Suppliers with verified business licenses
Audited Supplier | Operating Temperature | -30°C to +65°C |
| Storing Temperature | -40°C to +75°C |
| Ringing Tone | Shrill warble tone 80 dBA @ 1 metre typical |
| M.T.B.F. | in excess of 50,000 hours using |
| Dialing | MF (tone) |
| Lightning/Transients | Protection to ITU-T k.21 enhanced levels |
J&R is one of the most professional manufacturers of emergency telephones, industrial telephones, Explosion-proof Telephones, and public telephones in Asia. The successful cooperation with thousands of customers all over the world and the supports to hundreds of projects have made us a reliable and popular supplier of industrial phones and phone accessories. Our main products include weatherproof phones, Explosion proof telephone, prison phones, emergency phones, elevator phones , acoustic phone booths and telephone kits as well.
As a reliable supplier of different kinds of industrial telephones, we have been sharing the equipments and systems with different customers and users all over the world. The professional service and excellent quality made us enjoy the reputation over more than 80 countries, including USA, China, Thailand, Malaysia, Turkey, Israel, Greece, Spain, France, UK, Denmark, South Africa, Australia, Mexico, Colombia, Chile etc.
Dedication and profession have been our pursuing goal during any procedures of our production, not only in developing and quality controlling, but also in marketing and after sales. We serve any single potential customer with special individual solutions and systems.
Suppliers with verified business licenses
Audited Supplier 
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