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echo: usr_modems
to: JAMES MCKENZIE
from: RICK COLLINS
date: 1998-03-31 10:22:00
subject: ISP Speeds

At 16:22/29/Mar, James Mckenzie (1:309/63) said:
====================================
RC>> USR modems do not support the Wn command.  USR modems _always_ return
RC>> DCE speed, never DTE speed.
JM> Thanks for the correction.  I would like to know if there is a method 
with 
JM> USR modems to return the connect speed, type of compression/error 
JM> correction.  I should know the DCE speed even under Windows95 as that is 
JM> set under the connect properties for the modem.
Well, the DCE speed is the modem-modem speed, the speed set in "properties" 
is the DTE speed (modem - PC).
That aside, the USR will return:
CONNECT ///
with the default setting AT&F1.  Specifically, the &An command controls what 
is returned, with AT&A3 returning the whole string.  Here's an example:
CONNECT 28800/ARQ/V34/LAPM/V42BIS
Here's a Win95 Modemlog.txt that shows the process in Win95:
   ----- MODEMLOG.TXT begins -----
03-23-1998 13:59:34.35 - Modem type: Sportster 56000 Fax External
03-23-1998 13:59:34.35 - Modem inf path: USRSPX2.INF
   --------CUT-------
03-23-1998 13:59:37.45 - Dialing.
03-23-1998 13:59:37.45 - Send: ATDT#######
03-23-1998 13:59:56.24 - Recv: CONNECT 
28800/ARQ/V34/LAPM/V42BIS

03-23-1998 13:59:56.24 - Interpreted response: Connect

03-23-1998 13:59:56.24 - Connection established at 28800bps.

03-23-1998 13:59:56.24 - Error-control on.

03-23-1998 13:59:56.24 - Data compression on.

   ----- MODEMLOG.TXT ends -----
Win95's Dial Up Networking doesn't simply "display" the connect string, it 
attempts to match it with data from the .INF file and it determines what to 
display depending on whether a successful match was obtained.
That's why a proper .INF file is necessary to see the DCE speed displayed.
Rick
--- Msged 4.00
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* Origin: The Warlock's Cave, Ottawa ON (1:163/215.39)

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