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Enfora Enabler II-G Assisted GPS
Modem Integration Guide
The following provides information related to the general construction of the UDP-API packet.
Other command structures are available and can be found in the API reference manual.
All AT commands listed in the GSM0107PB001MAN document are supported via this method.
To send an AT command via DUN or OTA, the user has to follow the following message
structure. This message structure sends the ATI command to the modem and receives Enfora,
Inc. response from the modem.
Bytes
Data
Description
Comments
0 – 19 IP Header
20 – 27 UDP Header
28 0x00
29 0x01
Sequence Number
30 0x04 AT Command Read/Write
31 0x00 Reserved
32 0x41
33 0x54
34 0x49
AT Command
(ATI)
Following data will be returned by the modem:
Bytes
Data
Description
Comments
0 – 19 IP Header
20 – 27 UDP Header
28 0x00
29 0x01
Sequence Number
30 0x05 AT Command Response
31 0x00 Reserved
32 0x0D
33 0x0A
34 0x45
35 0x6E
36 0x66
37 0x6F
38 0x72
39 0x61
40 0x2C
41 0x20
42 0x49
43 0x6E
44 0x63
45 0x2E
46 0x0D
47 0x0A
AT Command Response
(Enfora, Inc.)
MLG0208PB001 49 Version1.01 – 10/3/2006