Standard Horizon GM29 manual Part 3 Using AT Commands

GM29 INTEGRATOR’S MANUAL

	3.1	Switching On the Modem		36
	3.2	Switching Off the Modem		36
	3.3	Resetting the Modem		36
	3.4	Operating States/LED		37
4. Hints for Integrating the Modem				38
	4.1	Safety Advice and Precautions		38
		4.1.1	General	38
		4.1.2	SIM Card	38
		4.1.3	Antenna	39
	4.2	Installation of the Modem		39
		4.2.1 Where to Install the Modem		39
		4.2.2 How to Install the Modem		40
	4.3	Antenna	..........................................................................................	41
		4.3.1	General	41
		4.3.2	Antenna Type	42
		4.3.3	Antenna Placement	42
		4.3.4	The Antenna Cable	42
		4.3.5	Possible Communication Disturbances	42
	4.4	Accessories		43
5.	Technical Data			44
6.	Declaration of Conformity			49

Part 3: Using AT Commands			..............................................................................	51
1. Introduction to AT Commands				53
1.1	Overview		..........................................................................................	53
1.2	Syntax Description			53
	1.2.1	Conventions		53
	1.2.2	AT Command Syntax		54
	1.2.3	AT Response Syntax		55
1.3	Error Codes		..........................................................................................	57
	1.3.1 +CME ERROR (Mobile Equipment Error Code)			57
	1.3.2 +CMS ERROR (Message Service Failure Result Code)			58
1.4	Examples on How to Use the AT Commands			59
2. Call Control		.............................................................................................................		61
2.1	AT+CPIN		PIN Control	61
2.2	ATA		Answer Incoming Call	61
2.3	ATD		Dial	62
2.4	ATH		Hang up	64
2.5	ATO		Return to Online Data Mode	64
2.6	ATP		Select Pulse Dialling	64
2.7	ATT		Select Tone Dialling	64
2.8	ATX		Call Progress Monitoring Control	65
2.9	AT+CHUP		Hang up Call	65
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LZT 123 7361 R1A