EV8100 VoIP Gateway

Robustel’s EV8100 is an advanced 4G router, VoIP gateway & embedded PC all in one. One of t’s primary application is for use in elevators but EV8100 is finding use in many other applications driven by the shutdown of PSTN networks and the 2G/3G sunsets globally.
Other applications include connecting taxi-callers, warden systems, roadside emergency call, traffic systems, lone worker and general telemetry services.
EV8100 is also Robustel’s first 4G router with an integrated UPS (battery back-up) that allows the device to keep running for up to a day after power loss & send alerts to let operatives know that there has been a power loss event.

  • Key Features
  • Specification
  • Downloads
  • Model

Robustel’s EV8100 can turn voice (and DTMF tones) from ANY analogue phone or dialler into packetised voice using VoIP (SIP) or VoLTE – these options are user selectable. This means any legacy communication system using a PSTN line can be easily transformed into a low cost 4G based solution.


Another reason users need the EV8100 is because of the 2G/3G sunset and removal of CSD (Circuit Switched Data) from cellular networks globally. EV8100 allows users to seamlessly upgrade existing telephone equipment to a modern packet-switched solution.


EV8100 supports Docker for easy deployment of applications and benefits from ‘RobustOS Pro’ – Robustel’s latest Linux Debian bullseye based router OS with enhanced cybersecurity, advanced GUl and a myriad of software features including VPNs, Smart Roaming, SMS remote control and more.


RCMS is Robustel’s free router monitoring service that is fully compatible with the EV8100. lt allows customers to see a location overview of their routers quickly and simply on a map. Features such as data usage, signal strength, current network and much more can then be viewed on a per router basisOver-the-air updates are supported for Firmware, router configuration and Apps serving as essential “insurance” if anything was not quite right during deployment.

You can try Robustel’s free router management platform by signing up here: https://rcms-cloud.robustel.net



  • VoIP and VoLTE supported, VoLTE as a backup voice communication line
  • Battery holder for EN 81-28 and AS1735 compliance
  • Highly stable 4G/3G/2G cellular connectivity with global band coverage
  • High performance compute engine with 8 GB eMMCFlash for running complex customer applications
  • ‘Docker’ containerization supported
  • 1 x RS232, 1 x RS485 +1 x CAN for connection to industrial/legacy devices
  • 4 x DI & 1 x Relay for simple monitoring and control
  • Dual SIM card slots for redundant communications
  • 802.11ac Wi-Fi (optional) supporting AP and Client modes
  • Bluetooth (optional), Bluetooth 5.2 compliant
  • Supports C, C++, Java, Python, Node.js etc. for users to develop their own applications
  • More than 50,000 applications from Debian repository currently available
  • Wireguard/IPsec/OpenVPN/GRE/L2TP/PPTP/DMVPN+ more VPN options
  • Supports RCMS- Robustel’s router/gateway management platform for effective management of large estates of devices
Hardware System
CPU ARM Cortex-A7, 792MHz
Flash 8 GB eMMC


Cellular Interface
Number of antennas 2
Connector SMA-K
SIM 2 x Mini SIM (2FF)


Number of ports 1
Connector 2-pin 5.08mm terminal block
Signal TIP, RING


Ethernet Interface
Ports 2 x RJ45, 10/100Mbps, LAN or WAN, 1 KV magnet isolation protection


Serial Interface
Type 1 x RS232, 1 x RS485 +1 x CAN
Connector 3.5 mm terminal block
ESD protection 8 KV Air, 4 KV Contact
Baud rate 300 bps to 115200 bps for RS232/RS485,

up to 1Mbps for CAN

Signal RS232: TXD, RXD, GND

RS485: A, B, GND



DI/Relay Interface
Number of ports 4 x DI(Wet contact) + 1 x Relay(Dry contact)
Connector 3.5 mm terminal block
Absolute maximum VDC + 30V DC(DI), +40VDC(Relay)
Absolute maximum ADC 100 mA(DI), 300mA(Relay)
Signal definition DI1+, DI1-, DI2+, DI2-, DI3+, DI3-, DI4+, DI4-




WiFi Interface (Optional)
Number of antennas 2
Connector RP-SMA-K
Standards 802.11a/b/g/n/ac, 2 x 2 MIMO, supports AP and Client modes
Frequency bands 2.4 GHz/5 GHz


Bluetooth Interface (Optional)
Number of antennas 1 (Multiplexing Wi-Fi antenna)
Connector RP-SMA-K
Standards Bluetooth 2.1 and 3.0+Enhanced Data Rate (EDR) + Bluetooth 5.2


Reset button 1 x RST
Switch 1 x Battery Switch
USB 1 x USB 2.0 (host), Type A, 5V, 500mA
LED indicators 1 x Battery, 1 x RUN, 1 x Line, 1 x MDM

1 x RSSI, 1 x Cloud, 1 x Device

Watchdog External


1. Battery holder for 2 x 18650 lithium batteries (not included by default).
2. Device is only compatible with 18650 (flat top) type of lithium batteries.
3. lf using a single battery, install it in position 1.
4. Improper installation or use of incorrect batteries may damage the device and void warranty.


