Re: [hylafax-users] Received faxes resen

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

bill.allison@xxxxxxxxx wrote:

> Nov 04 11:56:34.73: [ 1247]: <-- [9:AT+FTH=3\r]
> Nov 04 11:56:42.28: [ 1247]: --> [0:]
> Nov 04 11:56:42.28: [ 1247]: RECV send MCF (message confirmation)
> Nov 04 11:56:42.28: [ 1247]: RECV FAX (000000281): from 01142326611, page   
> 1 in 0:24, INF, 3.85 line/mm, 2-D MMR, 14400 bit/s
> Nov 04 11:56:42.28: [ 1247]: RECV FAX (000000281): recvq/fax000000215.tif   
> from 01142326611, route to <unspecified>, 1 pages in 0:33
> Nov 04 11:56:42.28: [ 1247]: <-- [9:AT+FRH=3\r]
> Nov 04 11:56:42.43: [ 1247]: --> [8:AT+FRH=3]
>  

The modem reset itself.  USR modems do this.  See the message I just 
posted to someone else on-list.

> Nov 04 10:20:28.72: [ 1247]: RECV received frame number 24
> Nov 04 10:20:28.90: [ 1247]: HDLC frame not byte-oriented.  Trailing   
> byte: 0xfc
> Nov 04 10:20:29.08: [ 1247]: RECV received frame number 26
> Nov 04 10:20:29.08: [ 1247]: RECV frame FCS check failed
> Nov 04 10:20:29.29: [ 1247]: RECV assumed RCP frame with block end
> Nov 04 10:20:29.29: [ 1247]: --> [10:NO CARRIER]
> Nov 04 10:20:29.29: [ 1247]: <-- [9:AT+FRH=3\r]
> Nov 04 10:20:30.85: [ 1247]: --> [7:CONNECT]
> Nov 04 10:20:30.99: [ 1247]: --> [5:ERROR]
> Nov 04 10:20:30.99: [ 1247]: MODEM Command error
> Nov 04 10:20:30.99: [ 1247]: FCS error
> Nov 04 10:20:30.99: [ 1247]: <-- [9:AT+FRH=3\r]
> Nov 04 10:20:31.01: [ 1247]: --> [7:CONNECT]
> Nov 04 10:20:34.04: [ 1247]: --> [5:ERROR]

My guess is that the modem detected a carrier drop when there really 
wasn't one.  Because the sender was still in Phase C for another 10 
seconds or so it caused the repeated ERROR, ERROR.  The fault of failure 
here is really upon the USR for reporting CONNECT to AT+FRH=3 when the 
V.21 carrier was not present.  However, the catalyst was the poor 
connection with the sender.

Lee.


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