Making a Modem Connection
To make a modem connection, you need to connect a modem to the Trizeps-module. This can be done by connecting it to one of the Trizeps-COM-ports or through one of the other interfaces i.e. USB.
Preparation
If the interface creates a COM-port, to which you can send AT-modem-commands, you should insure, that the following keys are added to the driver registry-key:
"FriendlyName"="My Modem"
"Tsp"="Unimodem.dll"
"DeviceType"=dword:2
"DevConfig"=hex:10,00,00,00,05,00,00,00,00,
01,00,00,00,4B,00,00,00,00,
08,00,00,00,00,00,00
FriendlyNamy: Name that is shown in the Make New Connection
-wizard.
Tsp: telephone-service-provider. Set to unimodem.dll. Unimodem handles access to most standard modems. You can also create a customized TSP, but normally this should not be necessary.
DeviceType: see <_WINCEROOT>\public\commonc\oak\inc\unimodem.dll for definitions. (ie. 1=external modem, 2=internal modem, 3=pcmcia modem, 0=Null-modem is only used for direct connections (ActiveSync)).
DevConfig: indicates the serial device capabilities (baud, parity, and so on).
Make New Connection
If your modem is set up and you're able to get a OK
respond from an AT
-query, you are ready to make a new connection using the connection-wizzard of Windows Embedded CE.
Start → Settings → Network and Dial-up Connections
.Press
Make New Connection
.Name your connection and select
Dial-Up Connection
.Press
Next
.Now choose the modem. If your modem does not appear here, check wether the keys at Preparation exist and if you selected the correct DeviceType.
Select
Configure..
and enter theCall Options
-tab. In theExtra Settings
add a call string:+CGDCONT=1,"IP","APN_NAME"
APN (Access-Point-Name) is provided by your internet or SIM-card-provider. i.e. if you would use O2 this would be
+CGDCONT=1,"IP","surfo2"
Press
Next
.In the
Phone Number
-field enter *99# or *99***1# (depends on your provider).Leave the other fields untouched and press
Finish
.
Now you're done and could double-click the new connection. If it is a GPRS-modem and uses a SIM-card, it might be needed to enter the PIN before a connection can be made. i.e. on a HC25-modem you would open the COM-port and send
, where 1234 is your PIN-number.