A little experimenting

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 Hello all,

 Here's the situation: when faxing from a regular fax machine to another 
 regular fax machine (nearly the same modems, both Panasonic), if during the
 fax transmission I pull the telephone connector out and the plug in again
 (with minimal delay, say 0.5 sec), in the received fax I can clearly see
 those time intervals when the connector was out, the page simply misses
 those lines, but the page as a whole is there.
 When trying the same fax machine as the sender, and a modem with mgetty on the
 receiving side (E-Tech external 33.6 with AT&T chipset) if I just repeat the
 experiment I described earlier, the modem or mgetty stops reception of the
 page. The fax file ends at the time I pull the connector out, but after
 plugging in again I can clearly hear the incoming fax data, so the telephone
 connection is alive! 
 The reason why I'm doing this is that there is a strange problem I couldn't 
 locate yet that produces nearly the same effects (the reception ends during 
 transmission
 but the incoming fax data can be heared after that, I suspect that there's a
 problem in the telephone network or in a switching equipment, but it needs
 more testing).
 So my question is, how it can be done, that the modem, mgetty behave exactly 
 the same as the fax machine (not to stop the reception, but to skip those lines
 that were sent when the connector was out)

 Thanks,

 	Christo


PS. Here's a log of such a situation:

05/28 13:31:10 yS1 fax_wait_for(CONNECT)
05/28 13:31:13 yS1 transmission par.: '+FDCS:0,3,0,2,0,0,0,0'** found **
05/28 13:31:15 yS1 fax_get_page_data: receiving /var/spool/fax/incoming/fn38c17
75S1.01...
05/28 13:31:20 yS1 fax_get_page_data: page end, bytes received: 6398
								^^^^^
							only 6398 bytes were
							received correctly
05/28 13:31:21 yS1 fax_wait_for(OK)
05/28 13:31:21 yS1 page status: +FPTS:1
05/28 13:31:31 yS1 connection hangup: '+FHNG:100'** found **
05/28 13:31:31 yS1 fax_notify_mail: mailer exit status: 32256

05/28 13:31:31 ##### fax dev=ttyS1, pid=555, caller=none, name='', id='"
   "', +FHNG=100, pages=1, time=00:00:30



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