It appears that a FAX machine wants to be first in line when using the two devices in Subject. Is there some way of changing that? Our devices are in two different rooms, and it would be difficult to put the FAX first.
This is a classic problem I've seen before. You need is to add the distinctive ring feature to your phone service. Most modern fax machines will have a setting for this function.
I have seen distinctive ring on a few answering machines though such is less common.
i suppose you can try a splitter at the fone line and run separate lines to each machine from there. I presume u will want the answering machine to pick up after several more rings than the setting for the fax.
FAX machines answer the call and attempt to detect the negotiation tone. If the tone is detected, the FAX activates.
If the tone is not detected, the output telephone jack on the FAX machine gets the line, sans ring voltage. An answering machine connected there will not seize the line because of the lack of ring voltage.
You need either a separate FAX number / line or the distinctive ring feature. A FAX machine with this feature will look for a ring cadence before answering the line. Having distinctive ring will allow you to leave the house wired in a loop as they typically are rather than creating a home run to the FAX machine first.
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