C55/C55i AT COMMAND SET Description Preliminary - Falcom
C55/C55i AT COMMAND SET Description Preliminary - Falcom
C55/C55i AT COMMAND SET Description Preliminary - Falcom
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<strong>C55</strong>/<strong>C55</strong>I <strong>AT</strong> <strong>COMMAND</strong> <strong>SET</strong> VERSION 1.00<br />
9.14 <strong>AT</strong>A Manual response to a network request for PDP<br />
context activation<br />
Syntax<br />
Exec Command<br />
Response(s)<br />
<strong>AT</strong>A CONNECT<br />
NO CARRIER<br />
Reference(s) PIN ASC0<br />
GSM 07.07 ● ●<br />
Command <strong>Description</strong><br />
The V.25ter <strong>AT</strong>A command may be used to accept a network request<br />
for a PDP context activation announced by the unsolicited result<br />
codes RING or "+CRING: GPRS". The MT responds with CONNECT,<br />
enters V.25ter online data state and follows the same procedure as it<br />
would after having received a <strong>AT</strong>+CGANS=1 with no or <br />
values specified.<br />
If you try to answer a request which is no longer present or which is<br />
already answered by another instance, NO CARRIER is returned.<br />
9.15 <strong>AT</strong>D*99# Request GPRS service<br />
Syntax<br />
Exec Command<br />
<strong>AT</strong>D*99[* [][*<br />
[][* []]]]#<br />
Reference(s) PIN ASC0<br />
GSM 07.07 ● ●<br />
Response(s)<br />
CONNECT NO CARRIER<br />
Command <strong>Description</strong><br />
This command causes the MT to perform whatever actions are<br />
necessary to establish communication between the TE and the<br />
external PDN.<br />
The V.25ter 'D' (Dial) command causes the MT to enter the V.25ter<br />
online data state and, with the TE, to start the specified layer 2<br />
protocol. No further commands may follow on the <strong>AT</strong> command line.<br />
GPRS attachment and PDP context activation procedures may take<br />
place prior to or during the PDP startup if they have not already been<br />
performed using the <strong>AT</strong>+CG<strong>AT</strong>T and <strong>AT</strong>+CGACT commands. If the<br />
context to be used is already activated, it will be deactivated first.<br />
This ensures that the right context parameters will be used (e.g. QoS<br />
changes since the last context activation or the called address<br />
specified by <strong>AT</strong>D*99#).<br />
Examples on how to use this command are provided in chapter "using<br />
GPRS <strong>AT</strong> commands (Examples)".<br />
To confirm acceptance of the command before entering the V.25ter<br />
online data state command will respond with CONNECT.<br />
This confidential document is the property of FALCOM GmbH and may not be copied or circulated without permission.<br />
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