BusinessPhone Communication Platform 7.0
Commands > Commands 1000...1999

## 1937
Prefix calling number for E.164 number plan with national type of number

Specifies prefix digits for national calls. The prefix is included as predigits to the received calling/connected party number from the ISDN network.

##### The complete number is used for

- displaying on system - , cordless - and IP phones
- caller list
- call logging of A-number

##### Valid data

data | remark
empty | default (up to R13)
0-4 digits | 0 ‑ 9, *, #
0 | default (since R14)

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