BGS2T AT Command Set
10.6 AT^SISO
BGS2T_ATC_V01.301
Page 265 of 554
1/31/12
c
4
Up
The service performs its purpose. The data transfer process is the major func-
tion at this state.
FTP: Data channel is up.
SMTP: The SMTP service will not enter
=4 until the host has writ-
ten the first data packet with
.
5
Closing
Internet Service is closing the network connection.
FTP: Command channel is released.
6
Down
This state is entered if
- the service has successfully finished its session (see note on Socket),
- the remote peer has reset the connection or
- the IP connection has been closed because of an error (see note below on
service or network errors).
If a service in this state be sure to close it with
before reopening it.
Socket state identifier.
0
Same as value "1", but applicable only if service profile is POP3.
1
Socket not assigned, i.e. no TCP/UDP connection active.
2
Socket assigned as CLIENT.
3
Socket assigned as LISTENER.
4
Socket assigned as SERVER.
Number of bytes received via
since last successful
write command.
or
write command.
Recently used local IP address in dotted-four-byte format and TCP port, separated by colon, e.g.
"192.60.10.10:80".
Remote IP address in dotted-four-byte format and TCP port, separated by colon, e.g. "192.60.10.10:80".
Notes
•
If the bearer cannot be established and
returns an error there might be a general GSM/GPRS prob-
lem. To identify the reason you can take advantage of the
command. Using
is especially
recommended when the
parameter of the
•
If a service or network error occurs during an IP session and the "
" URC or the
command dis-
play an error message, the service enters
=5 and then 6, i.e. the IP connection is closed. In this
case, the service still allows reading the data stored in the buffer, but writing data is denied. After reading,
close the service and open it again.
•
If an FTP connection is no longer available after network loss or server shutdown a 3-minute closing timeout
for each of the two used sockets takes effect, adding up to 6 minutes. The timeout is effective if the
is not sent.
<socketState>
(num)
<rxCount>
(num)
<txCount>
(num)
<locAddr>
(str)
<remAddr>
(str)
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