We are currently using RightFax; besides that, some offices have a local fax for SRST purposes. Since they have local PRI everything works fine.
My problem is in the branches where there is only analog lines. I need to move the line as well as the fax into the router. This way, rightfax will be the main source for faxing but when connection is lost, the router can take care of the fax in SRST mode.
I understand that I need FXO (for the phone line) and FXS (for the fax) but this is a huge investment. Is there any two port card that can handle both?