Release Note для Nortel 4000
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Remote Access Software Version 5.3 Release Notes
300115-B Rev. A
Notes on x2 56K Modem Support
U.S. Robotics has set up a BBS where you can test your line for x2 support
by dialing 1-888-877-9248 from a terminal program and logging in as
LINE TEST. Refer to http://x2.usr.com/connectnow/linetest.html for
complete details. If your phone line meets the criteria of the line test, you
probably can use a 56K modem. Note, however, that a call to the U.S.
Robotics test line may be routed differently than a call to your own facility.
The only way to find out for certain if your line is compatible with x2 is
to borrow a 56K modem and dial in to your 5399 RAC or 8000 RAC from
your home or office.
by dialing 1-888-877-9248 from a terminal program and logging in as
LINE TEST. Refer to http://x2.usr.com/connectnow/linetest.html for
complete details. If your phone line meets the criteria of the line test, you
probably can use a 56K modem. Note, however, that a call to the U.S.
Robotics test line may be routed differently than a call to your own facility.
The only way to find out for certain if your line is compatible with x2 is
to borrow a 56K modem and dial in to your 5399 RAC or 8000 RAC from
your home or office.
The x2 protocol can be very optimistic in establishing a high speed
connection. This may result in a connection that, while reporting a high
connect speed, may actually underperform a V.34 connection. If this
happens, you might want to disable x2 in the client modem. Refer to your
modem manufacturer’s documentation for the specific modem command
to do this.
connection. This may result in a connection that, while reporting a high
connect speed, may actually underperform a V.34 connection. If this
happens, you might want to disable x2 in the client modem. Refer to your
modem manufacturer’s documentation for the specific modem command
to do this.