cannot detect isa usr modem

I have a US Robotics ISA modem that I tested in a Suse 8.0 machine, it works fine. when I install it in an 8.2 machine, yast2 does not detect it. when I run: echo "ATDT4572622" >/dev/modem it seizes the phone line, gets dial tone, does not dial, then disconnects after about 2 seconds. This leads me to believe that the device/com port setting is correct. My object is to use this machine on the internet, but I cannot connect. thoughts? -- John Sowden American Sentry Systems. Inc. 1221 Andersen Drive San Rafael, CA 94901 U.L. Listed Central Station Alarm Service Serving the San Francisco Bay Area Since 1967 mail@americansentry.net http://www.americansentry.net