flexfax: Remote hangup:7:+FHS:11

[M Parcheur <parcheur@iname.com>]

Hello,
I used Hylafax for the first time and sent successfully 5 faxes to 5
different recipients. But I could not (and I tried and tried again) send
a fax to a particuliar fax number. The log shows the lines:
.........
DIAL xxxxxxxxxxxxxxxx


21:ATDTxxxxxxxxxxxxx
7:+FHS:11
................
In order to check the fax number, I used, with success, a standard
faxmachine. I suppose it's a matter of settings. What's to be done ?
Many thanks for any help.
parcheur@iname.com