EP 1665754 A1 20060607 - METHOD AND COMMUNICATION SYSTEM FOR THE DETECTION OF AT LEAST ONE ADDITIONAL COMMUNICATION DEVICE WHICH CAN BE CONNECTED TO AT LEAST ONE SUBSCRIBER CONNECTION LINE
Title (en)
METHOD AND COMMUNICATION SYSTEM FOR THE DETECTION OF AT LEAST ONE ADDITIONAL COMMUNICATION DEVICE WHICH CAN BE CONNECTED TO AT LEAST ONE SUBSCRIBER CONNECTION LINE
Title (de)
VERFAHREN UND KOMMUNIKATIONSANORDNUNG ZUR DETEKTION ZUMINDEST EINER WEITEREN MIT ZUMINDEST EINER TEILNEHMERANSCHLUSSLEITUNG VERBINDBAREN KOMMUNIKATIONSEINRICHTUNG
Title (fr)
PROCÉDÉ ET SYSTÈME DE COMMUNICATION POUR DÉTECTER AU MOINS UN AUTRE DISPOSITIF DE COMMUNICATION POUVANT ÊTRE RELIÉ À AU MOINS UNE LIGNE D'ABONNÉ
Publication
Application
Priority
- EP 2004051727 W 20040805
- DE 10342806 A 20030916
Abstract (en)
[origin: WO2005032113A1] The invention relates to a method and to a communication system for the detection of at least one other communication device which can be connected to at least one subscriber connection line. The transmission function (Hcurrent) of the at least one subscriber connection line (TAL) is monitored with respect to significant modifications in order to detect at least one additional communication device (C) which can be connected to at least one subscriber connection line. The detection of at least one other communication device (c) connected to the subscriber connection line is displayed if a significant modification of the transmission function (Hcurrent) is determined. Advantageously, communication devices (C) and/or listening devices having high input impedance connected to the subscriber connection line (TAL) can be detected.
IPC 1-7
IPC 8 full level
H04M 3/08 (2006.01); H04M 11/06 (2006.01)
CPC (source: EP US)
H04M 3/08 (2013.01 - EP US); H04M 3/303 (2013.01 - EP US); H04M 11/062 (2013.01 - EP US); H04M 2201/18 (2013.01 - EP US)
Citation (search report)
See references of WO 2005032113A1
Citation (examination)
US 2003001586 A1 20030102 - WARKE NIRMAL [US]
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
WO 2005032113 A1 20050407; CN 100531255 C 20090819; CN 1853404 A 20061025; DE 10342806 A1 20050414; EP 1665754 A1 20060607; US 2007071229 A1 20070329
DOCDB simple family (application)
EP 2004051727 W 20040805; CN 200480026688 A 20040805; DE 10342806 A 20030916; EP 04766432 A 20040805; US 57174504 A 20040805