Aastra 57i CT IP Phone
The Aastra 57i CT IP phone includes radio transceiver and antennae integrated in phone, WDCT 2.4 GHz ISM band compliant and license free WDCT link from handset to desktop phone, SIP from desktop phone outward over IP up to 4 handsets per base, 300,000 sq. ft. coverage area supports 2 simultaneous calls - one on base and one on cordless handset.
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