First thanks for the help Second I am not going to start implementing a FAX solution until I get 5.3 and even then it will take me some time since this is volunteer work and I have to find time. I will probably get to it in mid-May.
I will first try hylafax with T38modem. If that fails try with IAXmodem and in turn if that fails then with a Cisco PAP2T. I will report on my success or failure.