IP Transceiver

IP503H Lite

You Can Talk and Listen at the Same Time
Full-Duplex, Dual SIM IP Radio

Instant Wide Area Coverage Over an LTE/3G Network

It provides wide area communication using a cellular network.*

* Network coverage provided by a generally available data SIM card. Radio registration is required separately.

Simultaneous TalkListen Function for Full-Duplex Communication

The Simultaneous TalkListen function provides full-duplex one-to-many communication which users can talk and receive at the same time like a telephone style conversation.

Dual SIM Capability for Communication Redundancy

Two different SIM cards can be installed. Switch between them as required.*

* Single standby only

Multiple User Communication

Multiple users in the call groups can initiate calls instantaneously.

Priority Interrupt Calling

You can break into an on-going call to transmit an important message.

Industry Leading Compact and Lightweight Design

IP67 Dust-Tight and Waterproof

900 mW Powerful and Clear Audio

Other Features

  • Individual, Group, Talkgroup, Multiplex Talkgroup and All calls*
  • Emergency button, Lone Worker and Man Down functions
  • Vibration alert function notifies of incoming call
  • Up to 500 memory address book(including Group, Individual, Talkgroup and Telephone lists)
  • Voice message recording
  • Built-in Bluetooth. capability and GPS

* Depending on system configuration

VE-SP1, Just Slot in the IP503H Lite and Start a Voice Conference

  • Portable operation with LR6 (AA)×8 cells
  • Built-in loudspeaker and high sensitivity microphone
  • Charges the radio while using with the AC adapter
  • Great as a teleworking type solution

* The transceiver is not supplied.

Note for IP503H users

The IP503H Lite (front panel is blue) uses a generally available data SIM card and is controlled by the IP4000C system.
The IP503H Lite is not compatible with IP503H radios (black front panel) which use a closed network provided by custom Icom SIM card.

Network EXP

LTE B1, B3, B7, B8, B20

AUS LTE B1, B3, B5, B7, B8, B28
(W × H × D; Projections not included)
59 × 95 × 32 mm; 2.3 × 3.7 × 1.3 in
(with BP-272)
Weight (approx.) 240 g; 8.5 oz
(with BP-272 and antenna)
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
Operating time
(TX : RX : standby = 5 : 5 : 90)
More than 17 hours (with BP-272)
Bluetooth Ver 2.1 +EDR
GPS Built-in
Operating temperature –10 °C to +60 °C; +14 °F to +140 °F
IP rating

IP67 (dust-tight and waterproof)
IP55/54 (dust and water jet / water resistance)

* Operating time may differ depending on operating environments.
All stated specifications are subject to change without notice or obligation.

Applicable U.S. Military Specifications

MIL 810 G
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

Catalogs / Brochures

Brochures Name Size
IP503H Lite 1.15MB

Instruction Manual / Guides

Name Model Name Note