Using an USB ISDN Terminal Adapter

Support knowledgebase (drahn_usb_ta)
Applies to

SuSE Linux: Versions since 7.0

Request:

You want to use a USB ISDN terminal adapter with SuSE Linux.

Procedure:

The following BIOS options have to be set: The variable "START_USB" in the file /etc/rc.config must be set to "yes". Easiest way to change this value is to use YaST1:
   -> System administration
   -> Change configuration file
After a system restart the following modules should have been loaded: You can check this with the command lsmod as superuser root.

Now configure your ISDN modem with YaST1. Therefore open the following dialogue:

   -> System administration
   -> Network configuration
   -> Configure PPP network
Now you are in the Wvdial configuration menu. Please select "Autodetect modem". Now your modem should be detected. A standard analog modem would have been configured correctly at this stage and only the provider has to be specified yet under "Configure the current profile" or you choose one of the preconfigured call-by-call provider.

But ISDN modems (also called terminal adapters) don't act like analog modems and they need a special initialization string. This has to be set with

   -> Configure the current profile
   -> Expert menu
Select "(Standard-Analog-Modem/non-ISDN) Modem Type" for your terminal adapter. If you don't find an entry for your device, you must search at your terminal adapter manual for an AT command, that switches on the point-to-point-transfer mode. Mostly it can be found with the keyword "syncPPP". Type in this init string as "Init String 2 (sent to modem after first)".
Keywords: ISDN, USB, ISDNTERMINALADAPTER, TERMINALADAPTER

SDB-drahn_usb_ta, Copyright SuSE Linux AG, Nürnberg, Germany - Version: 03. Jan 2001
SuSE Linux AG - Last generated: 26. Mär 2002 by swiegra (sdb_gen 1.40.0)