beautypg.com

State – Siemens Brodersen MC55 AT User Manual

Page 267

background image

MC55_ATC_V04.00

Page 267 of 475

3/17/06

Confidential / Released

Parameter Description

Indicates the state of PDP context activation.
0

deactivated

[1]

activated

PDP Context Identifier is a numeric parameter which specifies a particular PDP context definition. The param-

eter is local to the TE-MT interface and is used in other PDP context related commands.
1...2

Notes

ATH

will deactivate any PDP context.

• If the MT is in dedicated mode, the write command returns "+CME ERROR: operation temporary not allowed".
• A maximum of 2 contexts can be activated at the same time, no matter on which interface. Trying to activate

more than 2 contexts will cause "+CME ERROR: operation temporary not allowed". Note that, depending on

the provider, the number of activated contexts may be further restricted. In such cases "+CME ERROR:

unspecified GPRS error" will be returned and

AT+CEER

returns "+CEER: 50,26,0".

Remember that contexts may be activated implicitly by using the

ATD*98#

or

ATD*99#

GPRS compatibility

commands without specifying a

.

• If an activated context will be deactivated without using the command

AT+CGACT

, then the result code "NO

CARRIER" will be issued to indicate the context deactivation. This happens for example if the context deac-

tivation is forced by the network or if deactivation results from a network deregistration with

AT+COPS

=2.

(num)

(num)