> 10.9 | AT^SICO Internet Connection Open

> The AT^SICO write command opens a connection profile (also referred to as bearer). Unlike the AT^SISO command which starts a connection profile and the service profile bound to it, AT^SICO activates only the selected connection profile. Another difference over AT^SISO is that AT^SICO disables the inactivity timeout of the selected connection profile and, therefore, sets the "inactTO" value to -1 (see also AT^SICS). To release the connection use the close command AT^SICC. Closing the bearer restores the previously set "inactTO" value of the concerned connection profile.
> The AT^SICO command may be used, for example, to keep a bearer open while no service is active (i.e. while no service has been opened with AT^SISO). Also, the AT^SICO command is necessary for running the Ping command AT^SISX when no service has been opened with AT^SISO.
> A connection opened with AT^SICO remains open until closed with AT^SICC or, in case of inactivity, disconnected by the network after 25 hours usually. The network initiated disconnection can be avoided by sending AT^SISX at regular intervals (Ping). The Round Trip Time (RTT) of the AT^SISX command strongly depends on the data traffic of the IP services or DUN connections used at the same time.
> Please note that after sending the AT^SICO write command the AT channel is blocked until the connection is established. The command may be aborted when receiving any character during execution, e.g. "AT" or "at".
> The AT^SICO read command requests the current settings of all Internet connection profiles set with AT^SISC. The output is identical with the read command response of AT^SISC. One line is issued for every possible parameter of a given <conParmTag> value.
> Syntax

> Test Command AT^SICO=?
> Response(s)
> [^SICO:(list of defined <conProfileId>s)]
> OK

> Read Command AT^SICO?
> Response(s)
> [^SICO: <conProfileId>, <conParmTag>, <conParmValue>]
> [^SICO: ...]
> OK

> Write Command AT^SICO=<conProfileId>
> Response(s)
> OK
> ERROR
> +CME ERROR: <err>

> PIN |  | ASC0 | ASC1 | USB | MUX1 | MUX2 | MUX3 |  |  | Charge | Q | Last
> + |  | + | + | + | + | + | + |  |  | - | - | -

> Parameter Description

> <conProfileId>(num)

> 0...5
> Internet connection profile identifier defined with parameter <conProfileId> of AT^SICS.

> <conParmTag>(str)

> Internet connection profile identifier defined with parameter <conParmTag> of AT^SICS. See parameter description of AT^SICS.

> <conParmValue>(str)

> Internet connection parameter set with <conParmValue> of AT^SICS. See parameter description of AT^SICS.
> Note

> • | Be sure not to mix up the start and close commands for connection profiles and service profiles. It is allowed to use only the combinations AT^SICO / AT^SICC or AT^SISO / AT^SISC.