Question 1

Where are industrial phones used in real-world environments?

Accepted Answer

Industrial phones are designed for harsh environments where standard communication devices fail. They are commonly used in oil & gas, mining, transportation, and manufacturing for emergency communication and operational coordination.

Question 2

What is the difference between SIP, Analog, and 4G industrial phones?

Accepted Answer

Analog phones connect through traditional telephone lines, SIP phones use VoIP networks, and 4G telephones operate wirelessly using cellular networks, ideal for remote locations without wired infrastructure.

Question 3

Does the phone have a battery backup for non-solar installations?

Accepted Answer

Yes, the 4G phone can have a built-in battery. Due to space limits, the max battery capacity is 6AH, providing 3-5 days of standby time.

Question 4

How long is the power cord? Is it hardwired?

Accepted Answer

Analog phones: The standard power cord is a two-core wire, 3.3 ft (1 m) long. Longer cords are available upon request (over 9.8 ft (3 m) may have an extra fee).
4G phones: The power cord is 1.6 ft (0.5 m), and the antenna cable is 6.6 ft (2 m). Longer power cords are available upon request.

Question 5

How long is the handset cord?

Accepted Answer

LC200 series: Default 32.7 inches (83 cm). Other lengths available upon request.
LC100 series:

Without door cover: 32.7 inches (83 cm).
With door cover: 11.8 inches (30 cm).

Question 6

What certifications do your explosion-proof models have?

Accepted Answer

Our explosion-proof phones are ATEX and IECEx certified:
ATEX: Mainly for the European market.
IECEx: International certification for use in explosive environments, suitable for the global market.

Question 7

Does the phone enclosure with the door stays closed with only a magnet?

Accepted Answer

Yes, a strong magnet keeps the door securely closed while allowing quick emergency access. We also offer optional mechanical locks.

Question 8

Can the SIP phone’s loudspeaker be used for public announcements without lifting the handset?

Accepted Answer

Yes. Let us know before ordering, and we’ll pre-install the necessary software at no extra charge (unless custom features are required).

Question 9

Do you have vandal-proof VoIP phones that support TLS 1.2 encryption?

Accepted Answer

Yes, all our SIP phones support TLS 1.2 encryption.

Question 10

Is the horn for 4G model only used to hear the phone ring? Can we talk and hear the phone call through the speaker inside the enclosure?

Accepted Answer

By default, the external 30W horn is used only to amplify the ringtone for incoming calls. The voice communication is handled through a separate 2W speaker located inside the phone enclosure.
 If you require the entire conversation (both ringtone and voice) to be output through the external horn, a software modification of the 4G phone is required. Please note, this customization will incur an additional fee.

Question 11

For the external intercom terminal with one button, connected via 4G — can I control the door opening using a control relay?

Accepted Answer

The relay can be configured with a relay control command sent during a call using this SMS format:
999#48X#
where X = 0–9 (default is 1).
This means you can control the relay during the call by pressing the programmed digit on your phone.

Question 12

If I connect the phone to a data network switch, is there a way to reserve the connection so that if the network goes down, the phone still works?

Accepted Answer

In this case, we recommend using a SIP phone with a 4G router (like in the picture). It supports both 12V DC and PoE power supply.

Question 13

Do your rugged 4G telephones support Emergency Location Service (ELS) for 911?

Accepted Answer

Our telephones support accurate GNSS-based location positioning (GPS/GLONASS/Galileo/BDS/QZSS), which allows the device to provide geographic coordinates during 911 emergency calls.
 It is important to note that Android Emergency Location Service (ELS) is a feature of Android smartphones with Google Play Services, not of industrial 4G telephones. While our devices do not use Android ELS, they do provide reliable GNSS location data that can be transmitted to emergency services during 911 calls.

Question 14

Which telephone models can be equipped with an induction loop for hearing aid compatibility?

Accepted Answer

The LC200 and LC300 series can be fitted with an induction loop, though some models may need casing modifications, which could add a small fee.
For the LC100 weatherproof series, only hands-free intercoms like LC104-1PB and LC102-1PB have enough space for an induction loop.
The easiest way to find the right solution is to write to us using the contact form at the bottom of any page on our website, mention the model you want to equip with an induction loop, and we will suggest the best option.

Question 15

What can the extra 4 keys on LC207 phones be used for?

Accepted Answer

The extra 4 buttons on the keypad are blank by default and can be configured as speed dial buttons.

Question 16

What is the typical service life in outdoor/semi-outdoor or high-humidity settings?

Accepted Answer

The operating temperature of the phone supports -40˚C to +65˚C (-40˚F to +149˚F), and the IP rating is IP65. If the phone is exposed to the outdoors and rain for a long time, there is a risk of rust and motherboard short circuit. To extend the service life in humid regions, it is recommended to install the phone under a canopy or cover to reduce direct exposure to rain. When installed in breezeways or foyers, with stable power supply and no human damage, the service life can typically reach around 10 years.

Feature	LightCom	Others
Emergency ready	For safety-critical use	Not specialized
Tech support	Full-cycle support	Often limited
System integration (SIP/Analog/4G)	Full support	Limited
Reliability	99.999% uptime	Lower
Customization	High	Limited
Industrial durability	Yes	Often no
Individual Approach	Yes	Often no
3 connection options	Yes	Often no

Rugged Industrial Communication Systems Built for Demanding Environments

Most Demanded Communication Solutions

Industrial Communication System Connection Options

Analog Phone → Analog PBX / PABX

SIP / VoIP Phone → IP PBX

Analog Phone → SIP Gateway → IP PBX

4G LTE Phone → Cellular Network

Why Engineers Specify LightCom Industrial Phones

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