Title:
PTT DISPATCHING SYSTEM AND A REMOTE-DESTROYING KEY METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2009/049447
Kind Code:
A1
Abstract:
A remote-destroying key method in a PTT dispatching system is provided in the
present invention, in which the PTT dispatching system performs encryption
call management to a PTT terminal equipped encryption module and includes the
following steps: A1. the PTT dispatching system initiating a remote-dispatching
key request to certain PTT terminal; B1. obtaining a call information corresponding
with the PTT terminal according to the remote-destroying key request so as to
establish a call channel with the PTT terminal; C1. generating a remote-destroying
key instruction to destroy the encryption module of the PTT terminal; D1. sending
the remote-destroying key instruction to the PTT terminal so as to destroy the
encryption module. A PTT dispatching system for realizing remote-destroying
key of a terminal is also provided in the present invention. In the present invention,
the encryption module of the terminal could be destroyed instantly, which insures
real time privacy of an encryption call.
Inventors:
WANG YAN (CN)
Application Number:
PCT/CN2007/003321
Publication Date:
April 23, 2009
Filing Date:
November 23, 2007
Export Citation:
Assignee:
ZTE CORP (CN)
WANG YAN (CN)
WANG YAN (CN)
International Classes:
H04W12/03; H04W12/0433; H04W4/10; H04W76/00; H04W88/02
Foreign References:
| CN101022608A | 2007-08-22 | |||
| RU2307475C1 | 2007-09-27 | |||
| US20060121927A1 | 2006-06-08 |
Other References:
See also references of EP 2207400A4
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (Floor 16 Tower A,Indo Building,A48 Zhichun Road, Haidian District, CN)
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