![Fibocom L860-GL Скачать руководство пользователя страница 199](http://html1.mh-extra.com/html/fibocom/l860-gl/l860-gl_at-command-user-manual_2286851199.webp)
Reproduction forbidden without Fibocom Wireless Inc. written authorization – All Rights Reserved.
FIBOCOM L860 AT Commands User Manual
Page 199 of 254
The detailed behavior after the Online Data state has been entered is dependent on the PDP type, and is
described briefly. 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 +CGATT and +CGACT
commands.
When the layer 2 protocols have terminated, either as a result of an orderly shut down of the PDP or an
error, the ME enters the ITU V.25ter command state and returns the NO CARRIER final result code.
If <called address> is supported and provided, the ME automatically sets up a virtual call to the specified
address after the PDP context has been activated.
If <L2P> and <cid> are supported, the +CGDCONT, +CGQREQ and other such commands may then be
used in The modem initialization AT command string to set values for PDP type, APN, QoS and so on.
If <L2P> is not supported, or is supported but omitted, the ME uses a layer 2 protocol appropriate to the
PDP type.
If <cid> is not supported, or is supported but omitted, the ME attempts to activate the context using one of
the following:
Any information provided by the terminal during the PDP start up procedure. For example, the terminal
may provide a PDP type and/or PDP address to the ME.
A prior knowledge, for example, the ME may implement only one PDP type.
Using the "Empty PDP type" No PDP address or APN is sent in this case and only one PDP context
subscription record is present in the HLR for this subscriber.
This command may be used in both normal and modem compatibility modes.
Command
Description
Set
[Function]
This command enables the ME to perform the actions necessary for establishing
communication between the terminal and the external Packet Data Network (PDN).
[Syntax]
ATD*<GPRS_SC>[* [<called_address>] [*[<L2P>][*[<cid>]]]]#
[Response/Action]
CONNECT
or:
ERROR
Read
N/A
Test
N/A
Parameters
<GPRS_SC> (GPRS Service Code)
Digit string (value 99) which identifies a