Remote maintenance method and device thereof in private branch e

Details Remote maintenance method and device thereof in private branch e Remote maintenance method and device thereof in private branch e

1991-12-30

1994-01-04

Kuntz, Curtis

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Testing of subscriber loop or terminal

379 14, 379 15, H04M 322

Patent

active

052767272

ABSTRACT:
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, are disclosed.

REFERENCES:
patent: 4972453 (1990-11-01), Daniel, III et al.

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