Another solution would be with E&M tieline card as E&M will pass the digits like DID, then if you use a Exacom E&M 200s&f device that will interface between the telrad E&M card and the faxserver, the E&M 200s&f converts E&M signals to a single line device, when the Telrad forwards a call to one of the E&M ports the 200s&f (store & forward) collects the digits, rings the single line device, waits for "carrier" then repeats the digits to the single line device for routing purposes. I have a spare Exacom 4 port unit if interested.
Another way would be via T-1, if you had a Brooktrout T-1 modem card then you could forward the calls to it and the T-1 would repeat the digits, this would be similar to networking 2 Telrad digital sysytms together, with the called station residing at the remote system, so the main system would forward the digits so the remote system would know which extension the call was for, in your case it would be a fax mailbox. I also have a brooktrout T-1 modem with 4 ports as I recall and a piggyback 8 modem card, both are ISA, not PCI. I had purchased these for the same application and never got any software to use them, I would make you a good deal on them as a result.
Bruce (217) 324-7655
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