ALCON 7 SS - Up to 20km Radio telephone transfer line system for rural areas up to 20km http://www.cordless4u.com
Below Range is result of Cordless4u test and match real life performance for ALCON CT 7 SS:
Range without line of sight is up to 20km. Max Range in line of sight is up to 30 km
Alcon CT 7 system has one base unit at the location where the telephone line is, and remote unit on the remote location, so you can use your line on those two places. It is even possible to connect up to 4 remote units (or in any combination with mobile ALCON handsets) to transfer your line to 4 locations, also have free intercom communication between the base and each remote unit.
ALCON CT 7 are designed to operate on a low band VHF/UHF frequency 382 MHZ / 256 MHZ, with automatic multi channel scan for free channel and with high quality voice transmission. The low band frequency will bend with the terrain so optical visibility is not necessary. Signal will travel through hills and valleys, over mountains, even underground into a coal mine.
Works on any analog line port (PBX, VOIP, PSTN, FXS or POTS)
No software setup / easy installation
The line of sight is not necessary for range
Reliable and simple to use
Up to 4 Remote Units or portable Handsets per one base
5 W Base unit
5 W Remote unit
Universal interface on the remote unit for phone, fax, data or other telecom equipment use
Intercom connection between base and remote or portable handsets
Economical and easy to use
Excellent signal quality for long range use
RF stability & durability
40 channels frequency auto scan
Two-way paging & intercom
Multiple Channel Access: 40 channels automatic scan to avoid interference
Built-in voice security circuit (Scrambler).
Works on two frequencies in the same time : 382.100 MHz / 256.100 MHz
You should check with local authorities for legality of usage for these frequencies