PinPoint CDMA User Guide Version 1.0
AirLink Communications, Inc.
Page 26
February 22, 2003
6.2.7
TCP Auto Answer
TCP auto answer (
S0=1|2
) also allows a TCP connection to be “answered” when in
UDP mode with UDP auto answer on and there is no current UDP “connection”. This
functionality is the same as the answering of a TCP connection while in Hybrid
modes.
6.2.8
Hybrid Modes
The hybrid modes from the pre-ALEOS days (MD=5, 6) are no longer implemented as
special, unique modes. Now that UDP auto answer (UDP half-open, S82=2) can be
enabled in conjunction with UDP PAD mode (MD3), effectively this is the same as
MD5 and MD6 previously accomplished. Setting MD5 and MD6 are still supported,
but not recommended, since all they do is set several settings as described below.
The settings to accomplish hybrid modes:
AT Setting
Hybrid (MD5)
Hybrid2 (MD6)
MD 3
3
S82 2
2
S0 1
1
*UDPLAST 0
1
6.2.9
SLIP Mode
SLIP mode is entered be using the “
AT\ASLIP”
command. As in PPP Mode, the IP
address that the host assumes is affected by the setting of
S300
. SLIP does not
negotiate the IP with the host, so before making a SLIP connection, the host SLIP
driver must be configured to use the IP specified by querying
S110
.
The host can exit SLIP mode by deactivating DTR (if
S211=0
) or issuing the
+++
AT
escape sequence.
Note that DTR needs to be asserted (or
S211=1
) by the host before SLIP mode can be
entered.
