H04M3/32 - CPC Classification Index

ClassID:

227580 ⎘

H04M3/32 - CPC Classification

Classification description:

Automatic or semi-automatic exchanges; Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring; Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges

Sub-classes:

H04M3/323 » {for the arrangements providing the connection (test connection, test call, call simulation)} 66
H04M3/326 » {for registers and translators} 1

Recent Application in this class:

20210250440

Cable length calculation system and cable length calculation method

20160192038

Telephony equipment migration

20150281434

Method and apparatus of optimizing an xDSL transceiver configuration using single ended line test (SELT) measurement

20150030138

Method and apparatus for detecting and locating loop impairments

20130343527

Telephony equipment migration

20130070908

Network testing

20130064242

Methods and apparatus to measure market share for voice over internet protocol carriers

20100080215

Method and system for measuring market share for voice over internet protocol carriers

20080049738

MONITORING SYSTEM AND METHOD FOR TRUNK GATEWAY

20060098791

Switch proxy for providing emergency stand alone service in remote access systems

20060062230

Method for testing speech/data channels in a telecommunication network

20050129183

Measurement deferral and aggregation for extensible test configuration