3Com 1.024.1644-00 - Manual (Page 64)

Technical Reference
58 56K Voice Faxmodem Internal - User’s Guide
Yn Selects power-on/reset default configuration
Y0 Use profile 0 setting in NVRAM
Y1 Use profile 1 setting in NVRAM
Y2 Use factory configuration 0
Y3 Use factory configuration 1
Y4 Use factory configuration 2
Z Resets modem
Z0 Resets modem to NVRAM profile selected by Y
command or dip 7
Z1 Resets modem to NVRAM profile 0
Z2 Resets modem to NVRAM profile 1
Z3 Resets modem to factory default profile 0 (&F0)
Z4 Resets modem to factory default profile 1 (&F1)
Z5 Resets modem to factory default profile 2 (&F2)
Extended Data Commands
&$ Displays a list of ampersand (&) commands
&An Enables/disables additional result code subsets (see Xn)
&A0 ARQ result codes disabled
&A1 ARQ result codes enabled
&A2 V.32 modulation indicator added
&A3 Protocol indicators added
LAPM/MNP/NONE (error
control) and V42bis/MNP5 (data compression)
&Bn Manages modem’s serial port rate
&B0 Variable, follows connection rate
&B1 Fixed serial port rate
&B2 Fixed in ARQ mode, variable in non-ARQ mode
&Cn Controls Carrier Detect (CD) signal.
&C0 CD override
&C1 Normal CD operations