Re: [hylafax-users] USR 5601 98F7 giving error: T.30 T2 timeout, expected page not received

[marthter <marthter@xxxxxxxx>]

Lee Howard wrote  on 20/12/04 04:18 PM:

> On 2004.12.20 12:40 marthter wrote:
>
> > Linux (RedHat 9)
> > HylaFAX 4.2.0 from rpm (hylafax-4.2.0-1rh9)
>
>
> > USR internal 56K modem on ttyS4 (this is receive only and has the 
> > problem):
> > ati0: 5601
> > ati1: 98F7
> > ati2: OK
> > ati3: U.S. Robotics 56K FAX INT Rev. 5.22.16
>
>
> > Dec 20 13:56:08.78: [18839]: <-- [11:AT+FRM=146\r]
> > Dec 20 13:56:10.04: [18839]: --> [7:CONNECT]
> > Dec 20 13:56:10.04: [18839]: RECV: begin page
> > Dec 20 13:56:12.34: [18839]: RECV/CQ: Bad 1D pixel count, row 120, 
> > got 2087, expected 1728
> > Dec 20 13:56:12.34: [18839]: RECV/CQ: Adjusting for trailing noise (1 
> > run)
> > Dec 20 13:56:12.34: [18839]: RECV: 120 total lines, 0 bad lines, 0 
> > consecutive bad lines
> > Dec 20 13:56:12.34: [18839]: RECV: end page
> > Dec 20 13:56:12.34: [18839]: --> [10:NO CARRIER]
> > Dec 20 13:56:12.34: [18839]: <-- [9:AT+FRH=3\r]
> > Dec 20 13:56:16.21: [18839]: --> [7:CONNECT]
> > Dec 20 13:56:16.21: [18839]: --> [19:59 CD 45 15 3B 88 A5 D1 44 28 40 
> > 87 9D 3A CF CB 1C 10 03]
> > Dec 20 13:56:16.21: [18839]: --> [5:ERROR]
>
>
> The modem is detecting a carrier drop when there isn't one and then is 
> accepting V.17 data with the V.21 setting.
>
> 120 lines would be a very short page at 3.85 l/mm (1.2 inches).  The 
> data that is received that produces the ERRORs after that is still 
> image data.

Yes, the partial tiff that was delivered was only a small fraction of a 
page.  Other attempts got further (several pages) as I said.

> So the modem is detecting a carrier drop when it shouldn't be.  Most 
> likely this is the fault of the modem, but it could be that there 
> really was some event on the line that caused a temporary carrier 
> drop.  The modem shouldn't be reading in image data with the V.21 
> setting, but I'm not a modulator guru, and maybe this is unavoidable.

Well there are other phones on that line and it is possible someone 
picked one up, but that wouldn't be it 9 times in a row.

> When I encounter any error and a USR modem is involved I always, 
> always blame the modem first unless I have good evidence otherwise.
>
> Lee.

Hmm, yeah, but "it was working before" (tm) and "the setup has not 
changed" (tm).

So you would not expect the latest CVS to make any difference?

Thank you for your reply.

Martin




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