Specifications

Chapter 10 – Internet Service Commands
Multi-Tech Systems, Inc. AT Commands for EDGE (E1) Modems (S000474A) 156
If “password” is set, then “user” must be set as well.
If “user” is omitted, the string “anonymous” is selected for “user” and
“password”.
If “password” is omitted, the password request is served by an empty
string.
If “tcpPort” is omitted, the service connects to the FTP default port 21.
If “url-path” contains only the IP address, a directory listing is
requested.
If “url-path” contains only the IP address and has a slash ‘/’
appended, a detailed directory listing is requested.
“type”: [a)scii | i)mage | d)irectory]
“mode”: [u)nique | a)ppend | d)elete]
“u)nique” selects the FTP Store Unique command to create a file
name unique to the current directory. If the file name is assigned by
the server then the “^SIS” URC will appear, indicating <urcInfoId>
2100 and the file name.
“d)elete” clears given ‘element name’.
If “mode” is omitted “replace mode” is default setting.
3. HTTP
HTTP client URL
Length: 6…255
“http://’server’/’path’:’tcpPort’
“
“server”: FQDN or IP-address
“path”: path of file or directory
“tcpPort”: If parameter is omitted, the service connects to HTTP default port
80.
Refer to “IETF-RFC 2616”.
4. SMTP
SMTP server address (string).
Length 4...256.
5. POP3
POP3 server address (string).
Length 4...256.
hcContent Optional parameter for HTTP method “Post”.
Length: 0…127
Can be used to transfer a small amount of data. The content of this string will only
be sent if “hcContLen” = 0. The maximum length of “hcContent” is 127 bytes.
To transmit a larger amount of data “hcContLen” must be set to a non-zero value.
In this case the “hcContent” string will be ignored, and data transmission from the
client to the server is done with AT^SISW.
hcContLen Mandatory parameter for HTTP method “Post”.
Length: 0…2
31
-1
The content length shall be set in the header of the HTTP “Post” request before the
data part is transferred.
If “hcContLen” = 0 then the data given in the “hcContent” string will be posted.
If “hcContLen” > 0 then the AT^SISW command will be used to send data from the
client to the server. In this case, “hcContLen” specifies the total amount of data to
be sent. The data can be sent in one or several parts. For each part, the
transmission is triggered by the URC “^SISW: x, 1”, then the AT^SISW write
command can be executed. After the exact number of bytes are transferred via
the serial interface, the HTTP client will go from service state "Up" to service
state "Closing" (see parameters <srvState> and <srvState> for detail). Finally, the
URC. “^SISW: x, 2” indicates that all data have been transferred and the service
can be closed with AT^SISC.
hcUsrAgent The user agent string must be set by the application to identify the mobile. Usually
operation system and software version info is set with this browser identifier.
Length: 0…63
hcMethod HTTP method specification: 0=GET, 1=POST, 2=HEAD.
hcProp Parameter for several HTTP settings.
Length: 0…127
The general format is ‘key’: <space> ‘value’ “\0d\0a”.
Multiple settings can be given separated by “\0d\0a” sequences within the string.
Possible ‘key’ values are defined at HTTP/1.1 Standard RFC 2616.