5686G-PRO User Guide
Page
32
of
94
Copyright © 2018 USR, a Division of UNICOM Global
5.
Have the remote user type a short message. It will be looped back by your Courier Lite 56K
Business Modem's transmitter for verification on the remote user's screen. You will not see
the message or any other data.
6.
When the remote user has completed the test, send the escape code,
+++
, and then
AT&T0
to
end the test.
Alternatively, you can end the test with the S18 test timer or by sending ATH or ATZ. Be
careful, because ATZ resets the modem in addition to ending the test.
In any case, the Courier Lite 56K Business Modem responds OK. If the modem sends
an ERROR message, you have issued an invalid command.
7.
Send
AT&M4
, unless you used ATZ.
REFERENCE
S-Registers
Understanding Bit-Mapped S-Registers
A bit-mapped S-Register uses one number to describe a collection of settings. Bit -mapping allows us
to pack a lot of information in a small space.
Bit-mapped registers are in the form of Sr.b=
n
, where r is the bit-mapped register; .b is the bit; n is 0
(off) or 1 (on).
The modem displays the value of an S-Register, as a decimal value between 0 and 255. The modem,
however, understands the decimal value as a collection of binary digits (bits).
