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3. Command sets ]
If the negotiation fails, the modem will disconnect and issue NO
CARRIER message. This may occur if the line is too noisy or if
the remote modem
is a none MNP/LAPM
modem.
e Flow control (XON/XOFF) is recommended.
Escape code is detected (+++)
Password/Dialback can be used.
Inactivity timer (+S8) can be used.
Any connections without protocol will cause a disconnect.
Password dialback function and inactivity timer (+S8) can be
used with MNP/LAPM.
Auto reliable mode:
The commonly used mode is \N3 for protocol applications.
Auto protocol mode. As fixed protocol mode
bul if a non V.42 modem tries to connect, the
| modem will fall back to norma! data mode
after the protocol handshake atlempts.
Auto MNP mode. As auto protocol mode but
will not accept LAPM requests.
Auto LAPM made. As auto protocol mode but
will not accept MNP requests.
These modes differ from the fixed modes only when trying to
connect to a non V.42 modem. When this occurs the modem will
fall back to normal mode.
The modem will try to establish a reliable link just like described
above (see \N2, \N6, \N7) however if this Jink negotiation fatls
the modem will not disconnect but fallback to normal mode (see
\NO).
"See chapter 9, "Protocols and compression schemes"
LZTR104006 R1.00
3-33
Zat 14.4/14.4-7 and Zat 19.2/19.2-7
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