

Instant Communication Across North and Latin America,
Seamless Push-to-Talk Solution with LTE Technology
The IP504H utilizes LTE (4G) networks to provide instant push-to-talk communication with voice and data across North and Latin America. It combines the wide coverage and convenience of LTE technology with the reliable functionality of traditional two-way radios. Designed to operate on an Icom-controlled, private and secure server network, the IP504H offers a simple solution that eliminates the need for radio licensing. Additionally, the advanced RoIP gateway, VE-PG4 connects and integrates various new and legacy technologies to LTE solutions, making it a versatile choice for seamless communication.
Push-to-Talk Solution Across North and Latin America

The IP504H is an advanced LTE IP transceiver that enables instant communication through push-to-talk functionality, utilizing the reliable infrastructure of a mobile carrier network. Wherever you or your team are located *—simply press the PTT button to start a conversation.
The IP504H ensures your communication remains secure and of superior quality. By operating on a closed network system and using our custom SIM card, it ensures greater privacy and service reliability compared to open network systems.
Within the carrier’s coverage area. Network coverage is provided in USA, Canada, Mexico and select Latin America countries by a custom SIM card. Contact us for specific country coverage details.
Simultaneous TalkListen Function for Full-Duplex Communication
The Simultaneous TalkListen allows seamless two-way communication, just like a phone call. Whether it's a one-on-one conversation or a group call, you can talk and listen at the same time without worrying about transmission timing, unlike traditional transceivers.
Simultaneous TalkListen – Never Miss a Critical Call with TalkListen
Powerful and Clear Audio
The IP504H delivers 900 mW of loud, clear audio through its internal speaker—double the output of the previous model, IP501H. When paired with the optional speaker-microphone, HM-222HLS, it maintains robust volume levels, ensuring you will not miss a call, even in noisy environments.


Compact, Durable, and Long-Lasting Battery

Despite its compact design, the IP504H features an IP67-rated dust-tight and waterproof construction, capable of withstanding submersion in water for up to 30 minutes. It’s perfect for use around water, whether in kitchens or outdoor work environments, even in harsh weather conditions. The supplied Li-ion battery pack delivers over 15 hours of operation with a 5:5:90 duty cycle, ensuring reliable performance throughout your day.
Emergency Features to Enhance User Safety

The IP504H is equipped with an emergency button, Man Down, and Lone Worker functions, allowing it to automatically send an emergency call to a dispatcher or coworker in case of an incident. Additionally, the built-in GPS enables location tracking, always ensuring safety for users.
Bluetooth® Capability for Wireless Operation

When using the radio in a vehicle, you can operate it conveniently with a dash-mounted microphone*, even while keeping the IP504H clipped to your clothing or belt. Additionally, the optional VS-3 Bluetooth® headset allows for seamless wireless operation, providing flexibility and ease of use.
Optional HM-215 microphone and BC-218 charger cradle with Bluetooth® capability are required.
Other Features
- Vibration alert function notifies of incoming call
- Voice record and playback function
- Text message reception and preprogrammed message transmission
- Up to 500 memory addresses (including Group, Individual, Talkgroup and Telephone lists)
- Dual SIM capability
- Active noise cancelling function reduces background noise
- Optional VE-SP1, portable speaker-phone for multi-site voice conference

RoIP Gateway to Link to Other Systems
With the VE-PG4 RoIP gateway, the IP504H series can interconnect with an IP phone and various radio systems including Wi-Fi radio, satellite PTT, LTE, IDAS™ and analog radios.

Case Studies
Network | 4G bands | FD-LTE B2, B4, B5, B12, B13, B14, B25, B26, B66, B71 |
---|---|---|
Dimensions (W × H × D; Projections not included) |
59 × 95 × 32 mm; 2.3 × 3.7 × 1.3 in (with BP-272) |
|
Weight (approx.) | 250 g, 8.8 oz (with BP-272 and antenna) |
|
Power supply | 7.4 V (with BP-272) | |
Voice Codec | G.726 (32 kbps) | |
AF output power (8 Ω at 10% distortion) |
Internal SP | More than 900 mW |
External SP | More than 200 mW More than 800 mW (with HM-222HLS) |
|
Operating time*1 (5:5:90 duty cycle.) | More than 15 hours (with BP-272) More than 22 hours (with BP-307, option) |
|
Bluetooth | Ver 2.1 +EDR | |
GPS | Built-in | |
Operating temperature | –10 °C to +60 °C; +14 °F to +140 °F | |
Humidity | Less than 25 ~ 85% (Without condensation) | |
IP rating | IP67 (dust-tight and immersion) IP55/54 (dust and water jet / water resistance) |
*1 Operating time may differ depending on operating environments.
All stated specifications are subject to change without notice or obligation.
Applicable U.S. Military Specifications
Standard |
MIL-810 G | |
---|---|---|
Method | Procedure | |
Low Pressure | 500.5 | I, II |
High Temperature | 501.5 | I, II |
Low Temperature | 502.5 | I, II |
Temperature Shock | 503.5 | I-C |
Solar Radiation | 505.5 | I |
Rain Blowing/Drip | 506.5 | I, III |
Dust Blowing | 510.5 | I |
Immersion | 512.5 | I |
Vibration | 514.6 | I |
Shock | 516.6 | I, IV |
Also meets equivalent MIL-STD-810 -C, -D, -E and -F.
Supplied Accessories
- BP-272 Li-ion battery pack
- MB-135 belt clip
- Hand strap
- Antenna
MICROPHONES
HEADSETS
PTT/VOX CABLES
CHARGERS
AC ADAPTERS
POWER SUPPLY CABLES
MOUNTING BRACKETS
BELT CLIPS
CARRYING CASES
ADAPTER CABLES
Catalogs / Brochures
Brochures Name | Size |
---|---|
IP504H | 1.22MB |
Instruction Manual / Guides
Name | Model Name | Note |
---|---|---|
INSTRUCTION MANUAL | IP501H/IP503H/504H |
Icom Solutions for Utilities (LTE, Hybrid and Satellite Transceivers)



Ingress Protection (IP) Code
Ingress Protection (IP) ratings define the level of protection provided by enclosures to prevent the ingress of foreign objects (dust) and liquid into the electrical equipment.
International Standard IEC 60529 outlines an international classification system that describes the sealing characteristics of electrical equipment.
The classification system uses the “IP” code, or “Ingress Protection” code, to define the level of seal.
An IP number contains two numbers (i.e. IP67) in most instances which relate to the level of protection provided by an enclosure or housing.
Either number may be shown as “X” (i.e. IPX6 / IP7X) to indicate the “X” part is not tested.


Degrees of Solid Particle Protection – 1st Digit
IP6x | No ingress of dust; complete protection against contact. (Dust tight) |
---|---|
IP5x | Protected from the amount of dust that would interfere with normal operation. (Dust protected) |
Degrees of Liquid Ingress Protection – 2nd Digit
IPx8 | Protected against continuous immersion in water. Depth and duration specified by model. |
---|---|
IPx7 | Protected against temporary immersion in water for 1 m (3.3 ft) for 30 minutes |
IPx6 | Protected against water projected by powerful jets from any direction. 100 L per minute by a powerful jets (12.5 mm) for 3 minutes. |
IPx5 | Protected against water projected by jets from any direction. 12.5 L per minute by a nozzle (6.3 mm) for 3 minutes. |
IPx4 | Protected against water splashed against the equipment from any direction |
