[CentOS] USB or PCI dialup modem supported by Centos

> That's a slow V.92 modem. The HSDPA modems will go up to 7.2 Mbps.
> Broadband and Wireless.   :-)

It will work for me, i use the V.92 modems  to get a serial console on
the remote firewalls when the internet link (ADSL) is down and check
what happened.

Best.