Symantec Winfax Pro alternatives



I’m searching for an alternative to Symantec Winfax Pro.
I think this software is simple orrible: a lot of problems.
I need send fax from different desktop on a local network. I have a Pc with Windows XP and the others clients with Windows 98. I want to install the fax server software on the Windows XP machine which has a 56k modem.
Do you have some software names to tell me?
Thank you