Re: [hylafax-users] Failed to properly detect high-speed data carrier

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

On 2004.10.20 01:19 santillan@xxxxxxxxx wrote:

> Oct 19 16:36:23.31: [19275]: RECV received frame number 6
> Oct 19 16:36:23.31: [19275]: RECV received RCP frame
> Oct 19 16:36:23.50: [19275]: --> [10:NO CARRIER]
> Oct 19 16:36:23.50: [19275]: <-- [9:AT+FRH=3\r]
> Oct 19 16:36:23.88: [19275]: --> [7:CONNECT]
> Oct 19 16:36:24.91: [19275]: --> [2:OK]
> Oct 19 16:36:24.91: [19275]: RECV recv PPS (partial page signal)
> Oct 19 16:36:24.91: [19275]: RECV recv MPS (more pages, same document)
> Oct 19 16:36:24.91: [19275]: RECV received 7 frames of block 1 of 
> page 4
> Oct 19 16:36:24.91: [19275]: <-- [9:AT+FRS=7\r]
> Oct 19 16:36:25.02: [19275]: --> [2:OK]
> Oct 19 16:36:25.03: [19275]: <-- [9:AT+FTH=3\r]
> Oct 19 16:36:28.02: [19275]: --> [0:]

Here's the error.  See that the modem did not respond with a CONNECT 
message after AT+FTH=3 ?  That indicates a problem of some kind, and, 
as we can see below, it occurred because the modem was in the middle of 
a reset.

> Oct 19 16:36:28.02: [19275]: RECV send PPR (partial page request)
> Oct 19 16:36:28.02: [19275]: <-- [10:AT+FRM=72\r]
> Oct 19 16:36:28.27: [19275]: --> [9:AT+FRM=72]

Notice here that we have echo turned on.  However, HylaFAX disables 
echo before every fax, so we know that the modem was reset.

> Oct 19 16:36:28.27: [19275]: RECV keeping unconfirmed page
> Oct 19 16:36:28.30: [19275]: RECV: 1792 bytes of data, 16 total lines
> Oct 19 16:36:28.31: [19275]: RECV FAX (000001024): from 81454765271, 
> page 4 in 0:12, INF, 200 x 100 dpi, 2-D MMR, 7200 bit/s
> Oct 19 16:36:28.36: [19275]: RECV FAX (000001024): 
> recvq/fax000000293.tif from 81454765271, route to <unspecified>, 4 
> pages in 1:00
> Oct 19 16:36:28.38: [19275]: RECV FAX: Failed to properly detect 
> high-speed data carrier.
> Oct 19 16:36:28.38: [19275]: <-- [9:AT+FTH=3\r]
> Oct 19 16:36:28.38: [19275]: --> [5:ERROR]

And the error message here tells us that we're on-hook, which confirms 
that the modem did reset.

My guess is that there is a bug in the USR firmware associated with 
AT+FRS commands.  You could try disabling +FRS and +FTS.  Look at the 
Topic config file (config/topic) on how to do this.

Lee.

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