Display Command

Part 1 – AT Commands for All Universal IP Devices

Chapter 3 – POP3 AT Commands

#POP3UN – Set POP3 User Name

Description: User name for POP3 account. To retrieve email messages sent to a specified email address, the TCP/IP stack software must know the POP3 user name that has been set for that email account.

Syntax: AT#POP3UN="<value>"

AT#POP3UN? Read or display the current setting (or AT#VPOP3, AT#VALL).

Values: Alphanumeric ASCII text string up to 64 characters. No default.

#GETMAIL – Retrieve Host Mail

Description: This command allows the attached host to direct the TCP/IP stack to retrieve the first mail present in the POP3 server list. Once an IP link is established, the attached host can retrieve an email message at any time (except when the TCP/IP stack software is already in a process using TCP resources). This command is similar to a “check email box” feature issued by a standard messaging client on a PC.

Syntax:	AT#GETMAIL
	Command	Possible Responses
	AT#GETMAIL	Ok_Info_Mail
		<mail content>
	Note: Retrieve Notes: This message is issued when one email message is located in the
	mail	specified POP3 mailbox.
		Depending on the #POP3HEADERMODE parameter, the TCP/IP stack
		sends the email header over the serial port to the attached host.
		The (CR)(LF)(.)(CR)(LF) sequence indicates the end of the email body.
	AT#GETMAIL	Ok_Info_NoMail
		Note: There is no email to retrieve in the POP3 mailbox.
	AT#GETMAIL	#CME ERROR: 38027
		Notes: The address of the POP3 server has not been resolved by the
		secondary DNS server.
		TCP/IP stack is not able to reach the primary and secondary DNS
		servers or a wrong POP3 server address has been entered.
	AT#GETMAIL	#CME ERROR: <value>
		Notes: An error has occurred during the communication with the remote POP3
		server. It may also happen during the data transfer after the MAIL
		message. In this case, it is preceded by a (CR)(LF)(.)(CR)(LF)
		sequence.
		This error can be due to one of the following reasons:
		- The DNS servers are not able to resolve the POP3 server address
		- The POP3 server is temporarily out of service
		- The authentication (POP3UN, POP3PW) is not valid

See section ‘Response messages and error codes’.

To view parameters, use #VPOP3

#VPOP3 – POP3 Module Parameters

Description: Directs the TCP/IP stack to display all the AT# parameters related to the email retriever configuration.

Syntax: AT#POP3?

Values: POP3HEADERMODE

POP3PORT

POP3PW

POP3SERV

POP3UN

POP3VERBOSE (for MT810SWM-IP only).

No default

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.