Technical reference section

ATD - Dial a telephone number

In order to dial a telephone number, enter the ATD command followed by the number.

Example:

 

 

Enter:

ATD 0199341

GSM module

Dials the telephone number 0199341.

and returns:

CONNECT 2400

As soon as the module detects the carrier for the distant station, it returns the CON- NECT result code. Data transfer can now begin.

Valid dial strings

A dial string comprises digits from "0" to "9" (the telephone number), letters "A" to "C" and the special dialing characters "i","+" and ";".

iThis character must be located between the ATD command and the telephone number (ATDix) and causes the GSM module to switch to ISDN mode for this call.

+This character must be located at the beginning of a dial string and serves to access the international exchange of a GSM network.

Example:

You are in Sweden and wish to set up a connection to Munich.

Dial: ATD+4989<telephone number>

A dial string must contain no more than 30 characters. A longer string will not be dialed.

A command line including the dial string must not exceed 39 characters. Although longer command lines are displayed, they are rejected in their entirety.

Example:

ATD0045890235168338

This dial string comprises 16 characters. The command line on the screen contains 19 characters.

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Siemens M1 manual ATD Dial a telephone number, Atd, Valid dial strings, Dial ATD+4989telephone number, ATD0045890235168338

M1 specifications

The Siemens M1 is a prominent urban transit solution designed for efficient and sustainable public transportation systems. This innovative metro train has become a staple in various metropolitan areas, known for its balance of performance, safety, and passenger comfort.

One of the key features of the Siemens M1 is its modular design, which allows for flexibility in configuration depending on specific transit needs. The train typically consists of multiple carriages that can be adjusted for length and capacity, accommodating different passenger volumes while minimizing operational costs. This adaptability makes the M1 ideal for growing urban environments where ridership numbers can fluctuate.

The Siemens M1 is built with advanced technologies that enhance its operational efficiency. It utilizes a lightweight construction, primarily through the use of aluminum, which reduces energy consumption while still maintaining structural integrity and safety standards. The train is also equipped with cutting-edge traction systems that ensure smooth acceleration and fast braking, resulting in a comfortable ride for passengers.

Safety is a paramount concern in transit systems, and the M1 incorporates various safety technologies. It features advanced signaling systems that enhance communication between trains and trackside equipment. Moreover, the train is designed with anti-collision measures and real-time monitoring systems that can detect faults before they lead to service disruptions.

Passenger comfort is another critical aspect of the Siemens M1 design. The interiors are spacious and feature modern seating arrangements, allowing for easy movement within the train. Large windows provide natural light and views of the outside environment, contributing to a more pleasant travel experience. The train also offers features like climate control, information displays, and accessibility options for passengers with reduced mobility.

Environmental sustainability is an integral part of the Siemens M1’s design. It is tailored to reduce carbon emissions, featuring energy-efficient systems that lower the overall ecological footprint. Additionally, the train can be integrated with renewable energy sources, further promoting green public transport initiatives.

Overall, the Siemens M1 stands out as a versatile and efficient urban transit option, combining modern technology and design principles that cater to the needs of both operators and passengers. With its focus on safety, comfort, and sustainability, the Siemens M1 continues to play a vital role in shaping the future of urban mobility.