Title:
TELEPHONE SYSTEM AND COMMUNICATION EQUIPMENT
Document Type and Number:
Japanese Patent JPH098953
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To obtain a system in which a kind of an indoor device generating a dial tone to an indoor telephone set is in an indoor telephone line and connected to the indoor telephone set without interference with the base band service by the area exchange enterprise. SOLUTION: A dial controller is connected between an indoor telephone set and a telephone network along a 1st communication channel. The dial controller 22 has a circuit to generate a dial tone for the indoor telephone set along a 2nd communication channel extended between the indoor telephone set and the dial tone controller 22. The dial tone controller 22 has a processor processing to receive a signal from tone indoor telephone set and to process the received signal and a relating circuit.
Inventors:
TEODOA SAIZAA SEKANDO
Application Number:
JP14531996A
Publication Date:
January 10, 1997
Filing Date:
June 07, 1996
Export Citation:
Assignee:
AT & T CORP
International Classes:
H04Q3/58; H04M3/42; H04M3/44; H04M11/00; H04Q1/453; H04Q3/42; H04M15/00; (IPC1-7): H04M11/00; H04Q3/58
Attorney, Agent or Firm:
Hirofumi Mimata