SB>> Can anyone tell me whether it is neccessary to enable 
SB>> retraining at both ends of a link to actually enable it, or 
SB>> just one end?

BG>> As BOTH modems must agree to a retrain, the answer should 
BG>> be obvious.

Not really.
 
SB> So I take that as a sarcastic yes? :) Sorry, it wasnt 
SB> obvious to me, I could envisage a number of different 
SB> possibilities, all of which could have been implemented 
SB> depending on the choice of whoever designed V34 etc...

 DD> In order for two people to communicate using sign-
 DD> language, is it necessary for both people to 
 DD> understand sign-language, or just one?
 
Sure,  but this still doesn't answer his question.
 
In my m34f at least disabling retraining or speed shifting will not
resultin them being rejected if requested by the remote modem.  I'm
connected to a Courier now,  it's happily retraining and speed shifting
over the noisy line.  If I enable the retrain/rate change with %E1/2 then
my modem will start sending requests to the Courier to retrain or shift, as
well   as receiving requests from the Courier.
 
I usually leave it on %E1,  retrain,  since the Courier can do all the
speed shifting.  Having %E2 is pointless when connected to the Courier as
it won't upshift past what it thinks is best even if requested.
 
Ludi.
ludi{at}triode.net.au

--- Maximus 3.01