NEC Platforms, Ltd.;Nippon Telegraph And Telephone East Corporation;Nippon Telegraph and Telephone West Corporation
发明人:
申请号：
EP15857575.3
公开号：
EP3158984A4
申请日:
2015.10.22
申请国别(地区):
EP
年份:
2017
代理人:
摘要：
In nurse call systems where communication between a plurality of slave units and a plurality of extension terminals is possible, a nurse call controller serving the slave units and a private branch exchange serving the mobile terminals have been connected to each other through a nurse call adaptor； thus, there is a need for one such nurse call system that does not require a nurse call adaptor. Provided is an interface unit which is connected to a nurse call controller through a plurality of ISND basic interfaces, connected to a private branch exchange through an ISDN primary rate interface, and performs interface conversion therebetween.
