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UTC Time synchronisation:
UTC is the basis used for synchronizing via a time server. UTC stands for Coordina-
ted Universal Time and corresponds to the earlier designation GMT (Greenwich
Mean Time). The NTP (Network Time Protocol) is used for transmission. A public or
local NTP server can be used. The address or name of the NTP server and the time
difference with UTC is entered in AMS under CM_2.3.3.5. The NTP service can be ac-
tivated or deactivated.
Notes:
– If a name is entered for the NTP server the DNS settings (CM_2.2.1)
must also be configured.
– The ISDN time synchronization and NTP service must be activated
simultaneously.
Aastra Intelligent Net:
In an AIN there are additional configuration parameters for time synchro-
nization between the nodes.
The Master is always in area 1. This area is always assigned the Master
time. Time differences with other nodes can now be configured based on
the Master time.
Example: Master is in Switzerland; satellite is in Finland. The time diffe-
rence with UTC is: CH +01:00, FI +02:00.
Entry for the Master: Time zone shift : 00:00
Entry for the satellite: Time zone shift: +01:00
If the time is synchronized via an NTP server the parameter Time diffe-
rence with UTC (+/- hh:mm) must also be configured to +01.00 as the Mas-
ter time differs from UTC by 1 hour.
System configuration
Tab. 351 System time and system date: System configuration
Parameter
System time
system date
Time difference with UTC (+/- hh:mm) Yes
NTP service
NTP Server
ISDN time synchronisation
Master time
Time zone shift
Funciones y prestaciones del sistema a partir de R2.1
syd-0370/1.2 – R2.1 – 07.2012
Parameter value
Legend / Remarks /
<hh:mm:ss>
Invalid times are not accepted
<dd.mm.yyyy>
Possible data: 01.01.1980...31.12.2999
/
No
In an AIN depending on the Master's location
Yes
/
No
<Address or name> If name is entered, configure DNS settings
Yes
/
No
Usually assigned to only one region.
Yes
/
No
Information field. Always in the region 1 in which
the Master is also located.
<±hh:mm>
±12 hours in steps of 15 minutes
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