Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SYSTEM FOR RELEASE OF REGISTRATION OF ABSENCE TRANSFER
Document Type and Number:
Japanese Patent JPS5916457
Kind Code:
A
Abstract:

PURPOSE: To inform the user that an outgoing call out of own telephone set is restricted, by transmitting a signal sound different from a conventional call sound to the subscriber telephone set during the registration of absence transfer.

CONSTITUTION: When a subscriber telephone set A registered for absence transfer is hooked off, a central controller CC detects allocated location information of the A with a line scanning control section LSCC and a switch control section SWC connects a connecting path C. The information of the subscriber telephone set during registering the absence transfer is stored in a storage circuit CFVM. The central controller CC gives a retrieval command to a retrieval circuit CFVR based on the allocated location information of the A detected and the CFVR returns the information whether or not the subscriber telephone set is registered in the CFVM to the CC. When the telephone set is registered through collation, the CC transmits a sound representing the registration of the absence transfer to the subscriber telephone set A hooked off via a trunk scan driving circuit TSD and an outgoing register trunk ORT.


Inventors:
YAMADA HIROO
Application Number:
JP1982000125439
Publication Date:
January 27, 1984
Filing Date:
July 19, 1982
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIPPON ELECTRIC CO
International Classes:
H04M3/42; H04M3/54; (IPC1-7): H04M3/54
Domestic Patent References:
JPS55143865A1980-11-10