Two metal buttons, no dial pad
The interface is two metal buttons; there is no keypad to misread under gloves or in poor light. The call destination is configured remotely, and multiple numbers can sit behind the call button.
PT-IPT4
Emergency intercom
One‑Click Emergency Call Intercom Phone
A one-button emergency intercom for outdoor industrial and public sites, with a 30W loudspeaker, dual indicator lights and SIP, fiber or 4G connectivity.
- One-touch emergency call
- 30W loudspeaker
- SIP, fiber or 4G
- Direct IP calling, no PBX
- Category
- Waterproof
- Environment
- Outdoor
- Mounting
- Wall
- Model
- PT-IPT4
Overview
One button. Immediate contact.
The PT-IPT4 gives staff and visitors a single, obvious way to call for help. Multiple destination numbers can be assigned to the emergency button, and the built-in 30W loudspeaker supports clear hands-free conversation and broadcast announcements.
The composite housing is sealed for outdoor use and can be customized with color and labeling. It connects over SIP, analog, direct fiber or 4G, and supports 24-60V programmable telephone exchanges, network switches and fiber ring networks. Auto-answer lets the control room listen to the site before the caller hangs up.
Capabilities
Key features
One-touch emergency call
A single metal call button dials a preset destination. Multiple numbers can sit behind it, so the call still lands if the first path is busy.
30W loudspeaker
A 30W speaker carries the ring and hands-free voice across traffic, machinery and wind, with a 3W monitor path for talkback.
Indicator lights and beacon
Status lights show the call state, while a caged red beacon above the housing gives the point a visual signature at a distance.
IP65 sealed composite shell
The composite housing closes around a single cable gland and a stainless armored handset cord for outdoor industrial sites.
Auto-answer for the control room
Incoming calls can answer automatically, letting the control room listen and speak while the caller is still at the panel.
SIP, analog, fiber or 4G
Choose the uplink that suits the site — SIP with three accounts and failover, analog, direct fiber or a 4G connection.
Handset or hands-free
The caller can lift the handset for privacy or use the 30W speaker and microphone hands-free while working.
Direct IP calling, no PBX
Two phones can call each other directly by IP address, which suits gate pairs, temporary sites and simple point-to-point links.
Built details
Two buttons. No ambiguity.
The PT-IPT4 takes the keypad out of the emergency call. A sealed composite housing holds a 30W speaker, a handset and two metal buttons; a caged red beacon sits on top. The call destination is configured remotely, and multiple numbers can sit behind the call button. Auto-answer lets the control room listen while the caller is still at the panel. SIP, analog, direct fiber and 4G options connect it to the site network.
A beacon that can be seen before it is heard
The red beacon sits above the housing behind a wire cage. It gives the call point a visual signature in a yard, tunnel or roadside position, while the 30W speaker carries the voice.
Sealed composite shell, one cable entry
The composite housing is sealed to IP65, with a single cable gland at the bottom. The handset hangs on an armored cord, and the face can be labeled for the site. SIP, analog, fiber and 4G options cover the connection.
Every unit is assembled to order. Tell us the site conditions and we will confirm the enclosure, keys and power.
Discuss your siteThe shared platform
One control core. Four kinds of armor.
Waterproof, explosion-proof, cleanroom and intercom phones are not four different phones inside. They share one Allwinner V3s control board and one firmware; the site conditions decide the enclosure, keypad, handset, buttons and beacon around it. Every model can also call another phone directly by IP address, with no PBX in the path.
Front panelkeypad · button · handset
V3sone control board
Same firmwareSIP · marking · alarm · I/O
Your networkDirect IP · IP PBX · IMS
What changes
Waterproof
Sealed composite shells with gasketed doors, caged beacons and armored handset cords. The same board works in a roadside cabinet, a tunnel phone or a solar tower.
- IP65 / IP66 sealed housing, cabinet or post
- Full keypad, two-button or one-button face
- Caged beacon, handset or hands-free audio
Inside every version
Same board. Same firmware. Same menus.
The web interface on a waterproof phone is the same interface on the explosion-proof and cleanroom units. The enclosure changes what the firmware can drive — a beacon here, a relay there, a camera on the door panel. The call flow, paging stack and alarm logic do not change, and two phones can call each other directly by IP address without a PBX or registrar.
- One control coreAllwinner V3s, one board across all four ranges.
- One firmware imageSIP, call handling, marking, broadcast, alarm and I/O.
- One web interfaceThe same menus, status page and provisioning on every model.
- No PBX requiredAny two phones can call each other directly by IP address.
Live status page
Each input, relay, LED and function key reports its state on the home page as it changes.
Paging, alarm and control
More than a dial tone.
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Three SIP accounts
Three independent registrations, each with a primary and backup server, session timer, SRTP option and PCMU / PCMA / G722 / G729 codecs.
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Marking (打点)
Hold a function key and up to eight target phones loop a marking tone; release to stop. A lease timeout stops it if the network breaks.
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Local broadcast
Upload a WAV, choose the trigger and play it through the phone amplifier. An optional dial number, relay and alarm light can fire with it.
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Manual alarm
Trigger a stored alarm WAV over multicast or UDP broadcast. Phones with the same ID play their own copy, so a weak Wi-Fi AP does not block it.
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Multicast
Send live audio to a multicast group for site-wide paging. The status page shows when the channel is active and which group is in use.
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10+ functions per key
Each function key can dial, hotline, mark, multicast, start a local broadcast, fire a relay, raise an alarm, speed-dial, answer or hang up.
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Live I/O status
The home page shows each input, relay, LED and button state as it changes. Outputs can follow ringing, calls, alarms or multicast.
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USB headset
USB headset support with separate microphone gain and volume, alongside handset and hands-free gain settings and selectable ring tones.
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Network and service
VLAN, LLDP, SNMP, NTP, Modbus, OpenVPN, ONVIF / RTSP, action URLs, SIP PnP, config backup, logs and packet capture.
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Direct IP calling
Call another phone by IP address with no PBX, registrar or server in between — useful for two-point links, temporary sites and simple gate, lift or desk pairs.
Where it works
When the weather is part of the job.
Tunnels, docks, car parks and outdoor process areas leave equipment exposed to rain, spray and temperature swings. These models are built around sealed enclosures and protected connections, so the call path stays available when conditions turn.
- Sealed enclosures for wet sites
- Armored handset and cord
- Wall, pole or freestanding mounting
Waterproof
One‑Click Emergency Call Intercom Phone
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