necessary).
Working time:
Read out the time for which the handset has been switched on.
Example: 15d, 10h means handset has been switched on for 15 days and 10 hours.
The counter's max. value is 65535 hours or 2730 days. It can only be reset at WSC.
Contrast:
Changes the contrast of the display.
Press 1, 4 and 7 simultaneously and keep keys pressed
Switch on and keep key pressed until "SERVICE" is visible, then release
all keys
This code performs a fundamental reset on
the handset. All settings are reset to factory
defaults. Handset is still registered to base.
Service-menu is displayed with following items:
SW-version, QS-data, Speechpath test, Battery
mode, DSP-parameters, Metering mode,
Measure time, Working time, Contrast, SAR.
Red items are only for Development Department
or Quality Assurance and not explained here!
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