Specifications

Chapter 11 – GPRS Commands

Multi-Tech Systems, Inc. AT Commands for EDGE (E1) Modems (S000474A) 208

11.16 AT^SGCONF Configuration of GPRS-Related

Parameters

Syntax: Test Command: AT^SGCONF=?

Response: ^SGCONF : (list of supported <llc_pdu_length>_U>s), (list of supported

<llc_pdu_length>_I>s), (list of supported <GPRS msclass>es), (list of

supported <EGPRS msclass>es)

Read Command: AT^SGCONF?

Response: ^SGCONF: <llc_pdu_length_U>, <llc_pdu_length>_I>, <GPRS msclass>,

Write Command: AT^SGCONF=[<llc_pdu_length_U>][, [<llc_pdu_length>_I>][, [<GPRS

msclass>][<EGPRS msclass>]]]]

Response: OK

ERROR

+CME ERROR: <err>

Parameters:

<llc_pdu_length_U>

The maximum number of octets in an information field of Unnumbered (U) frames. Parameter is non-volatile.

0 No negotiation with network (500 will be used)

140...1520 Lower values diminish performance. Default = 500.

<llc_pdu_length_I>

The maximum number of octets in an information field of Combined (I) frames. Parameter is non-volatile.

0 No negotiation with network (500 will be used)

140...1520 Lower values diminish performance. Default = 500.

GPRS Multislot Class. The value can be one of the classes indicated with the Test command. The value set is

volatile and power up value is the maximum allowed.

EGPRS Multislot Class. The value can be one of the classes indicated with the Test command. The value set is

volatile and power up value is the maximum allowed.

Notes:

• This command will respond with "+CME ERROR: Operation Temporarily not Allowed" if the device is already

GPRS attached (See AT+CGATT). The same error response is sent during background protocol stack activity;

e.g., during network registration.

• This command is not PIN protected.

• This command is supported in airplane mode.