User's Manual

W – Controlling Connect Messages
This command controls the format of CONNECT messages.
ATW0,1 CONNECT result code reports DTE speed
ATW2 CONNECT result code reports DCE speed
ATW3 CONNECT result code reports DTE data rate, modulation mode,
error correction, data compression, DCE transmitter speed and DCE
receiver speed when the mode is configured for verbose V1 (text)
response codes. For numeric responses V0, the modem responds
with the W0 numeric response codes. The verbose response codes
use the following format:
CONNECT (DTE data rate)/(modulation)/(error correction)/ (data
compression)/TX=(DCE transmit data rate)/RX=(DTE receive data
rate)
Modulation types include:
V21, V22, V22B, V23C, V32, V32B, V32B, V34
Error correction types include: NONE, LAPM, MNP
Data compression types include: NONE, V42B, MNP5
For example: CONNECT 115200/V34/LAPM/V42B/TX=28800/RX=28000
ATW4 CONNECT result code reports DTE protocol, data compression, and
DTE data rate when the mode is configured for verbose V1 (text
response codes). For numeric responses V0, the modem responds
with the WO numeric response codes. The verbose response codes
use the following format: (DTE protocol) (date compression) (line
speed)
Error correction types include: NONE, LAPM, MNP
Data compression types include: NONE, V42B, MNP5
For example:
PROTOCOL: LAPM; COMPRESSION: V42B; CONNECT 33,600
2-8 AT COMMANDS: DATA MODEM