Project Telecom PT103-CB Autodial Outdoor Phone

The Project Telecom PT103-CB Autodial Outdoor Phone is a rugged industrial communication device developed for environments where fast and dependable voice communication is critical.

Featuring straightforward lift-to-call autodial functionality, the PT103-CB automatically connects users to a pre-configured contact when the handset is lifted, making it ideally suited to emergency assistance points, industrial facilities, transport networks and public-access locations. Available with Analogue, SIP or GSM / 4G mobile network connectivity, the PT103-CB can be deployed across conventional telephony systems, IP-based communications platforms or mobile network infrastructures, providing a highly versatile communication solution.

Constructed from corrosion-resistant die-cast aluminium and incorporating an open-access weatherproof design, IP66-rated environmental protection and vandal-resistant construction, the PT103-CB is engineered to provide dependable operation in demanding indoor and outdoor applications. Available in Yellow, Blue, Red and Grey finishes, the telephone can be selected to meet site-specific visibility, safety or aesthetic requirements.

Suitable for manufacturing plants, warehouses, utility facilities, transport hubs, ports, tunnels, marine environments, car parks, construction sites, security installations and public help points, the PT103-CB combines industrial durability with flexible connectivity options for mission-critical communication applications.

Engineered for Harsh Environments

The PT103-CB has been designed for locations where communication equipment may be exposed to adverse weather, dust, moisture, impacts or vandalism. Its heavy-duty die-cast aluminium enclosure and industrial-grade epoxy powder-coated finish provide excellent resistance to corrosion and environmental wear.

Rated to IP66, the enclosure helps protect against dust ingress and water exposure, making it suitable for exposed outdoor installations. Unlike door-equipped weatherproof telephones, the PT103-CB features an open-access design that allows immediate handset access without requiring the user to open a protective cover.

Whether installed in rail networks, industrial plants, utility facilities, tunnels, transport infrastructure, warehouses or public environments, the PT103-CB delivers reliable communications where durability and performance are essential.

Its vandal-resistant construction, reinforced handset cord and robust internal components make it particularly well suited to high-use public locations, remote installations and critical infrastructure applications.

Simple Hotline Operation

Designed for intuitive operation, the PT103-CB eliminates the need for keypad dialling. When the handset is lifted, the telephone automatically places a call to a programmed destination number.

This lift-to-call functionality provides immediate access to security teams, control rooms, help desks, emergency services or site personnel, helping to improve response times while simplifying operation for users.

An integrated inductive coupler is included as standard to assist hearing aid users, while a high-output warble ringer helps ensure incoming calls are clearly audible in noisy industrial and outdoor environments.

Built for Reliable Long-Term Service

Developed for continuous operation in demanding conditions, the PT103-CB combines a corrosion-resistant aluminium housing with a stainless-steel armoured handset cord to provide excellent durability.

With an MTBF exceeding 50,000 hours, the telephone is designed to reduce maintenance requirements while maximising operational availability in critical communication applications.

The electric and magnetic hook switch incorporates no visible moving parts, helping minimise wear and further enhancing long-term reliability.

Connectivity Options

The PT103-CB is available in three connectivity variants, allowing deployment across a wide range of communication infrastructures.

Analogue Version

The analogue model connects directly to standard analogue telephone lines, including PSTN and analogue PABX systems. Powered from the telephone line itself, it provides a straightforward and dependable communication solution for sites operating traditional telephony systems.

The analogue version supports DTMF remote programming, lift-to-call autodial functionality and incoming call capability.

SIP Version

The SIP model connects directly to SIP telephone systems, hosted VoIP platforms and IP-PBX networks through standard Ethernet connections. Supporting SIP 2.0, dual SIP server registration, PoE and browser-based configuration, it provides a scalable communication solution for modern IP telephony environments.

Support for G.711A/u, G.722, G.723.1, G.726 and G.729 codecs, together with echo cancellation, VLAN, DHCP, PPPoE and STUN functionality, delivers enterprise-level voice performance.

GSM / 4G Mobile Network Version

The GSM / 4G variant operates via GSM and 4G LTE mobile networks using a Micro SIM card, making it ideal for locations where fixed telephone lines or network infrastructure are unavailable.

Supporting multiple LTE, WCDMA and GSM frequency bands, the telephone can be remotely configured via SMS and provides status reporting functionality to simplify management and maintenance.

This version is particularly suitable for remote infrastructure, utility installations, transport networks, temporary projects and construction sites.

Available Colour Options

The PT103-CB is available in Yellow, Blue, Red and Grey finishes, allowing the telephone to be matched to site safety requirements, visibility preferences or installation aesthetics.

