Model: ST-RoIP4


Radio Over IP Network Gateway

The ST-RoIP4 Series Standalone RoIP Gateway is the next generation radio over IP gateway. It is designed to interconnect PTToC platforms with any radio systems including conventional trunked analog FM, ETSI DMR, ETSI TETRA, APCO P25 FDMA, NXDN.

Specification Solidtronic


Power Supply:

Power Consumption:




Control Buttons:

Pre-installed Communication App:

Carrier Detect Activation Time:

Digital Interoperability Stabilizer:



AC Adapter:


600mA (Typical)

0/100 Base-T


4.3 inch Touch Screen LCD


iCallx Press2Talk

<0.2 Second

0.5 Second(OFF) or 2 Seconds(ON) selectable

160(W) x 100(D) x 40(H) mm

450 g

Input AC100-240V, Output DC5V 2A

What is a Radio Over IP Network Gateway?

A Radio Over IP Network Gateway is an advanced technological tool that facilitates the connection between traditional two-way radio systems and IP networks. This allows radio communications to be transmitted over the internet or any other IP network, thereby expanding the communication range significantly. 

Compared to conventional radio communication that is limited by geographical barriers and distance, Radio Over IP Network Gateway enables long-distance and even global communication with ease. 

Push-to-Talk Over Cellular (PTToC) and Radio Over IP Network Gateway 

Push-to-Talk Over Cellular (PTToC) is a modern communication technology that allows individuals to use their cellular devices, such as smartphones and tablets, to communicate over a radio network with just a single button press. 

PTToC is an essential feature of the Radio Over IP Network Gateway, bridging the gap between traditional two-way radio systems and cellular communication devices. This integration means that users can utilize their smartphones, tablets, or other cellular devices to communicate over the radio network, all with the push of a button. 

It not only makes radio communication more accessible to a wider range of devices, but it also extends the reach of communication to anywhere with an internet connection, bypassing the limitations of traditional radio frequency range. Consequently, this technology significantly enhances the flexibility and convenience of communication for businesses and public service organizations, improving their response times and operational efficiency.


Stable Bandwidth 10/100-Base-T Ethernet Connection

End of Transmission Roger Beep Alert for Radio Channel

ADF-2 to support 2-Way Radio Repeater System

Embedded Android 4.0.3 OS

Pre-installed Press2Talk app

Support different brands and different type radios


Build-in ARM CPU standalone Radio-over-IP Network Gateway

Install in a second, no IT expert technique is required

PTToC-COS/COR PTT Control Technology

Very easy operation

Radio-COS/COR PTT Control Technology

Very fast and stable PTT exchange performance by Super Dynamic iDats-4 PTT Control Technology

User Manual