FIELD: voice-transfer internetwork interface systems.
SUBSTANCE: proposed invention relates to development of internetwork interface for voice transfer according to Internet protocol to support VoIP calls of telephone exchange provided with office switchboard only. Device has office switchboard, peripheral exchange station, VoIP processor, and also control means for setting VoIP internetwork interface in line and ear-mouth or off-line mode.
EFFECT: enhanced reliability of supporting voice internetwork interface calls of telephone exchange having only office switchboard.
15 cl 7 dwg
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