Sierra Wireless DART 300 manual AT Commands in Cdpd Mode

References		DART 300 Modem
Table 12-1: AT Commands in CDPD Mode (continued)
Command	Description
E[n]	Echo (Command State)
	Controls echoing of characters from the host (DTE) back to the host when the modem is in
	command state. This will also affect framing of responses. See Section 4.3.3 for details.
	Value	Setting
	0	Disable echo.
	1	Enable echo. (Default)
H[n]	Hook Control
	In CDPD mode, this means, “close the current session”. The NEI will be de-registered from the
	CDPD network if +WS173=0 (manual registration). Data Carrier Detect (DCD) is turned off in
	any case.
	Value	Setting

0If +WS173=0 (manual registration), de-register the current NEI and turn off DCD. If +WS173=1 (auto registration) the modem will turn off DCD but will remain registered. This is used for ending server sessions.

1De-register the current NEI and turn off DCD.

NOTE that using H1 will de-register even if the modem is set to auto-register. The modem will not attempt to re-register until auto-registration is reset with +WS173=1 or the modem is reset. See the note in Section 7.3.3.1 for details.

When using UDP packet service, data in the modem’s internal transmission buffers, can be lost if de-registration occurs. The user should allow sufficient time for transmission between forwarding the last packet and closing the session. A preferred technique is to implement an application level protocol to have data transmissions acknowledged or timed-out before closing a session.

I[n]	Identification/Checksum Command
	Returns information about the modem.
	Value	Response	Meaning
	3	Sierra Wireless Inc. SB300	Make and model
	4	999007x	Product code
	5	Rn-n-n d:/filespec yyyy/mm/dd hh:mm:ss
			Control firmware revision
	6	xxxxxxx xxxx	Revision code
	7	xxxxxx	Feature Option Code (see below)
	9	Sierra Wireless AirCard	Product

The Feature Options reported by ATI7 is a string of characters with these meanings:

CCDPD packet mode capable (+WS46=4)

B AirBooster 350 RF amplifier is supported

T Temperature of radio can be queried.

OOn-line

Causes the modem to go from command state to data state with the PAD service mode determined by +WS45 (Packet Service). The previously determined IP address and port (if in a PAD service) are used. See D (Dial) for setting the destination IP address and port.

Any parameter value is ignored.

Result Codes:

CONNECT

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