AT Command Set

2.6ATD><mem><n> Originate call to phone number <n> in memory <mem>

This command allows you to dial a phone number from a specific phonebook. To initiate a call, enter a two letter abbreviation for the phonebook <mem>, followed by the memory location <n> of the de- sired entry. The location range of each phonebook can be queried by AT+CPBR (see Chapter 4.32).

Execute command

ATD><mem>

<n>[<mgsm>][;]

TA attempts to set up an outgoing call to the specified number.

Note: This command may be aborted generally by receiving a character during execution. Abortion is not possible during some states of connection setup such as handshaking.

Response

If error is related to ME functionality:

+CME ERROR: <err>

If no dialtone (parameter setting ATX2 or ATX4):

NO DIALTONE

If busy (parameter setting ATX3 or ATX4):

BUSY

If connection cannot be set up:

NO CARRIER

If successfully connected and non-voice call: CONNECT<text> TA switches to data state.

Note: <text> output only if +ATX parameter setting with value > 0.

When TA returns to command mode after call release:

OK

If successfully connected and voice call:

OK

Parameter

<mem> phonebook:

 

"SM”

SIM phonebook (storage depending on SIM card)

 

”FD”

SIM

fixdialling phonebook (pos. 1-7)

 

”LD”

SIM

last-dialling-phonebook (usually the last 10 numbers di-

 

 

aled are stored on the SIM card, no matter whether or not the

 

 

calls were successfully set up)

 

”MC”

ME missed (unanswered received) calls list (up to 10 numbers)

 

”RC”

SIM received calls list

 

”ME”

ME Phonebook (up to 50 numbers)

 

”ON”

SIM (or ME) own numbers (MSISDNs) list

 

Note: <mem> must be included in quotation marks (""), if parameter

 

 

<mgsm> is used. If not, quotation marks are optional.

<n>

Integer type memory location in the range of locations available in

 

the selected memory, i.e. the index number returned by AT+CPBR.

<mgsm>

I

Activates CLIR (disables presentation of own phone number to

 

 

called party)

 

i

Deactivates CLIR (enables presentation of own phone number

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Siemens MC35 manual ATDmemn Originate call to phone number n in memory mem, +CME Error err, Sim, Mgsm
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MC35 specifications

The Siemens MC35 is a compact and versatile modem designed primarily for mobile communication, data transmission, and machine-to-machine (M2M) applications. Launched in the early 2000s, it quickly became popular due to its blend of performance, reliability, and ease of integration, making it a solid choice for developers and businesses.

One of the key features of the MC35 is its support for GSM and GPRS technologies. This allows it to connect seamlessly to various networks, enabling users to transmit data at speeds that were impressive for its time. The GPRS capability can offer data rates of up to 171.2 kbps, allowing for efficient data transfer even in areas with limited connectivity.

The MC35 is designed to support both SMS and voice functionalities, making it adaptable for a range of applications. This includes remote monitoring, telemetry, and alarm signaling. The ability to send and receive SMS messages is a significant advantage for applications that require immediate alerts and notifications, enhancing its utility in security systems and industrial automation.

Furthermore, the modem is equipped with a range of interfaces, including serial communication (RS232), which makes it compatible with various hardware devices. This facilitates easy integration into existing systems, whether for industrial machinery or consumer electronics. Additionally, it features a robust software development kit (SDK), which enables developers to create custom applications tailored to their specific requirements.

Power consumption is another notable characteristic of the Siemens MC35. It is engineered to be energy-efficient, which is especially important for battery-operated devices or systems that require a prolonged operation without frequent recharging or maintenance.

In terms of physical characteristics, the MC35 is compact and lightweight, allowing it to fit into various enclosure designs without occupying much space. Its durability ensures it can perform reliably in different environments, making it suitable for outdoor and industrial applications.

To summarize, the Siemens MC35 stands out as a reliable modem with a rich feature set that includes GSM and GPRS support, SMS and voice capabilities, easy integration through various interface options, and energy-efficient operation. Its adaptability makes it a valuable tool for a wide array of communication and data transmission tasks, solidifying its place in the evolution of mobile communications technology.
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