Datumformat bei 7960 ändern

[tylon]

hallo
ich benutze ein 7960 mit sip P0S3-07-4-00

in der DIPdefault hab ich unter anderem folgendes:

# Time Server (There are multiple values and configurations refer to Admin Guide for Specifics)
date_format: D.M.Y		; Datumsdarstellung (M/D/Y (STANDARD), D/M/Y, Y/M/D, Y/D/M) 
sntp_server: "ntp.sipgate.net"	; SNTP Server IP Address
sntp_mode: unicast		; unicast, multicast, anycast, or directedbroadcast (default)
time_zone: CET			; Time Zone Phone is in
dst_offset: 1			; Offset from Phone's time when DST is in effect 
dst_start_month: April		; Month in which DST starts
dst_start_day: ""		; Day of month in which DST starts
dst_start_day_of_week: Mon	; Day of week in which DST starts
dst_start_week_of_month: 1	; Week of month in which DST starts
dst_start_time: 02		; Time of day in which DST starts
dst_stop_month: Oct		; Month in which DST stops
dst_stop_day: ""		; Day of month in which DST stops
dst_stop_day_of_week: Sunday	; Day of week in which DST stops
dst_stop_week_of_month: 8	; Week of month in which DST stops 8=last week of month
dst_stop_time: 2		; Time of day in which DST stops
dst_auto_adjust: 1		; Enable(1-Default)/Disable(0) DST automatic adjustment
time_format_24hr: 1		; Enable(1 - 24Hr Default)/Disable(0 - 12Hr)

den eintrag

date_format: D.M.Y		; Datumsdarstellung (M/D/Y (STANDARD), D/M/Y, Y/M/D, Y/D/M)

hab ich selber reinkopiert und geändert
mit D/M/Y klappt es auch. aber kann ich nicht statt "/" ein "." machen?

gruß rené