The BT25 Sound and Light Broadcasting Telephone is a rugged wall-mounted communication terminal designed for industrial sites where ordinary telephones cannot deliver reliable performance. It is built for high-noise, high-dust, humid, outdoor, and semi-outdoor environments where clear calling, strong audible alerting, and visible warning signals are essential for daily dispatching and emergency response.
As a wall-mounted industrial telephone, the BT25 saves floor space, keeps the communication point fixed in a visible location, and allows workers to quickly identify and access the device in tunnels, workshops, ports, mines, utility corridors, and production areas. Its integrated horn speaker and LED strobe light make it more than a simple telephone: it works as a calling terminal, alerting device, broadcasting point, and emergency communication endpoint in one compact unit.
The BT25 is designed with a molded wall-mounted body structure, a composite new-material housing, imported cold-rolled steel front panel, and industrial-grade components. This structure improves impact resistance, installation stability, and long-term durability in demanding locations.
The wall-mounted design is especially suitable for fixed communication points in industrial passages, control zones, equipment rooms, tunnel walls, platform areas, and outdoor working sections. Compared with desktop or portable devices, a wall-mounted telephone can be easier to find, harder to misplace, and more suitable for emergency call access in a defined operating area.
The BT25 integrates a 30W horn speaker and built-in LED flashing light into one unit. When an incoming call arrives, the horn speaker amplifies the ringtone while the LED strobe flashes, creating both audible and visual alerts. This dual reminder helps reduce missed calls in noisy construction sites, plants, tunnels, mines, and port environments.
This all-in-one design also simplifies installation. Traditional amplified telephone systems often require the telephone, external speaker, and warning light to be installed separately. BT25 combines these elements into a single wall-mounted terminal, helping reduce wiring complexity, installation time, and maintenance workload.
The BT25 can be configured with SIP network communication or analog telephone communication, allowing it to match different site requirements. SIP mode is suitable for modern IP PBX, dispatching, paging, and unified communication systems, while analog mode can be used in projects that still rely on traditional telephone lines or analog exchange systems.
This flexibility makes BT25 suitable for both new communication system deployments and retrofit projects. It can be installed as part of a larger industrial telephone network, emergency dispatch system, tunnel communication solution, or site-wide voice broadcasting system.
After an incoming call is answered automatically, the caller can broadcast voice instructions through the 30W horn speaker to the surrounding area. This is useful when supervisors, control rooms, or dispatch centers need to issue safety notices, work instructions, or urgent warnings to nearby personnel without waiting for someone to pick up the handset.
The device also supports two-way communication through its intercom function. Workers can use the talk button to communicate back with the caller, enabling both one-way public addressing and practical two-way voice interaction from the same terminal.
In high-noise environments, a standard telephone ring may be difficult to hear. BT25 solves this problem by linking the incoming call signal with both horn speaker ringing and LED strobe flashing. The result is a stronger alert that can be noticed by workers even when machinery, vehicles, ventilation systems, or production equipment create continuous background noise.
The 30W horn speaker provides high-volume audio output for wide-area ringing and broadcast coverage, while the LED warning light improves visibility in workshops, tunnels, equipment zones, and outdoor areas where hearing alone may not be enough.
BT25 includes an intelligent incoming call processing function. The system counts incoming rings and can automatically answer the call after the factory-set number of rings, typically after 3 to 5 rings. Once connected, the calling party can immediately speak through the horn speaker for broadcast paging.
This function is valuable when no operator is standing next to the telephone, but the control room still needs to deliver time-sensitive instructions. It helps avoid missed calls and supports faster communication during urgent or high-workload situations.
After the call ends, BT25 can detect the busy tone and automatically hang up. This reduces the need for manual operation and helps keep the terminal ready for the next call. In unattended or semi-attended industrial areas, automatic hang-up improves communication efficiency and reduces the risk of lines remaining occupied.
The telephone body uses a composite new-material housing with an imported cold-rolled steel panel. The molded structure helps protect the internal communication components from physical impact, harsh handling, and challenging operating conditions.
This rugged construction makes the device suitable for industrial sites where vibration, dust, moisture, accidental impact, and temperature variation may affect normal communication equipment.
BT25 reaches IP65 protection level, helping protect the device against dust and water ingress. It is designed for waterproof, moisture-resistant, dustproof, and anti-freezing performance in demanding industrial and outdoor environments.
The device can be used in humid sites such as underground utility tunnels, ports, docks, offshore-related facilities, and other environments exposed to moisture or salt mist. Its weatherproof construction helps support stable long-term operation where ordinary telephones may fail.
BT25 supports pre-stored number dialing, allowing the device to call a predefined control room, dispatch center, emergency desk, or management office. This makes it easier for on-site personnel to contact the correct department quickly during operational issues or emergencies.
When integrated into a site communication system, pre-stored dialing can simplify user operation, shorten response time, and reduce errors caused by manually dialing long numbers in stressful or noisy environments.
BT25 is suitable for metro tunnels, high-speed railway tunnels, highway tunnels, and urban underground utility corridors. These environments often require reliable wall-mounted communication points for maintenance, emergency reporting, dispatch coordination, and public safety operations.
