Is often met in business practice, during calls to organizations at the moment, when the call is transferred to another number or is set on hold, one hears a music in the telephone dynamics.
NRGtel
GSM/CDMA/UMTS Solutions
NRGTel is Germany based, most innovative developer and manufacturer of Next Generation (NG) telecommunication equipment. Our expertise is based on 20 yr. knowledge and experience of development and integration of different telec
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