Title:
RADIO ACCESS SYSTEM
Document Type and Number:
Japanese Patent JP3216707
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To solve a problem of a delay caused by transmission of a dial number specific to a portable telephone system through an out-band.
SOLUTION: When a subscriber hooks off a telephone set 5, a subscriber terminal 4 detects off-hook and sends a pseudo dial tone DT to the telephone set 5. Simultaneously with this operation, the subscriber terminal 4 connects a radio channel between the subscriber terminal 4 and a base station 3 (or a base station 3 or a base station control station 2) by sending a signal to the base station 3 (or the base station control station 2). Then a dial signal is sent to the base station 3 (or the base station control station 2) every time a dial button is depressed (PB or DP system). The base station 3 discriminates whether or not the dial signal indicates a final digit of the telephone number and opens a speech channel when the dial signal reaches the final digit.
Inventors:
Noriyoshi Sonetaka
Application Number:
JP11948598A
Publication Date:
October 09, 2001
Filing Date:
April 28, 1998
Export Citation:
Assignee:
NEC
International Classes:
H04Q3/42; H04M3/00; H04M11/00; H04Q1/30; H04W84/14; (IPC1-7): H04Q1/30; H04M3/00; H04M11/00; H04Q3/42; H04Q7/38
Domestic Patent References:
| JP54120509A |
Attorney, Agent or Firm:
Nobuyuki Kaneda (2 others)
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