MC55 AT Command Set

10.3 AT+CGATT

s

mobile

Parameter Description

<state>(num)

Indicates the state of GPRS attachement.

0(P)

detached

[1]

attached

Notes

If the MT is in dedicated mode, write command returns with "+CME ERROR: operation temporary not allowed".

When the module is GPRS attached and a PLMN reselection occurs to a non-GPRS capable network or to a network where the SIM is not subscribed to for using GPRS, the resulting GMM (GPRS mobility management) state according to GSM 24.008 is REGISTERED/NO CELL, meaning that the read command will still show

<state>=1.

MC55_ATC_V01.05

Page 248 of 469

2/10/04

Confidential / Released

 

 

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Image 248
Siemens MC55 manual Statenum, State=1