At#Ipdnsserv

Part 3 – AT Commands for Wi-Fi DevicesChapter 10 – IP AT Commands for the SocketWireless Wi-Fi

#IPNETMASK – Set Subnet Mask

Description:	Sets the subnet mask.
	Note: The module must be reset to put the command into effect.
Syntax:	AT#IPNETMASK="<Subnet Mask value>"
	AT#IPNETMASK? Read or display the current setting.
Values:	IP Address in dotted decimal notation (xxx.xxx.xxx.xxxx). "x" = a number between 0-255.
Default:	255.255.255.0

#IPDNSSERV – Configure the DNS Server

Description: Enables the DNS server. By default, DNS is enabled. Use this command before using DNS services.

Syntax:	AT#IPDNSSERV
Values:	0	- Disables DNS
	1	- Enable DNS
Default:	1	(Enable DNS)

#DNSSERV1 – Set DNS Server IP Address

Note: The module must be reset to put the command into effect.

Syntax: AT#DNSSERV1="<value>"

AT#DNSSERV1? Read or display the current setting.

Values: 32-bit number in dotted-decimal notation (i.e., xxx.xxx.xxx.xxx).

Default: 202.56.215.6

#DNSSERV2 – Set Secondary DNS Server

Description: In order to translate the server names from literal format into IP addresses, the TCP/IP stack software implements the Domain Name System (DNS) protocol. The DNS Server IP address has to be specified for use by the TCP/IP stack software. This secondary DNS server is used in the case where the primary DNS server does not respond to a request.

Syntax: AT#DNSSERV2="<value>"

AT#DNSSERV2? Read or display the current setting.

Values: 32-bit number in dotted-decimal notation (i.e., xxx.xxx.xxx.xxx).

Default: 202.56.230.6

Note: The Universal IP resolver (DNS Client) has a list that holds up to 4 DNS servers, the first 2 in the list are populated by the #DNSSERV1 and #DNSSERV2 commands, the 3rd and 4th are populated by DNS information provided by the ISP or cellular carrier. The list is checked in order (1-4). This means that user configured name servers will be checked before dynamically assigned name servers.

Universal IP AT Commands Reference Guide (Document S000457K)

iCell GPRS (MTSMC-G2-IP specifications

Multi-Tech Systems iCell GPRS (MTSMC-G2-IP) is a versatile and powerful device designed for seamless connectivity in various applications, particularly in industrial and commercial environments. Known for its robust performance, the iCell GPRS module incorporates advanced technologies that enable effective communication over GPRS networks, making it an ideal solution for IoT applications, remote monitoring, and data collection processes.

One of the main features of the iCell GPRS is its dual SIM capability, which enhances network reliability and ensures continuous connectivity even in the event of network outages. By allowing the use of two SIM cards from different carriers, the device can switch between networks automatically, thereby minimizing downtime and maintaining critical communication channels.

The iCell GPRS supports various protocols including TCP/IP, UDP, and MQTT, which facilitates seamless integration with a range of applications. This flexibility in communication protocols allows developers to create customized solutions tailored to their specific needs, ensuring that the device can fit seamlessly into their existing infrastructure.

Another key characteristic of the MTSMC-G2-IP is its compact design and durability, making it suitable for deployment in a variety of environments. It features a wide operating temperature range that allows it to function efficiently in both extreme heat and cold, thereby catering to diverse applications across different industries. Additionally, the device is designed for easy installation and integration, which helps reduce deployment time and costs.

The iCell GPRS also includes built-in security features such as firewalls and secure data transmission protocols, protecting sensitive information from unauthorized access. This is particularly important for applications in sectors such as healthcare, finance, and transportation, where data integrity and security are paramount.

Furthermore, the device is equipped with various I/O ports that facilitate connectivity with external sensors, actuators, and other hardware. This feature makes it highly adaptable for monitoring and control systems, enabling users to gather real-time data and respond promptly to changing conditions.

In sum, the Multi-Tech Systems iCell GPRS (MTSMC-G2-IP) is a reliable and feature-rich solution designed for modern communication needs. Its dual SIM support, protocol versatility, robust design, and integrated security features make it an ideal choice for IoT and remote monitoring applications across numerous industries. Whether used in industrial automation, environmental monitoring, or smart cities, the iCell GPRS stands out as a dependable device that enhances connectivity and operational efficiency.

Multi-Tech Systems iCell GPRS (MTSMC-G2-IP #IPDNSSERV Configure the DNS Server, At#Ipdnsserv

Models: iCell GPRS (MTSMC-G2-IP