Hayes V.92 - AT commands to force communication speeds

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AT commands to force communication speeds
To force different communication speeds Type these AT
commands and
press Enter
Negotiate speed and protocol (default setting) AT &F
To force protocol AT \N3
Dualmode (V.90 or V.92)—56000 bps AT+MS=V92,1
V92 only (disable V.90)—56000 bps AT+MS=V92,0
V.90 only (disable V.92)—56000 bps AT+MS=V90,0
Disable both 56K and autorate on V.34—33600 bps AT+MS=V34,1
V.34—33600 bps AT+MS=V34,0
V.32bis—14400 bps AT+MS=V32B,0
V.32—9600 bps AT+MS=V32,0
2400 bps AT+MS=V22B,0
1200 bps AT+MS=V22,0
Notes: Some software allows these commands to be added to the
list of dial prefixes or the initialization string.
When the protocol is forced, the modem will not attempt to connect
at other protocols if it cannot connect at the forced protocol. It will try
to connect at the fastest speed available within the forced protocol.
There are other configurations that can be forced as well. If you
need to select a particular configuration, use the AT command
strings shown below. You can always return to the modem’s default
configuration by typing AT &F and pressing the Enter key.
Remember that if you do this, the modem will not have received the
commands in your software’s initialization string as it normally would.
Using the ATZ command overcomes this problem if you have saved
all of your setup parameters in nonvolatile memory. (To save setup
parameters in nonvolatile memory in AT terminal mode: Type AT,
followed by the parameter settings you desire, followed by &W, and