Rod Speed was raving on in AUST_MODEM about USR trial string:
PL>> Try adding this to either your init or dial string or 
PL>> whatever as long as it doesn't get overwritten before 
PL>> dialing: S39=9 S56=2
PC>> ~~~  ^^^^^
PC>> What does the S39 reg do
PL>> Sets the signal level.

SL>> What's this about a trial string for the Courier?

PL>> It increases the transmit level to -11dB. Works well for
PL>> another USR, doesn't do any harm for non-USRs, so it's 
PL>> staying.

SL>> I've put the two S-register settings into my init
SL>> string and can't really notice any difference. They
SL>> haven't screwed things up so I've kept them in my config.

 > Thats probably not a terrific idea if they dont help. V34 is 
 > MEANT to be able to intelligently adjust the Tx level when 
 > appropriate and its not really a very good idea to disable that 
 > if it doesnt help.

From what's been said here about the transmit level registers, it seems
that it only improves the level between two USR's and not other modems. So
a V34 connect will automatically adjust itself but a V34+ connect can be
tweaked by us. Simple really.

Tom Bulum
e-mail: tom.bulum{at}accc.gov.au  or  tomb{at}pcug.org.au
netmail: 3:620/250.5
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