Section 12: GSM Operation
T
ieline
Page 92
T E C H N O L O G Y
12.5.1.1.
CSD Connections
For CSD connections select
GSM CSD
as the Wireless Network in the
wizard. Connect using the default settings which use the
Voice G3
algorithm to connect at a bit rate of
9,600
. Ensure the following settings
in the wizard are selected:
[GSM Wizard] > [Wireless Network
→
GSM CSD
←
] > [Algorithm
→
Voice
G3
←
] > [Pre-buffer Secs
→
0
←
] > [Sig Str Enable
→
Enable
←
] > [Auto
Reconnect
→
Disable
←
]
12.5.1.2.
HSCSD Connections
If you are connecting via an HSCSD connection (up to 15 kHz), the GSM
bit rate and codec algorithm need to be set to 28800bps and
Music
respectively. When you select an HSCSD connection during the
configuration process these settings become the default. To configure
HSCSD settings, go to the main codec menu by pressing
SOFTKEY 3
Wiz
. Ensure the following settings in the wizard are selected:
[Configuration] > [GSM Setup
→
GSM Module 1
←
] > [Wireless Network
→
GSM HSCSD
←
] > [Algorithm
→
Music
→
] > [GSM Bitrate
→
28800
←
]
> [Pre-Buffer Secs
→
0
←
] > [Sig Str Enable
→
Enable
←
] > [Auto
Reconnect
→
Disable
←
].
12.6.
Configuring GSM Connections via the RS 232 Serial Port
If you are connecting via the
RS232
port on the rear of the codec then you will
need to use the
RS232
connection on the rear of a codec and connect a GSM-
compatible cell-phone such as the
Nokia
®
6310 or 6310i. You will also require a
Nokia
®
(Type: DAN-1) null-modem DB9 male to DB9 male connector, between
the cell-phone and the codec RS232 port. You will also need to configure the
codec serial port for GSM use.
12.6.1.
Recommended Settings
To display a GSM serial port connection on the codec
LCD
and to configure
the
RS232
port for this connection, connect your phone to the
RS232
port
on the rear of the codec. Then press
SOFTKEY 4
Menu
, scroll to
[Configuration] > [Advanced Menu] > [Serial Port Mode] > [GSM]. This
configures the serial port and the GSM connection should appear on the
main menu screen as a connection option. If it doesn’t appear on the main
menu screen, power the codec down and then power it up and it should
appear.
The serial port mode can also be set in
Tool
Box
software via the
Serial Port
Mode
drop-down menu in the
Global Unit Settings
tab.