Cinterion
®
EHS6 AT Command Set
10.6 AT^SISO
EHS6_ATC_V03.001
15/12/3
Confidential / Released
Page 247 of 513
3
Connecting
State after opening a service with
where the connection is being
established.
If connection setup is successful the service proceeds to the state "4" (Up) and
one of the URCs "
" and "
" may follow. If connection setup is not
successful, the "
" URC may appear and the service enters
6 (Down).
=3 means that the command channel is being
established.
If the service profile is configured as Socket listener, then the listener always
=3 and
=3 (LISTENER), while the
and
of the dynamically assigned service pro-
file may change. See examples in Section
and Section
.
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.
7
Alerting
A client tries to connect to the Transparent TCP Listener service.
8
Connected
A client is connected with the Transparent TCP Listener service.
9
Released
The client has disconnected from the Transparent TCP Listener service but
there are unread data. To go back into Up/Listening state read the pending
data using
.
Socket state identifier.
1
Socket not assigned, i.e. no TCP/UDP connection active.
2
Socket assigned as CLIENT.
3
Socket assigned as LISTENER or UDP Endpoint.
4
Socket assigned as SERVER.
Number of bytes received via
since last successful
write command.
or
write command.
<socketState>
(num)
<rxCount>
(num)
<txCount>
(num)