Protocols SIP (RFC3261) over UDP, SIPs, SRTP
DTMF In-band, RFC2976, RFC 2833


Software (Basic features of RobustOS Pro)
Network protocols PPP, PPPoE, TCP, UDP, DHCP, ICMP, NAT, HTTP, DNS, NTP,

SMTP, Telnet, HTTPs, ARP, VLAN, SSH2, DDNS, etc.

VPN tunnel IPsec, OpenVPN, GRE, L2TP, PPTP, DMVPN, Wireguard*
Firewall DMZ, anti-DoS, Filtering (lP/Domain name/MAC address), Port Mapping, Access Control
Remote management Web, CLI SMS
Serial port Transparent, TCP Client/Server, UDP, Modbus RTU Gateway
Others Smart Roaming v2*


Operating System RobustOS Pro (Based on Debian 11(bullseye))
Supported programming


C, C++, Python, Java, Node.js, etc.

(for users to develop own applications)

Debian Repository available
Flash available for SDK 6GB
RAM available for SDK 256 MB


App Center (Available Apps for RobustOS Pro)
Apps*  Language, RCMS, etc.

*Request on demand. For more Apps please visit www.robustel.com


Power Supply and Consumption
Connector 2-pin 3.5 mm terminal block with lock
Input voltage 9~30V DC
Power consumption ldle: 4W

Data link: 25W (peak)


Physical Characteristics
Ingress protection IP30
Housing & Weight Plastic, 470g
Dimensions 170 x 150 x 35 mm
Installations Desktop, wall mounting and 35 mm DIN rail mounting

Optional magnetic mounting, the suction iron is a detachable part

Operating temperature -20~+60℃(Without battery)

0 ~ + 45 °C(With battery)

Note: The battery can be charged at 0~35°C

Storage temperature -40 ~ + 85 °C(Without battery)

-20 ~ + 35 °C(With battery for long term)

Relative humidity 5~95% RH


Regulatory and Type Approvals 
Environmental RoHS2.0
EMI EN 55032 Conducted Emission class B

EN 55032 Radiated Emission class B

EMS EN 61000-4-2 (ESD) Level 2

EN 61000-4-3 (RS) Level 3

EN 61000-4-4 (EFT) Level 2

EN 61000-4-5 (Surge) Level 2

EN 61000-4-6 (CS) Level 2


EV8100 Datasheet


EV8100 Hardware Manual


RobustOS Pro Software Manual


*All Robustel Firmware and RobustOS Apps are now available to download from the App Centre section of RCMS Cloud.

If you don’t already have access to RCMS Cloud you can Sign Up  freely.

*Please contact our Technical Support if you have any trouble finding the resources.

Model PN Wi-Fi + BLE Frequency Bands* Country/Region Certification

(*In progress)

EV8100-A-4L-A06GL B126001 4G:LTE FDD:


LTE TDD: B38/B39/B40/B41

3G: UMTS: B1/B2/B4/B5/B6/B8/B19

2G: GSM: B2/B3/B5/B8

Global CE, UKCA, FCC, IC, PTCRB, Verizon*, AT&T
EV8100-B-4L-A06GL B126002 CE, UKCA, FCC, IC, PTCRB, Verizon*, AT&T, NTC*
EV8100-A-4L-A34AU B126003 4G: LTE-FDD:B1/2/3/4/5/7/8/28


3G: WCDMA: B1/2/4/5/8

2G: GSM/EDGE:B2/3/5/8

EV8100-B-4L-A34AU B126004
EV8100-A-4L-A04JP B126005 4G: LTE-FDD:B1/B3/B8/B18/B19/B26



EV8100-B-4L-A04JP B126006
EV8100-A-4L-A12EU B126013 4G: LTE FDD : B1/B3/B7/B8/B20/B28A

LTE TDD : B38/B40/B41

3G: WCDMA: B1/B8


EV8100-B-4L-A12EU B126014

*For more information about frequency bands in different countries, please contact your Robustel sales representative.

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