Licensed Exporter

New Release!!! 1000 User Smart PABX Desktop Digital Wireless Intercom systems ISM1600H4/A:

           We are  introducing wireless, ISM BAND 900Mhz Wireless Intercom systems, which works in world open band . It is just like an ordinary WLL phone but do not require any SIM card or subscription or rental. And do not require any mobile tower / central exchange / PBX box /Router/ central box.  But it will simply work as a private WLL network. Expandable up to 1000 phone any time. Also compactable with our 900Mhz Mobile wireless intercom model ISM1600H3. You can dial and communicate between intercom or our ISM1600H3 Mobile wireless intercom  up to  1000 extensions.  No need any Installation, Just plug to your 90~250V Power outlet and use.  Each of the phone will have dialing facility of numbers like 1~ 999999999 (up to 9 digit). It works just like normal Land telephone. And also you can change/program the numbers as your requirement.  Hear the dial tone by lifting the handset and dial required intercom number. Then you can hear the ring back tone, only if the dialed number is ringing and when the person Lifting handset or press "Green" button (Talk) (If mobile model ISM1600H3) you can communicate each other.  Or you can interrupt/stop ring from your handset and speak directly to receiver mobile handset  via speaker phone. This wireless intercom is using Encrypted Adaptive Frequency Hopping Technology. Hence it has super Anti-Jamming capability and also that nobody can't tap your conversation. It is also possible for 250 people to communicate at a time without any  cross taking or mingling. It has a Range of about 300m~1000m without any cabling. 4000m range with Yagi Antenna. Broadcasting facility also available for School /College application. Then principal can toggle Ring or broadcast his announcement to all class room or some selective class room at a time wirelessly.

Ideal for : Hotels, School/College, Villas, apt, Apartment flats, Multistory house, Multistory Building, Lodges, Works site, Hospitals, Banks, Factories, with in Ship, Cruiser, Boat,  with in Vehicles, Houses to Shops, Houses to Offices, Shops to Godown etc.

Brochure downloadManual download | ■ Youtube:

 900Mhz ISM Band Wireless Intercom up to 1000 Stations ■  Compactable with our 900Mhz Mobile model ISM1600H3 Wireless Intercom ■   No PBX Box No Central Exchange No Mobile tower required No SIM Card No  Subscription  No Rental No any Wire Long Range 300m ~ 1Km ■  4Km with YAGI Antenna Encrypted Adaptive Frequency Hopping Technology Super Anti-Jamming Capability Full Duplex communication Key Tone, Dial Tone, Ring Back Tone  facility for easy use  Broadcasting Facility Paging facility for direct announcement Selectable Ring Tone Light weight phone World wide universal mini USB adapter usable ■ 1.5W Audio out for external speaker application ■  High Quality Electronic Circuit 3.7V / 1000mAh Battery  ■ One Year Warrantee Door Phone model also Available

ISM1600H4 This model don't have any External Antenna (It will also work as Master Phone in Master and Slave Intercom System)
ISM1600H4 Range 70~400m.
with in India Price: Rs 3,850.00 each one
Outside India
Price USD72.00

ISM1600H4A The external Antenna must fix out side of building or windows and closer side to other phone antenna. Antenna have magnetic base so that you can stick it on any iron material. You can also use this model as Lift / Elevator Intercom (It will also work as Master Phone in Master and Slave Intercom System). Please look Installation diagram of Lift/Elevator Intercom
ISM1600H4A Range 200~1000m. With in India Price: Rs 4,999.00 for each one
Outside India
Price USD90.00 for each one

ISM1600H4 It is Slave Phone in Master and Slave Intercom System. Slave to Master (ISM1600H4) and Master to Slave communication Possible, But Slave to Slave communication Not possible.
ISM900 Slave Phone Range 70~400m.
with in India Price: Rs 2,500.00 each one
Outside India
Price USD40.00

Two station Digital wireless Intercom

1000 user Digital Mobile Intercom  

1000 User Digital  Desktop Wireless Intercom  

WirelessIntercom Call Dialing

Master slave intercom upto 1000 lines

Wireless Digital  Multi Channel Intercom

Car Vehicle Intercom System

Wireless Security Apartment Door Phone

Earth wire intercom


PABX Wireless Intercom ISM 1600

Technical information:
■ World Open Band ISM 900Mhz ■
Regulation Compliance : FCC Part 15, Part 68
■ Number of channels: 100 and 2 slot per duplex Channels
■ Frequency range: 902Mhz to 928 MHz
■ Duplex procedure: Shock Burst TDMA
■ Channel spacing: 250kHz
■ Bit rate: 250 kbit/s
■ Modulation: Encrypted GMSK ■ Frequency Hopping 100/Se
■ RF Transmission Power: Approx. 50mW ~ 1000mW (Automatic)
■ Voice coding: Own CODEC Shock Burst ADC 8 kbit/s
■ Operating range up to 400m or 1000m (LOS)
■ Battery 3.7V 1000mAh Li-Poly, 3 days Standby and 10 hours Talk time (Optional)
■ Dimension 220 x 95 x 85 mm, Weight: 350gm ■ Power Supply: 90V ~250V
■ Operating Temperature : -20 ~ 70C
■ Humidity : 20 ~ 75%

■ Youtube:

Contact Us:

PS Road, Azad Road, Kaloor, Kochi – 682017
Kerala, India
Phone: +91 9447034020, +91 484 2340209
WhatsApp : +91 9447034020,
Skype: thodukonics