The combination of IP65 protection, strong audible alerting, LED flashing, and automatic answer makes the device practical for long corridors and enclosed spaces where humidity, echo, background noise, and limited visibility can make ordinary communication difficult.
In mines, metal mining areas, coal mine facilities, power plants, substations, steel mills, chemical plants, and coal preparation plants, communication devices must remain stable under dust, noise, vibration, and demanding operating schedules. BT25 provides a fixed wall-mounted calling point that can support both routine dispatching and urgent announcements.
The 30W horn speaker helps deliver clear audio instructions across noisy spaces, while the LED strobe light increases the chance that workers notice incoming calls or alerts even when wearing protective equipment or working near loud machinery.
BT25 can also be deployed in ports, docks, ship-related work areas, oilfields, outdoor industrial yards, and other weather-exposed locations. These places often require communication devices that can handle moisture, salt mist, wind, dust, and changing temperatures.
The integrated wall-mounted structure helps create a reliable fixed communication node for command centers, site supervisors, maintenance teams, and emergency response personnel.
| Advantage | Description |
|---|---|
| Environmental Adaptability | IP65 protection supports waterproof, moisture-resistant, dustproof, and anti-freezing operation in harsh industrial environments. |
| Rugged Anti-Damage Structure | Composite new-material body and imported cold-rolled steel panel help resist physical impact and vandal damage. |
| High-Volume Audio Coverage | 30W horn speaker provides strong sound output for large spaces and high-noise sites. |
| Sound and Light Alerting | Incoming calls trigger amplified ringing and LED flashing to improve alert recognition. |
| Smart Automation | Supports ring detection, automatic answer, broadcast calling, and busy tone automatic hang-up. |
| Easy Installation | Integrated wall-mounted design reduces separate installation of telephone, speaker, and warning light. |
| Flexible Communication Mode | Available with SIP or analog communication mode to fit different project architectures. |
A wall-mounted telephone provides a clear and permanent communication point. In industrial emergency communication, this matters because users must quickly find the device during abnormal events, equipment failure, safety warnings, or maintenance operations. A fixed installation also makes system planning, cable routing, labeling, and routine inspection easier.
For sites with strict safety procedures, wall-mounted telephones can be installed at entrances, tunnel intervals, work platforms, equipment zones, and emergency exits, helping workers contact the control room or receive broadcast instructions without searching for portable devices.
Compared with ordinary office phones, an industrial wall-mounted telephone is built for rougher conditions. The BT25 adds weatherproof protection, a rugged housing, a high-power horn speaker, visual flashing alerts, and automation functions that help it perform in locations where normal telephones are not suitable.
This makes BT25 a practical choice for projects that need dependable communication in noise, dust, moisture, and outdoor exposure.
Becke Telcom can integrate wall-mounted industrial telephones like BT25 with SIP servers, IP PBX platforms, dispatch consoles, paging systems, industrial intercoms, gateways, and emergency communication solutions. This helps build a complete communication network from field endpoints to the control room.
In SIP-based projects, BT25 can become part of a converged communication platform that combines calling, paging, emergency response, dispatch coordination, and site-wide voice notification. In analog projects, it can also support traditional telephony infrastructure while preserving essential industrial communication functions.
For tunnels, utility corridors, mines, factories, ports, and outdoor industrial sites, BT25 provides a compact way to combine wall-mounted telephone access, high-volume broadcasting, flashing warning, and automated call handling. It helps improve communication visibility, response speed, and operational safety in locations where every missed call or delayed instruction may matter.
BT25 is designed for industrial sites that need more than a telephone. It provides a fixed wall-mounted communication point with sound and light alerting, broadcast paging, and reliable weatherproof protection.
BT25 is used for industrial voice communication, incoming call alerting, broadcast paging, and emergency communication in harsh environments such as tunnels, mines, factories, ports, docks, utility corridors, and outdoor industrial areas.
Yes. BT25 can be configured with SIP network communication. It can also be supplied with analog communication mode depending on the project requirement and existing communication infrastructure.
The 30W horn speaker amplifies incoming ringing and broadcast voice messages, helping workers hear calls and instructions in high-noise industrial environments.
The LED strobe light provides a visual incoming call reminder. It is especially useful in noisy areas, large spaces, or work zones where workers may not hear a normal ringtone clearly.
Yes. The device can count incoming rings and automatically answer after the factory-set number of rings, typically after 3 to 5 rings. This allows the caller to broadcast voice messages through the horn speaker.
BT25 has IP65 weatherproof protection and is designed for waterproof, moisture-resistant, dustproof, and anti-freezing performance. It can be used in many outdoor and semi-outdoor industrial environments, depending on project installation conditions.
| Parameter | Specification |
|---|---|
| Product Model | BKTS2 |
| Device Type | Waterproof Audio-Visual Amplified Paging Telephone |
| Protection Rating | IP65 (GB/T 4208-2017) |
| Speaker Power | 30W Horn Speaker |
| Dimensions | 300×180×140mm (H×W×D) |
| Weight | 5kg |
| Communication Mode | Analog / SIP Network Protocol Optional |
| Housing Material | Engineering Composite Material + Imported Cold-Rolled Steel Panel |
| Mounting Method | Wall-Mounted (Fixed by Screws / Bracket) |
| Signature Color | Industrial Outdoor Yellow (Weather-Resistant Coating) |
