Yes, there is an answering machine on the same line.
It is set up to answer phone after 4 rings.
My understanding is that regardless of type of answer,
pick up or answer machine, the fax should not
start unless it picks up a fax signal.
The signal should be received before fax responds.
It seems to me that the fax responds immediately
when the phone is answered.
It seems to me like it is responding as a fax only line.
But the fax is set up in TEL priority mode.
I am perplexed.
Had ATT provide DRPD service. They provided double ring and fax
Cost is $7/mo.
That corrected my trouble.
I thought that I could use fax with Tel priority mode
on same line as voice and answer machine,
with no additional ATT charge or tele no.
Guess I was wrong.
Thanks for your help.