Model: M 50

M50 3G 4G

PTToC Mobile Radio

PTToC is a service that provides push to talk communications via cellular network or Wi-Fi network. Users can make call without distance limits. iCallx provides end to end PTToC solution including portable radio, mobile radio, PTToC platform and dispatch system. M50 mobile radio application scene: Logistics, Taxi, Transportation

Specification M50 3G 4G

Wireless Communications

North America∶

FDD-LTE: B1/B2/B4/B5/B7/B12/B17/B19/B25/B26/B28a/B28b WCDMA: B1/B2/B4/B5
GSM∶ 850/1900 MHz


Frequency Band:



Screen Resolution:


Operating Temperature:


Ingress Protection:

Operating System:

Working Voltage:

4G / 3G / 2G


1.77 inch color display screen

128 * 160 pixels


-20°C +55°C



Android 6.0

13 - 24V


GPS Antenna, Main Antenna, Power Connector, Mounting Bracket, Hand Microphone Bluetooth Earphone (optional), Bluetooth Remote Speaker (optional)

What is the M50 3G and 4G PTToC ?

The M50 3G and 4G PTToC (Push-to-Talk over Cellular) Mobile Radio is a communications device designed for efficient, instant connection. It leverages 3G and 4G network infrastructure to provide robust, reliable two-way communication. 

This device is often used in industries requiring real-time communication, such as logistics, security, and emergency services. With a compact design and easy installation, the M50 offers clear audio quality, GPS tracking, and an intuitive user interface.

What is PTToC (Push-to-Talk over Cellular)?

PTToC (Push-to-Talk over Cellular) is a service that enables instant two-way communication via a cellular network. Comparable to traditional walkie-talkies, PTToC goes beyond limited range by leveraging cellular network infrastructure, thereby providing worldwide coverage. 

It allows a single person to talk to an entire work group or select individuals at the press of a button, making it ideal for industries requiring real-time, efficient communication.


Wide coverage with carrier network

Extend your push to talk service to anywhere with carrier 2G/3G/4G network coverage

Build-in Bluetooth

Easy to access Bluetooth speaker to improve the efficiency

LCD Display

Bring your convenient operation

Build-in WIFI

Connection with WFI network to provide reliable communication with no data cost

GPS positioning

The build-in GPS supports outdoor positioning and dispatching.

Software upgrade via OTA

Easy upgrade the new feature via web management platform

Advanced signaling service

Support radio kill, radio stun, radio revive and radio monitor

Easy installation and maintenance