Title:
移動端末、緊急呼管理装置、緊急呼管理システム及び緊急呼の管理方法
Document Type and Number:
Japanese Patent JP4026118
Kind Code:
B2
Abstract:
The invention comprises emergency call management apparatus (31) and a mobile station (1). The emergency call management apparatus (31) monitors the emergency call generation rate, which is indicative of the rate of generation of emergency calls in a network, and on the basis of the result of this monitoring, transmits state information indicative of the restriction state of communication in that network, when the emergency call generation rate attains a preset condition. The mobile station (1) has emergency number information indicative of a number to be dialed to make an emergency call, and transmits, on the basis of the emergency number information and the received state information, a connection request to the network when the restriction state is a state in which only that emergency call is accepted and the number that has been dialed is the number to be dialed to make that emergency call. This provides a higher probability that an emergency call will be processed in situations in which there is a high rate of generation of emergency calls. This is because in such situations the network only has to process emergency calls.
Inventors:
Yasuhiro Tani
Application Number:
JP2002044037A
Publication Date:
December 26, 2007
Filing Date:
February 20, 2002
Export Citation:
Assignee:
NEC
International Classes:
H04M1/00; H04M1/663; H04M3/42; H04M3/436; H04M11/04; H04W4/90
Domestic Patent References:
| JP2001078260A | ||||
| JP11234730A | ||||
| JP2001069565A |
Attorney, Agent or Firm:
Minoru Kudo