beautypg.com

Siemens Brodersen MC55 AT User Manual

Page 289

background image

MC55_ATC_V04.00

Page 289 of 475

3/17/06

Confidential / Released

2

Not registered, but ME is currently trying to attach or searching an operator to

register to. The ME is in GMM state GMM-DEREGISTERED or GMM-REGIS-

TERED-INITIATED. The GPRS service is enabled, but an allowable PLMN is

currently not available. The ME will start a GPRS attach as soon as an allow-

able PLMN is available.

3

Registration denied. The ME is in GMM state GMM-NULL. The GPRS service

is disabled, the ME is not allowed to attach to GPRS if requested by the user.

4

Unknown

5

Registered, roaming. The ME is in GMM state GMM-REGISTERED or GMM-

ROUTING-AREA-UPDATING-INITIATED on a visited PLMN.

Note

• When the module is GPRS attached and a PLMN reselection occurs to a non-GPRS 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

=1 or

=5.