Features

• Heavy-Duty Outdoor Hotline Telephone for Industrial and Public Applications
• Suitable for Warehouses, Manufacturing Facilities, Utility Sites, Rail Networks, Car Parks, Ports, Airports and Transport Infrastructure
• Lift-to-Call Autodial Operation for Instant Communication
• Available with Analogue, SIP VoIP or GSM / 4G Mobile Network Connectivity
• Open-Access Weatherproof Design for Immediate Handset Access
• IP66-Rated Protection Against Dust and Water Ingress
• Corrosion-Resistant Die-Cast Aluminium Enclosure
• Industrial-Grade Epoxy Powder-Coated Finish
• High-Strength Vandal-Resistant Construction
• Impact-Resistant ABS Handset
• Stainless-Steel Armoured Handset Cord
• Electric and Magnetic Hook Switch with No Exposed Moving Parts
• Full Duplex Voice Communication (SIP Version)
• High Output Warble Ringer for Noisy Environments
• Hearing Aid Compatible Inductive Coupler Included as Standard
• Non-Volatile Memory Retains Settings During Power Loss
• Remote Configuration Capability
• SMS Programming and Status Reporting (GSM / 4G Version)
• Optional Dry Contact Relay Interface Available
• Custom Labelling Options Available on Request
• Tamper-Resistant Mounting Hardware Included
• MTBF Exceeding 50,000 Hours
• CE, FCC and RoHS Compliant
• Available in Yellow, Blue, Red and Grey Finishes

Specifications

Connectivity Options

Analogue Version

• Standard Analogue Telephone Line Interface
• Compatible with PSTN and Analogue PABX Systems
• Lift-to-Call Autodial Functionality
• Supports Incoming Calls
• Remote Programming via DTMF Commands
• Powered Directly from Telephone Line
• MF (Tone) Dialling
• ITU-T K.21 Enhanced Lightning and Surge Protection

SIP Version

• SIP 2.0 (RFC3261) Compliant
• Supports Dual SIP Server Registration
• Full Duplex Audio Communication
• RJ45 WAN Port (10/100Base-T)
• RJ45 LAN Port (10/100Base-T)
• Power over Ethernet (PoE) Support
• Optional 12V–24V DC External Power Input
• Web-Based Configuration and Management
• Compatible with SIP Platforms and IP-PBX Systems
• Supports G.711A/u, G.722, G.723.1, G.726 and G.729 Codecs
• G.168 Echo Cancellation
• DHCP, VLAN, PPPoE and STUN Support
• Bridge Mode Functionality
• SIP Authentication (None, Basic and MD5)

GSM / 4G Version

• GSM and 4G LTE Mobile Network Operation
• Micro SIM Card Support
• LTE FDD - B1 / B3 / B5 / B7 / B8 / B20
• LTE TDD - B38 / B40 / B41
• WCDMA - B1 / B5 / B8
• GSM - B3 / B8
• SMS-Based Remote Programming
• Remote Status Monitoring Capability
• Operating Voltage - 7.4V–12V DC
• Idle Current - 75mA
• Off-Hook Current - 160mA

Construction

• Corrosion-Resistant Die-Cast Aluminium Housing
• Industrial Epoxy Powder-Coated Surface Finish
• Impact-Resistant ABS Handset
• Stainless-Steel Armoured Handset Cord
• Electric / Magnetic Hook Switch
• Tamper-Resistant Mounting Bars and Fixings
• Open-Access Weatherproof Design
• Heavy-Duty Vandal-Resistant Construction

Protection

• IP66 Weatherproof Rating
• EN60529 Compliant
• ITU-T K.21 Enhanced Lightning and Surge Protection (Analogue Model)
• Vandal-Resistant Design

Audio

• High Quality Two-Way Voice Communication
• High Output Warble Ringer
• Approx. 80–90 dBA at 1 Metre (Model Dependent)
• Inductive Coupler for Hearing Aid Compatibility

Environmental

• Operating Temperature: -30°C to +65°C
• Storage Temperature: -40°C to +75°C
• MTBF Greater Than 50,000 Hours

Powering

• Analogue Version - Powered from Telephone Line
• SIP Version: Power over Ethernet or Optional DC Supply
• GSM / 4G Version: Requires 7.4V–12V DC Power Source

Compliance

• CE Certified
• FCC Approved
• RoHS Compliant

Dimensions & Weight

• Dimensions - 204mm x 334mm x 109mm
• Gross Weight - 6kg

Package Contents

• Project Telecom PT103-CB Autodial Outdoor Telephone (Connectivity and Colour Option Selected at Purchase)
• Weatherproof Handset with Stainless-Steel Armoured Cord
• Tamper-Resistant Mounting Kit
• User Documentation