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



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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