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User's Guide for ZyXEL Omni 56K and Omni 56K Plus Modems
5-15
Table 18. Service Class 2.0 Commands
Voice AT Commands
Command Function Option Default Description
+FLO Flow control
select.
0,1,2 2 0: NO flow control.
1: (XON/XOFF)Software flow control.
2: (RTS/CTS)Hardware flow control.
+VIP Initialize
parameters.
N/A N/A +VSD=15,70 (15*4, 7 second)
+VTD=100 (1 second)
+VRN=10 (10 second)
+VRA=70 (7 second)
+VGR=0 (Enable AGC)
+VGT=128
+FLO=2 (RTS/CTS)
+VIT=70 (7 second)
+FCLASS Voice/data/fax
selection
0,1,2.0,8 0 0: DATA.
1: CLASS 1 FAX.
2.0: CLASS 2.0 FAX.
8: VOICE.
+FMI? Manufacturer
ID.
N/A ZyXEL
+FMM? Model ID N/A Omni 56K
+FMR? Revision N/A Vx.xx
+VRX Voice
recording
N/A N/A Start recording.
+VGR Set the gain for
the received
voice sample.
0 0 0: Automatic gain control(AGC)
+VGT Set the gain for
the transmitted
voice sample.
0-255 128 0: Silence
1-255: The larger the value, the louder the
voice will be.
+VLS Select a voice
I/O device.
0,1 (Omni 56K
Plus only), 2
0 0: The DCE is on hook. Local phone
connected to Telco line.
1: The DCE is on-hook and is connected to
the local phone. The local phone is also
provided with power. The modem can
record/play through the local phone set.
(Omni 56K Plus only)
2: The DCE is off-hook and is connected to
the Telephone line. The local phone is
provided with power. The modem can
record/play through the local telephone line.