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Chapter 10 – Internet Service Commands

Multi-Tech Systems, Inc. AT Commands for EDGE (E1) Modems (S000474A) 160

10.4 AT^SISI Internet Service Information

Description: AT^SISI serves to monitor the status of Internet service profiles defined with AT^SISS.

The AT^SISI read command requests the current status of all defined Internet service profiles.

The AT^SISI write command requests the status of the specified Internet service profile. If the

specified service profile is not defined yet, "+CME ERROR" is returned.

Syntax: Test Command: AT^SISI=?

Response: [^SISI:(list of defined <srvProfileId>s)]

Read Command: AT^SISI?

Response: If response is related to service profile(s) created / opened on this interface:

[^SISI: <srvProfileId>, <srvState>, <rxCount>, <txCount>, <ackData>,

<unackData>]

[^SISI: ...]

If response is related to service profile(s) created / opened on other

interface(s):

[^SISI: <srvProfileId>, <srvParmTag>value "srvType"]

[^SISI: ...]

ERROR

Write Command: AT^SISI=<srvProfileId>

Response: ^SISI: <srvProfileId>, <srvState>, <rxCount>, <txCount>,<ackData>,

ERROR

+CME ERROR: <err>

Parameters:

Internet service profile identifier as defined by AT^SISS (<srvProfileId>).

0...9

Internet service state (for details see AT^SISO parameter <srvState>).

2 Allocated

3 Connecting

4 Up

5 Closing

6 Down

Number of bytes received via AT^SISR since last successful AT^SISO write command.

This is the same value as displayed by the AT^SISO read command with the parameter <rxCount>.

Number of bytes sent via AT^SISW since last successful AT^SISO write command.

This is the same value as displayed by the AT^SISO read command with the parameter <txCount>.

Number of data bytes already sent and acknowledged at TCP layer. Value 0 indicates that no sent data is

acknowledged yet.

Parameter is not applicable to HTTP, POP3, SMTP and Socket with UDP. For these services the counter is

always set to 0.

Number of data bytes already sent but not yet acknowledged at TCP layer. A value 0 indicates that all sent

data is already acknowledged.

This is the same value as displayed in the response of the AT^SISW write command with the parameter

<unackData>.

Parameter is not applicable to HTTP, POP3, SMTP and Socket with UDP. For these services the counter is

always set to 0.

Notes:

• If a service is in state "Down" the responses for <rxCount>, <txCount>, <ackData> and <unackData> are the last

known values for the service in the states "Connecting", "Up" and "Closing".

• This command is not PIN protected.

• This command is supported in airplane mode.

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