The functions
Using the handset in a number of systems
Querying the telephone ID
Menu System
Menu Telephone ID
Select menu IPEI or menu IPUI .
Confirm. IPUI:0000830daa , for example, appears in the display.
Press the left softkey for a long period to return to basic status.
Querying the software version
Menu System
Menu Software version
Confirm. 9.80 17.01.00/1.98 , for example, appears in the
display.
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Integral 33/55