HUAWEI MC509 CDMA LGA Module
AT Command Interface Specification
Internet Service Interface Commands
Issue 01 (2011-08-26)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
114
10.2 ^IPOPENCommand for Establishing a TCP/UDP Connection

10.2.1 Syntax

Command
Possible Response(s)
^IPOPEN=<link_id>,
<type>,
<dest_ip>,<dest_port
>,
<local_port>
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>ERROR<CR><LF>
^IPOPEN?
If a connection is established:
<CR><LF>^IPOPEN:<link_id>,<type>,<local_port>[,<dest_i
p>
[,<dest_port>]]
[<CR><LF>^IPOPEN:<link_id>,<type>,<local_port>[,<dest_i
p>
[,<dest_port>]]
[...]]<CR><LF>
<CR><LF>OK<CR><LF>
If no connection is established:
<CR><LF>OK<CR><LF>
^IPOPEN=?
<CR><LF>^IPOPEN:(supported <link_id> list), (supported
<local_port> list),(supported <dest_port> list)<CR><LF>
<CR><LF>OK<CR><LF>

10.2.2 Interface Description

This command establishes a wireless connection with one or more remote servers to
complete data exchange. TCP and UDP modes are supported.

10.2.3 Parameter Description

<link_id>: Specifies the ID of a connection. The value ranges from 1 to 5.
<type>: A string, specifying the connection type. Double quotation marks are used in
the execution command. Double quotation marks are not contained in the returned
value when the read command is executed. For details, see "Example."
"TCP": A TCP connection is established.
"UDP": A UDP connection is established.
<dest_ip>: A string, specifying the target IP address to be connected to. Double
quotation marks are used in the execution command. Double quotation marks are not