ZyXEL Communications omni.net Plus - Manual (Page 147)

Technical Reference for ZyXEL omni.net series
A-13
All the Following Commands Require a 'AT' Prefix
AT Com. Options Function & Description Reference
&Kn S27b0-1
&K0 Disables data compression
&K1 Automatic data compression (Default.)
&K2 Enables MNP 5 data compression
&K3 Enables V.42 bis data compression.
&Knn PPP/V.120/X.75 data compression control.
&K must be followed by two digits.
S83b2
&K00 Disable V.42bis.
&K44 Enable V.42bis (PPP/V.120/X.75), STAC (PPP)
&Ln POTS port selection during call answering. S84b5
&L0 Set priority to POTS port, Phone 1.
&L1 Set priority to POTS port, Phone 2, and internal modem.
&On Set default call type for conventional dialing commands. S83b4-5
&O0 ATDs, ATDPs, and ATDTs default to make calls for the POTS
port, Phone 2, and fax/modem.
&O1 Auto-selection of 64kbps and 3.1 kHz on outgoing calls (LCD+M
only).
&O2 ATDs, ATDPs, and ATDTs default to make ISDN data calls.
&O3 ATDs, ATDPs, and ATDTs default to make calls for the POTS
port, Phone 1.
&Sn Data Set Ready (DSR) function selection. S21b3
&S0 (*) DSR overridden, DSR always ON.
&S1 DSR according to CCITT (ITU-TSS). (See also S41b5, S44b4)
&Tn omni.net testing.
&T9 Initiate ISDN Loopback test.
&T10 Initiate ISDN Loopback with self-test.
&T11 Initiate ISDN Loopback from B1, through switch, to B2.
&Vn View profile settings.
&V0 View current active settings.