User guide

Raven EDGE/GPRS for Cingular - User Guide, version 2.31 71
AT Commands: TCP
This group includes commands specific to TCP communications.
FIGURE 1. Common : TCP
S0=n
S7=n
S60=n
TCP
This register determines how the Raven responds to an incoming TCP connection request. The
Raven remains in AT Command mode until a connection request is received. DTR must be
asserted (S211=1 or &D0) and the Raven must be set for a successful TCP connection. The
Raven will send a “RING” string to the host. A “CONNECT” sent to the host indicates
acknowledgement of the connection request and the TCP session is established.
n=0 : Off (Default)
n=1 : On
n=2 : Use T
elnet server mode
on TCP connections.
n=3 : With a Telnet connection, overrides the client's default echo, allowing the server
on the host port to
perform the echo. CRLF sequences from the telnet client will also be edited to simply pass CRs to the
server on the host port.
Specifies the number of seconds to wait for a TCP connection to be established when dialing
out.
n=seconds
Telnet Client Echo Mode.
n=0 : No Echo
n=1 : Local Echo (Default)
n=2 : Remote Echo