H - Electricity – 04 – M
Patent
H - Electricity
04
M
H04M 3/42 (2006.01) H04M 3/22 (2006.01) H04Q 1/26 (2006.01) H04Q 3/42 (2006.01) H04Q 3/62 (2006.01)
Patent
CA 2062102
Disclosed are a method and device for maintaining a PBX system by connecting the PBX system with a remote maintenance center 220 through a public switch telephone network (PSTN), a method for transmitting a state information of the PBX system to the remote maintenance by connecting a remote maintenance connection circuit automatically in case of the PBX system receiving an incoming call from the remote maintenance center, and a MODEM control circuit 302 for communicating the state information with an external device 220 by utilizing the MODEM 303 built in the system without using a separate port.
Cho Seung-Hwan
Jeong Chang-Lae
Kim Yang-Seon
R. William Wray & Associates
Samsung Electronics Co. Ltd.
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