H04M1/654 - CPC Classification Index

ClassID:

227470 ⎘

H04M1/654 - CPC Classification

Classification description:

Substation equipment, e.g. for use by subscribers; Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations; Recording arrangements for recording a message from the calling party Telephone line monitoring circuits therefor, e.g. ring detectors

Sub-classes:

H04M1/6545 » {mechanically actuating hook switch, e.g. lifting handset} 6

Recent Application in this class:

20250048005

DEVICE FOR DETECTION OF A CLIPPED RINGING SIGNAL

20240195904

NLP-BASED CALL MONITORING METHOD FOR PREVENTING VOICE PHISHING AND APPARATUS THEREFOR

20220394121

Rotary phone recording device

20200314227

METHOD AND APPARATUS FOR PROCESSING TELEPHONE CALLS IN CONJUNCTION WITH CALL BLOCKING SERVICE

20120093304

Method and apparatus for selective silencing of telephone ringing

20120079094

System and method for data transfer of object properties

20100228780

Method for implementing user-specific calling preferences

20090238345

Method and apparatus for selective silencing of telephone ringing

20090016501

OFF-HOOK DETECTION SYSTEM, METHOD, AND COMPUTER PROGRAM PRODUCT

20080063181

Method of responding to an incoming voice call

20050148324

Method and apparatus for an improved call interrupt feature in a cordless telephone answering device