TIP: Click on subject to list as thread! ANSI
echo: aust_modem
to: Arthur Marsh
from: Tony Molina
date: 1996-03-12 14:50:52
subject: 28.8k on Telstra line

G'day Arthur,

Once upon a time, Arthur Marsh spoke thus to Tony Molina:

 TM> What is happening is that modem speeds up to 14.4k work 
 TM> fine, but going the next step to 28.8k is no good. I get 
 TM> good reliable 28.8k connects (V42/LAPM) but then there 
 TM> are pauses of varying lengths between screen displays 
 TM> from the remote modem. The pauses get worse and worse 
 TM> and usually, within 2 or so minutes it hangs up, 
 TM> "click". NO CARRIER.

 AM> Can you try forcing V.34 at a lower speed e.g. 14400 bps?

Hmmm, does this mean that V.34 14400 bps is different to V.32bis
14400 bps?

I will try it though.

 AM> Some modems have retraining disabled by default (not a good idea), and
 AM> therefore V.32bis 14400 bps may work fine and V.34 with initial
 AM> connect at 28800 bps and retrains disabled may mean that (eventually)
 AM> the link disconnects. 
 AM> Are retrains enabled at both ends of the link?

I've emailed the sysop of Melb PC User BBS twice but have not
recieved a reply yet. I hope he knows what "retraining" means
:-)



adios

= tony =


  ,-._|\   
 /  Oz  \  Melbourne, AUSTRALIA
 \_,--.x/  Internet: tonym{at}melbpc.org.au
       v


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