Patents-Review.com
ClassID:

227798 ⎘

H04M9/003 - CPC Classification

Classification description:

Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems Transmission of control signals from or to the key telephone set; signalling equipment at key telephone set, e.g. keyboard or display equipment

Recent Application in this class:
#1
20240031490
2024-01-25

COMPUTER-PROGRAMMED TELEPHONE-ENABLED DEVICES FOR PROCESSING AND MANAGING NUMEROUS SIMULTANEOUS VOICE CONVERSATIONS CONDUCTED BY AN INDIVIDUAL OVER A COMPUTER NETWORK AND COMPUTER METHODS OF IMPLEMENTING THEREOF

 #2
20230109198
2023-04-06

Computer-programmed telephone-enabled devices for processing and managing numerous simultaneous voice conversations conducted by an individual over a computer network and computer methods of implementing thereof

 #3
20210200508
2021-07-01

Systems, methods and computer program products for controlling the audio levels of multiple simultaneous communication channels

 #4
20210084171
2021-03-18

Computer-programmed telephone-enabled devices for processing and managing numerous simultaneous voice conversations conducted by an individual over a computer network and computer methods of implementing thereof

 #5
20190179603
2019-06-13

Systems, methods and computer program products for performing active media transmission swap

 #6
20190037079
2019-01-31

Computer-programmed telephone-enabled devices for processing and managing numerous simultaneous voice conversations conducted by an individual over a computer network and computer methods of implementing thereof

 #7
20180307459
2018-10-25

Systems, methods and computer program products for performing call swap

 #8
20180227431
2018-08-09

Incoming-call number notification apparatus, exchange, incoming-call number notification system, and computer readable medium

 #9
20180109682
2018-04-19

COMPUTER-PROGRAMMED TELEPHONE-ENABLED DEVICES FOR PROCESSING AND MANAGING NUMEROUS SIMULTANEOUS VOICE CONVERSATIONS CONDUCTED BY AN INDIVIDUAL OVER A COMPUTER NETWORK AND COMPUTER METHODS OF IMPLEMENTING THEREOF

 #10
20180027124
2018-01-25

Intercom system for collective housing

 #11
20160373584
2016-12-22

Systems, methods and computer program products for performing call swap

 #12
20160371052
2016-12-22

Systems, methods and computer program products for controlling the audio levels of multiple simultaneous communication channels

 #13
20140241340
2014-08-28

System and method for software turret phone capabilities

 #14
20090110161
2009-04-30

DIGITAL TELEPHONE INTERFACE DEVICE

 #15
14687597
2015-11-03

Computer-programmed telephone-enabled devices for processing and managing numerous simultaneous voice conversations conducted by an individual over a computer network and computer methods of implementing thereof