Brief：Broadcasting Telephones Loud Speaker Telephone JR103-FK-HB

undefined in a highly reliable product with a long MTBF.
Equiped with hron and beacon, the hron can broadcast remotely for notification, hron works after 1-9 rings (adjustable), shut when handset lifted or call finished. Hron works after 1-9 rings, shut when handset lifted or call finished. The LED Red beacon begins to flash when ringing or in use, attracting attention to the phone when call comes, itcould be very useful in the noisy environments.
Ideal for Metro, Railway, Highway side, Marine, Mining, Tunnels, Steel Plant,Chemical plant,Power plant and related industrial application, etc.
http://www.jrtelephones.com。