162 RUFUM - Direct Inward Dialing Number Conversion

Combination codes for FAX, DTE (DPLN, DAR=FAXNO, DTENO for data exchange analog, and DTEDNO for data exchange digital via DIU-CAS)
These are entered in the the dial plan (DPLN, AMO
WABE) if the service code plus station number in system internally amount to more than 6 digits and the station is to be available externally via an exchange, since external call numbers are limited to call numbers with a maximum of 6 digits. Conversion is always necessary in this case.