MC55_ATC_V04.00 Page 295 of 475 3/17/06
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11.17 ATD*98# Request GPRS IP service
This command causes the MT to perform whatever actions are necessary to establish a communication between
the TE and the external PDN.
The V.250 'D' (Dial) command causes the MT to enter the V.250 online data state and, with the TE, to start the
layer 2 protocol.
GPRS attachment and PDP context activation procedures may take place prior to or during the PDP startup if
they have not already been performed using the AT+CGATT and AT+CGACT commands. If the context to be used
is already activated, it will be deactivated first. This ensures that the right context parameters will be used (e.g.
QoS changes since the last context activation).
To confirm acceptance of the command before entering the V.250 online data state command will respond with
CONNECT.
When the layer 2 protocol has terminated, either as a result of an orderly shut down of the PDP or an error, the
MT enters V.250 command state and returns NO CARRIER (for details refer to Section 11.6.1, Automatic deac-
tivation of PDP context during dial-up PPP).
Syntax
Parameter Description
Parameter specifies a particular PDP context definition (see AT+CGDCONT command). If no context is specified,
an internal context with default properties is used (see AT+CGDCONT, AT+CGQREQ and AT+CGQMIN).
1...2
Notes
• If MC55 is in dedicated mode, command returns "+CME ERROR: phone busy".
•ATD is used as a standard V.250 AT command, too.
Exec Command
ATD*98[* <cid>]#
Response(s)
CONNECT
NO CARRIER
Reference(s) PIN ASC0 ASC1 MUX1 MUX2 MUX3 Charge Last
GSM 07.07 % % % % % % ! ! %
<cid>(num)