User`s manual

AT Command Set Summaries 77
Command Options Function & Description Ref.
&M3 Synchronous mode
&Nn Modem link mode options
(DCE/DCE). (See also S43.7,
S48.1)
S19
&N0 * Multi-Auto, auto negotiate highest
possible link rate: V.34, ZyX
19200, ZyX16800, V.32bis, V.32,
V.22bis, V.22 and Bell 212A, G3
Fax V.17/V.29/V.27ter and cellular
modes. (See also S38.4, S43.0,
S43.1, S43.3 and S48.5)
&N1 V.33 14400/12000 (models with 4-
wire leased lines only)
&N2 V.33 12000 (models with 4-wire
leased lines only)
&N3 V.32 9600T/9600/7200T/4800
&N4 V.32 9600/7200/4800
&N5 V.32 4800
&N6 V.29 9600 (models with 4-wire
leased lines only)
&N7 V.29 7200 (models with 4-wire
leased lines only)
&N8 V.29 4800 (models with 4-wire
leased lines only)
&N9 V.27bis 4800 (models with 4-wire
leased lines only)
&N10 V.27bis 2400 (models with 4-wire
leased lines only)
&N11 V.26bis 2400 (models with 4-wire
leased lines only)
&N12 V.23 1200/75 (See also S48b3,
S52b7)