flexfax: too much delay between TCF and +FDR?

[Darrell Berry <darrellb@hhcl.com>]

any idea what this means? can't find it in the FAQ, and we are seeing
this a LOT! (USR Sportster)

thnx

Feb 18 11:59:34.56: [  333]: --> [5:ERROR]
Feb 18 11:59:34.56: [  333]: MODEM Command error
Feb 18 11:59:34.56: [  333]: REMOTE HANGUP: Unspecified Phase C error,
including too much delay between TCF
and +FDR command (code 90)
Feb 18 11:59:34.56: [  333]: RECV FAX (00000547): recvq/fax00080.tif
from 0171 287 2150, route to
<unspecified>, 0 pages in 0:15
Feb 18 11:59:34.56: [  333]: RECV FAX: Unspecified Phase C error,
including too much delay between TCF and
+FDR command
Feb 18 11:59:34.56: [  333]: <-- [7:AT+FKS\r]
Feb 18 11:59:34.67: [  333]: --> [5:ERROR]
Feb 18 11:59:34.67: [  333]: MODEM Command error
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