Fax Configuration in Elastix 2.4 and Elastix 3.0

We have a couple of SIP Trunks that we need to properly configure for multiple faxes in two Asterix distros: Elastix 2.4 and Elastix 3.0. In Elastix 2.4 we used to have one working fax, now after we tried to setup the second fax both extensions are not working. In another virtual machine with Elastix 3.0 we want to configure the same sip trunks for the same faxes. Project will be considered succesfull when the we will be able to do the following list from both distros. 1. Receiving fax in e-mail. 2. Send fax with HylaFax and through web interface. 3. Configure minimum 2-3 diferrent accounts. I am an senior server and network admin with very basic asterix pbx / elastix. We will work toghether to ensure a speedy resolve. To someone with experience in asterix pbx / elastix this entire project should not take more than 1-2 hours.