Siemens AC75 manual Atsico Internet Connection Open, Atsico=?, Atsico?, ATSICO=conProfileId

AC75 AT Command Set

10.9 AT^SICO

s

10.9AT^SICO Internet Connection Open

The AT^SICO write command opens a connection profile (also referred to as bearer). Unlike the AT^SISO com- mand 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, discon- nected 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		4	Last
		+	+	+	+	+	+	+	-	-	-
Parameter Description
<conProfileId>(num)
0...5	Internet connection profile identifier defined with parameter <conProfileId>
	of AT^SICS.

AC75_ATC_V01.002	Page 287 of 569	10/30/06
Confidential / Released