Chapter 5 - AT Commands, S-Registers, and Error Codes

 

 

Defined values

Meaning

<index>

Location value of message to be read

+CMGL

List messages

Syntax

AT+CMGL[=<stat> used to list messages

 

The response is +CMGL: <index>,<stat>,<length>,<CR><LF><pdu>

 

AT+CMGL=? for a list of supported <stat>.

 

The response is +CMGL: (list of supported <stat>)

 

Error codes is returned as +CMS ERROR: <err>:

Description

The AT+CMGL command list messages from the preferred message storage. Entire

 

data units (PDU) is returned.

Defined values Meaning

<stat>

 

4

All messages

+CGSN

Request product serial number identification

Syntax

AT+CGSN used to get phone serial number info. The response is +CGSN: <sn> .

 

Error codes is returned as +CME ERROR: <err>:

Description

The AT+CGSN command returns one ore more lines of information text determined

 

by the phone manufacturer intended to identify the individual phone..

Defined values

Meaning

<sn>

Information text determined by the phone manufacturer.

+CHUP

Hangup call

Syntax

AT+CHUP used hangup GSM call

Description

The AT+CHUP command causes hangup of the current GSM call.

+CMGR

Read message

Syntax

AT+CMGR=<index> used to read a message

 

The response is +CMGR: <stat>,<length><CR><LF><pdu>

 

Error codes is returned as +CMS ERROR: <err>:

Description

The AT+CMGR command reads a message with location value <index> from

 

preferred message storage <mem1> to the TE. Status of the message and the entire

 

message data unit <pdu> is returned.

Defined values

Meaning

<index>

Location value of message to be read

+CMGS

Send message

Syntax

AT+CMGS=<length><CR>PDU is given<ctrl-z>/ESC> used to send messages

 

Error codes is returned as +CMS ERROR: <err>:

Description

The AT+CMGS command sends a message to the network (SMS-SUBMIT).

 

Message reference value <mr> is returned to the TE on successful message

 

delivery. The TA shall send a four character sequence <CR><LF><greater_than>

 

<space> (in hex 0xd 0xa 0x3e 0x20) after the command line is terminated with

 

<CR>; after that PDU can be given. <ctrl-z> (in hex 0x1a) must be used to indicate

 

the ending of PDU

Defined values

Meaning

<length>

Must indicate the number of octets coded in the TP layer data unit to be given.

MTSGSM

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Multi-Tech Systems MTSGSM manual +Cmgl, +Cgsn, +Chup, +Cmgr, +Cmgs

MTSGSM specifications

Multi-Tech Systems MTSGSM is a versatile and robust telecommunications device designed to leverage GSM (Global System for Mobile Communications) technology for various applications, primarily in the field of data communication. The MTSGSM serves as a critical component in enabling remote communication capabilities across multiple sectors, including telecommunications, transportation, utilities, and security.

One of the standout features of the MTSGSM is its ability to provide reliable GSM connectivity, making it an ideal solution for enterprises that require a dependable mobile data connection. The device supports GPRS (General Packet Radio Service) and SMS (Short Message Service), allowing for efficient data transmission and messaging functionality. This dual capability enables businesses to implement a range of applications, from simple remote monitoring to complex machine-to-machine (M2M) communication systems.

In terms of its technological attributes, the MTSGSM is equipped with a powerful embedded processor that ensures high performance and low latency. This processing power enables the device to handle multiple simultaneous connections and data streams, which is vital for applications requiring real-time data exchange such as telemetry, alarm systems, and asset tracking.

Another significant characteristic of the MTSGSM is its modular design, which allows for easy integration into existing systems. The device features a variety of connectivity options, including USB, serial, and Ethernet ports, which facilitate seamless communication with other equipment. This flexibility is crucial for businesses looking to implement GSM technology without overhauling their existing infrastructure.

The MTSGSM is also built with security in mind. It supports various encryption protocols that protect data transmitted over the GSM network. This focus on security is particularly important for industries handling sensitive information, ensuring that data remains secure in transit.

Furthermore, the device is designed for durability and reliability. It operates in a wide temperature range and can withstand harsh environmental conditions, making it suitable for deployment in diverse settings, from remote monitoring stations to urban infrastructure.

In conclusion, Multi-Tech Systems MTSGSM is an essential tool for organizations seeking to harness the power of GSM technology for their communication needs. Its combination of robust features, advanced technology, and security make it a valuable asset for a wide array of applications, ultimately enhancing operational efficiency and connectivity in a rapidly evolving digital landscape.