Nera Saturn BT Technical Manual page 10

Saturn Bt Transportable Communication
Calls from Mobiles
To initiate a call, the user dials the international call prefix
00 prior to the telephone number for the required destina-
tion. The LES code is also included, either automatically
when using the default LES, or manually selected from the
Display Handset.
The mobile automatically includes information to identify
the MES and the particular end terminal that originates the
call. Saturn Bt has six connections: the Display Handset
and five connectors that are normally configured for stand-
ard telephone and a telefax.
The LES uses the end terminal identifying information (OI)
for billing purposes.
The mobile transmits the dialling information on a channel
specially assigned by the NCS, to the LES, which also has
been instructed to tune to the same channel.
On receiving the call, LES routes it over the public tele-
communications networks to the intended destination.
When the destination responds, for example by the dialled
subscriber lifting the handset, the call proceeds.
The illustration of the call initiation is simplified.
8
Transceiver
00 47 66 84 47 00 f
Service/
Connector
Originating Id
Phone/OI=1
HANDSET
TEL.1 Phone/OI=2
1 2 3
4 5 6
7 8 9
0 #
P S Re
Fax/OI=17
TEL.2
TEL.3 Default=no OI
Default=no OI
TEL.4
TEL.5 Default=no OI
MES Translation Table
Calls from Mobiles
When the MES originates a call it starts
by sending a request to the LES. This
initial request for service contains the
MES Return ID and type of service.
Saturn Bt incorporates a configuration
table for originating information,
accessible through the "Configure Ports"
function (70). This table contains one
entry for every physical connector with
the Originating Id and type of service for
that specific connector.
S y s t e m D e s c r i p t i o n S y s t e m D e s c r i p t i o n S y s t e m D e s c r i p t i o n
66 84 47 00
PSTN
LES=2
Forward/return ID OI Type Commissioned
123456/ABCDEF 1 Voice Yes
LES Translation Table
Saturn Bt Transportable – Technical Manual