[Novalug] Speaking of house cleaning....
drwho at virtadpt.net
Mon Aug 29 14:04:49 EDT 2011
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On 08/26/2011 03:29 PM, Roy Wilson wrote:
> I need to sniff the phone line, and can't interrupt the data stream.
Hmmm... a bit of a challenge, but possible.
> The only way I can see to do it is to sniff the phone line itself.
That is entirely possible. You could drop a splitter in-line, or you
could expose the ring and tip wires of the line itself and patch another
modem in. Connect the sniffing modem to another computer. Then you'd
start up a terminal emulator, configure the modem appropriately,
initialize the modem ('ATZ' used to work for me) and use the AT-command
'ATA' to take the modem off-hook to get a copy of the traffic.
> I have a banjo I can drop in-line, but short of recording a session
> I don't see how I can sniff the data itself offhand. I *used* to do
> it for 300-1200bps lines fairly frequently, but I wasn't using a PC
> back then.
I used to do it on one of my Ataris with the SX212 modem (which had both
RS-232 and Atari-proprietary serial jacks that operated simultaneously).
It also used to work pretty well on a PC up to 2400 bps (because that's
what my modem used to top out at).
The Doctor [412/724/301/703]
PGP: 0x807B17C1 / 7960 1CDC 85C9 0B63 8D9F DD89 3BD8 FF2B 807B 17C1
"Chi fire burns... chi fire burns..." --Kyrin
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