User guide

UNIX Computers 105
Making a Data Connection
Making Packet Data Connections
Packet data connections can be either
■ Packet (PPP) data only (example: browsing the Internet)
■ Asynchronous data with PPP data (example: dialing into a modem
behind a firewall, then accessing a corporate intranet)
To make a connection using PPP data
1. Make sure the Tri-Mode Phone is properly connected to your Linux
computer (as described in “Connecting UNIX Components” on page 89).
2. Power up your Tri-Mode Phone.
3. Rotate or fully extend the appropriate antenna for the type of
connection you wish to make (Globalstar satellite or cellular, as shown
on page 90) and make sure you have a Globalstar or cellular signal.
4. On the command line of your computer, type
usernetctl ppp0 up
and press
Enter.
The Tri-Mode Phone makes the data call. While the call is connecting,
the Tri-Mode Phone screen looks like this:
Note
When you make a cellular call, the Globalstar icon is
replaced with the digital icon . When you make an
asynchronous call, the screen reads “Async Data” and shows the
telephone number.
You are connected to the network when the Tri-Mode Phone screen
says “PPP @ 9.6.” The “PPP @ 9.6” indicates that the over-the-air data
rate is 9600 bps. (The “T R” status stands for Transmit and Receive.)
For an asynchronous connection, the screen says “Async @ 9.6.” When
the connection is made, the status is logged to the system log.
Note
For cellular calls the Tri-Mode Phone screen says “PPP @ 14.4,”
indicating an over-the-air rate of 14400 bps.
| menu |
Connecting..
PPP Data
#777
D
| menu |
Time: 0:12
PPP @ 9.6
Status: T R