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Save up to 40% on your Mobile Calls from your landline phone or PBX extension
The GSM-FTI4888 unit allows automatic cell to cell communication from your PABX unit and will save 30% over your landline phone bill .
It is the same as a cellphone with a Power Supply, PBX Interface and a built-in aerial.
Accomodates 2 way traffic in the case of phone line failure.