flexfax: at+frh=3

[Ahmed Riza <ahmed@cfdmaster.demon.co.uk>]

A fax machine is trying to connect to hylafax and failing with the following
log messages:

Aug 24 12:29:26.85: [ 1313]: DELAY 1500 ms
Aug 24 12:29:28.35: [ 1313]: <-- [9:AT+FTH=3\r]
Aug 24 12:29:28.37: [ 1313]: --> [7:CONNECT]
Aug 24 12:29:28.37: [ 1313]: <-- data [23]
Aug 24 12:29:28.37: [ 1313]: <-- data [2]
Aug 24 12:29:28.38: [ 1313]: --> [7:CONNECT]
Aug 24 12:29:28.39: [ 1313]: <-- data [10]
Aug 24 12:29:28.39: [ 1313]: <-- data [2]
Aug 24 12:29:30.46: [ 1313]: --> [2:OK]
Aug 24 12:29:30.46: [ 1313]: <-- [9:AT+FRH=3\r]
Aug 24 12:29:33.56: [ 1313]: --> [0:]
Aug 24 12:29:33.56: [ 1313]: MODEM <Empty line>
Aug 24 12:29:33.56: [ 1313]: <-- data [1]
Aug 24 12:29:33.56: [ 1313]: --> [2:OK]
Aug 24 12:29:33.56: [ 1313]: RECV FAX: No answer (T.30 T1 timeout)
Aug 24 12:29:33.58: [ 1313]: RECV FAX: end
Aug 24 12:29:33.58: [ 1313]: SESSION END

Could someone please explain what AT+FRH=3 is supposed to do?  Any ideas on
how to resolve this problem will be greatly appreciated.

Ahmed Riza <> ahmed@cfdmaster.demon.co.uk