JR306-SC Roadside highway call box - is Robust and Vandal-Resistant Device. The Roadside highway call box is built for durability and security. Housed in a cold-rolled steel enclosure with a powder-coaconneted body and stainless steel faceplate, it offers high resistance to vandalism and ensures reliable operation in all conditions. The weatherproof and impact-resistant button further enhances its longevity.
Choose from four connection technologies to suit your needs. Select your preferred option when adding the device to your cart.
✅ Analog – Connects to a standard two-wire analog line (FXS). Uses existing infrastructure with power from the line—no extra wiring needed.
✅ VoIP – Connects via SIP over a data network. Powered by PoE or an external source, ideal for modern communication systems.
✅ GSM – Works with any mobile carrier SIM card. No need for landlines or internet, perfect for remote locations.
✅ 4G – Uses 4G LTE for fast, stable communication. No wired infrastructure required, powered externally.
Reliable Emergency Communication
With a high-quality voice transmission system and advanced high-efficiency noise cancellation technology, this call box ensures clear and immediate communication in critical situations. To use, simply press the emergency button, and the pre-programmed security number will be dialed automatically.
Versatile Applications
The Roadside emergency phone is ideal for highway roadside assistance and is also widely used in:
- University and college campuses
- Public streets and squares
- Parking lots and shopping malls
- Police stations and security checkpoints
- Industrial and remote locations
This model ensures high reliability, excellent voice quality, and superior vandal resistance, making it an essential safety solution for public and private spaces.
Available Customizations:
- Body Color: Yellow - standard. Orange, red, gray, green, blue, black, and more under special order (minimum order quantity applies).
- Custom inscription: Personalized text or labels on the phone body.
- Solar Power Option: Available for off-grid installations.
- Built-in a backup battery: the battery capacity supports 3-5 days of standby.
To request customization, please submit your requirements through the Fast Inquiry form at the bottom of each page.
JR306-SC Roadside highway call box (Analog/SIP/Cellular)
J&R 4G Emergency Telephone User Manual
JR300 Series Analog Phone User Manual
JR300 Series VoIP Phone User Manual
Download Product Specs
Key Features
- Standard Versions: Analog, SIP, or GSM/4G telephone
- Robust Housing: Cold-rolled steel, powder-coated for durability
- Vandal Resistance: Stainless steel metal button, impact-resistant construction
- Hands-Free Operation: Full-duplex communication
- Mounting Options: Wall or pillar installation, easy setup
- Weatherproof Protection: Up to IP65 rating for outdoor environments
- Dialing Options: Single or dual-button auto-dial with remote programming
- Power Options:
- Analog Version: Phone line powered for cost-efficient installation
- SIP Version: External power supply or PoE
- 4G Version: External power supply
- Connectivity: RJ45 port for SIP connection
- Certifications: CE, FCC, ISO9001, RoHS compliant
Technical Specifications
Analog Version
Power Supply
- Source: From the analog telephone network
- Voltage: 24 VDC to 65 VDC
- Current: 20 mA DC to 100 mA DC
Audio & Dialing
- Ringer Volume:
- 80 dB(A) at 1 m
- 110 dB(A) at 1 m (with external horn speaker)
- Dialing Method: DTMF mode (ITU-T Q.23 compliant)
SIP Version
Power Supply & Consumption
- Source: PoE or 12V DC
- Consumption:
- Idle: 1.5W
- Active: 1.8W
Communication & Audio
- SIP Protocol: SIP 2.0 (RFC3261)
- Supported Codecs: G.711 A/U, G.722 (8000/16000), G.723, G.729
- Communication Type: Full-duplex
- Ringer Volume:
- 90~95 dB(A) at 1 m
- 110 dB(A) at 1 m (with external horn speaker)
3G/4G Version
Power Supply & Consumption
- Source: 12V DC
- Consumption:
- Idle: 0.3W
- Active: 1.5W
Communication & Audio
- Communication Type: Full-duplex
- Ringer Volume: 90~95 dB(A) at 1 m
Programming & Network
- Remote Programming: By SMS
- Frequency Bands:
- A Version:
- WCDMA/HSDPA 850/1900 MHz
- GSM/GPRS/EDGE 850/900/1800/1900 MHz
- E Version:
- UMTS/HSDPA 900/2100 MHz
- GSM/GPRS/EDGE 850/900/1800/1900 MHz
- J Version:
- UMTS/HSDPA 850(800)/2100 MHz
- GSM/GPRS/EDGE 850/900/1800/1900 MHz
- A Version:
Environmental Conditions
- Protection Rating: IP66 (EN60529 compliant)
- Operating Temperature: -31°F to +158°F (-35°C to +70°C)
- Storage Temperature: -40°F to +185°F (-40°C to +85°C)
Physical Dimensions & Packaging
- Unit Size: 11.85 x 7.09 x 4.72 in (301 x 180 x 120 mm)
- Carton Size: 7.87 x 11.81 x 17.32 in (200 x 300 x 440 mm)
- Packaging Materials: Pearl cotton, carton
- Net Weight: 11 lbs (5 kg)
- Gross Weight: 13.2 lbs (6 kg)
