How the modem should dial the telephone number

Data Mode AT COMMANDS

Table 18. Data Mode Command Descriptions (Continued)

Command	Default		Description

		Dial Command: This command causes the modem to immediately go off-hook as an originating modem
		and dial a telephone number with corresponding dial modifiers. Dial modifiers are parameters that define
		how the modem should dial the telephone number.
		Dial Modifiers
		0–9	Dialing Digits
		A, B, C,	Tone Dial Characters
		D, *, #
		P	Pulse Dial—configures the modem to use pulse dialing to dial a telephone number.
		R	Reverse Originate Mode—places the modem in answer mode. This modifier should be the
			last character in the dialing string (for example, ATDT 12345678R). After dialing the
			telephone number, the modem goes into data modem answer mode instead of originate
			mode.
		S = n	Dial NVRAM Telephone Number—causes the modem to dial a telephone number
D	none		previously stored in the NVRAM with the AT&Zn=x command.
D	none	T	Tone Dial—configures the modem to use DTMF tones to dial a telephone number.
		T
		W	Wait for Dial Tone—causes the modem to look for dial tone for a specified amount of time.
			If dial tone or the amount of time specified by the S-register, S6, times out, the modem
			processes the next command in the dial string. If a busy signal is detected, the modem
			responds to the DTE with a busy response code and then goes into off-line command
			mode.
		,	Pause—causes the modem to pause or delay implementing the next parameter in the dial
			string by the time specified in S-register S8.
		!	Flash Hook—causes the modem to go on-hook for 0.75 seconds.
		@	Wait for Quiet Answer—causes the modem to wait for specified amount of time (S-register
			S7) followed by 5 seconds of silence before processing the next dial modifier.
		;	Return to Idle State—causes the modem to enter online command mode without initiating a
			data modem handshake (used for phone directory auto-dialers).
		<space> - ( ) Ignored by Modem—these four characters are ignored by the modem. Spaces also may be
			included in the dial string to separate area codes and numbers.

		Command Mode Echo: This command selects whether the modem echoes AT commands back to the
En	1	host in either online or off-line command mode.
En	1	n = 0	Echo disabled
		n = 0	Echo disabled
		n = 1*	Echo enabled

		Switch Hook Control: This command controls the telephone line relay (OHREL*) and causes the
Hn	0	modem to either hang up or pick up the telephone line.
Hn	0	n = 0*	Hang up telephone line (go on-hook)
		n = 0*	Hang up telephone line (go on-hook)
		n = 1	Pick up telephone line (go off-hook)

NOTE: An asterisk (*) denotes the factory-default setting.

536EX Chipset Developer’s Manual

Intel Confidential

537EX specifications

The Intel 537EX is a powerful and innovative embedded processor designed for a range of applications, particularly in the fields of industrial automation, telecommunications, and transport management systems. This processor is a member of Intel's embedded product line, tailored specifically to meet the demands of systems that require high reliability and long lifecycle support.

One of the main features of the Intel 537EX is its multi-core architecture, which enables efficient parallel processing capabilities. This allows for the execution of multiple tasks simultaneously, significantly improving overall system performance. The processor also incorporates Intel’s advanced power management technology, which ensures that the device consumes energy efficiently, enhances thermal performance, and prolongs the lifespan of the system.

The Intel 537EX supports a range of connectivity options, including high-speed Ethernet and Serial ATA interfaces. This ensures that it can easily integrate into existing systems, seamlessly supporting applications that require robust data transfer capabilities. Additionally, the processor is equipped with multiple I/O ports, facilitating the connection of various peripherals and sensors, which is crucial in industrial applications.

One of the standout technologies within the Intel 537EX is its support for hardware virtualization. This feature allows for the creation of multiple virtual environments within a single physical structure, optimizing resource utilization and enhancing system flexibility. Additionally, Intel’s integrated security technologies provide a significant layer of protection against potential threats, ensuring that embedded systems remain secure.

Another characteristic of the Intel 537EX is its extensive software support, which includes compatibility with various operating systems and development environments. This versatility makes it an attractive choice for developers looking to build or upgrade their embedded systems. With access to Intel's comprehensive software tools, developers can quickly optimize applications to take full advantage of the processor's capabilities.

The Intel 537EX also boasts excellent thermal performance, allowing it to operate efficiently in harsh environments. This is crucial for embedded applications in industrial settings where temperature fluctuations are common. Overall, the Intel 537EX is engineered to deliver high-performance processing power, superior connectivity, and enhanced security, solidifying its position as a reliable choice for demanding embedded applications.

Intel 537EX manual How the modem should dial the telephone number, Dial Modifiers, Echo disabled

Models: 537EX

Table 18. Data Mode Command Descriptions (Continued)

Command

how the modem should dial the telephone number.

Dial Modifiers

Dialing Digits

none

previously stored in the NVRAM with the AT&Zn=x command.

string by the time specified in S-register S8.

Flash Hook—causes the modem to go on-hook for 0.75 seconds.

data modem handshake (used for phone directory auto-dialers).

host in either online or off-line command mode.

Echo disabled

Echo enabled

modem to either hang up or pick up the telephone line.

Hang up telephone line (go on-hook)

Pick up telephone line (go off-hook)

Intel Confidential

537EX specifications