Bay Networks 5391 Getting Started Manual page 111

:E n Compromise Equalizer
:E0 Disables the compromise equalizer only when the modem is in
V.32bis or V.32 mode; may be useful for direct line connections or
PBX-to-PBX connections.
:E1 Enables the compromise equalizer; may be useful for
outside-line-to-outside-line or PBX-to-outside-line connections.
Controls equalization operation in V.32bis or V.32.
\E n
Data Echo
\E0 Does not echo data sent by the local computer.
\E1 Echoes data sent by the local computer.
When operating in connect state, determines whether the modem
echoes characters sent from the local computer. \E1 functions only
during normal mode connections.
%F n V.23 Mode
%F0 Allows multi-protocol answering; disables V.23 mode on originate
modem.
%F3 1,200 bps transmit, 1,200 bps receive (half duplex) V.23 mode.
Detemines the V.23 mode used at 1,200 bps.
Entering AT%Fn (n=1, 2, or 3) disables all protocols
except V.23. Entering AT%Bn forces the %F0 setting.
When %F0 is set and the modem is at 1,200 bps or higher, it can
answer as a V.23 1,200/1,200 bps half-duplex modem.
When %F3 is set, the modem can only establish normal or direct
1,200 bps half-duplex connections.
Appendix A AT Commands and Registers
T1 Getting Started Guide
A-17