Suse maybe provide tools for easy configuration (like kppp) but I am not a Suse expert and not fan of such tools.
So to configure your connection, you need to know provider DNS IP (to add in /etc/resolv.conf). You need to have pppd and PPP support compile in kernel. And also either chat or wvdial (to tell your modem which number to call).
pppd config files are located in /etc/ppp/ you need to configure options and to create peers/provider (maybe also another one for CHAP or PAP authentication).
wvdial can be configured with wvdialconf command.
Once everything is configured, run: pppd call provider
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