Epson ActionNote 880C User Manual - Fax/Data Modem - Page 32

No Retrain, Auto-retrain Control V.22 bis and V.32 bis only, AT&Vn

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%En Auto-retrain Control (V.22 bis and V.32 bis only) This command controls whether the modem will automatically initiate a modem retrain whenever the Received Data signal quality falls below a threshold that may affect data reliability. The value for 'n' is stored in the NVRAM, but it is not displayed by the 'AT&Vn' command. %E0 Disabled. %E1 Enabled. (default) %Gn Auto Fallforward/fallback Enable (V.32 bis only) This command selects whether the modem will automatically initiate a change to a higher speed or lower speed depending on received signal quality (i.e. Rate Negotiation). The modem always responds to any rate change initiated by the remote modem. %G0 %G1 Disabled. (default) Enabled. %Q Line Signal Quality This command returns the higher order byte of the EQM value, This information indicates the quality of the telephone line signal. Note that this value will be different for different DAAs. Range: 0-7 0-255 No Retrain 24 COMMAND REFERENCE - 2

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%En
Auto-retrain Control (V.22 bis and V.32 bis only)
This command controls whether the modem will automatically initiate a modem
retrain whenever the Received Data signal quality falls below a threshold that may
affect data reliability. The value for ‘n’ is stored in the NVRAM, but it is not
displayed by the
‘AT&Vn’
command.
%E0
Disabled.
%E1
Enabled. (default)
%Gn
Auto Fallforward/fallback Enable (V.32 bis only)
This command selects whether the modem will automatically initiate a change to
a higher speed or lower speed depending on received signal quality (i.e. Rate Ne-
gotiation). The modem always responds to any rate change initiated by the remote
modem.
%G0
Disabled. (default)
%G1
Enabled.
%Q
Line Signal Quality
This command returns the higher order byte of the EQM value, This information
indicates the quality of the telephone line signal. Note that this value will be differ-
ent for different DAAs.
Range:
0-255
0-7
No Retrain
24
COMMAND REFERENCE - 2