ClassID:

227792

H04M7/1295 - CPC Classification

Classification description:

Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks Details of dual tone multiple frequency signalling

Recent Application in this class:
#1
20260089257
2026-03-26

Systems and Methods for Automated Call Acceptance of Facility-Originated Telephone Calls with Prerecorded Preambles

#2
20250150531
2025-05-08

System And Methods For Automated Customer Response System Mapping And Duplication

#3
20250016267
2025-01-09

CHATBOT AND SEARCH ENGINE INTEGRATION

#4
20240357040
2024-10-24

TELEPHONE SIGNAL PROCESSING

#5
20240333840
2024-10-03

VERIFYING A COMMUNICATION CHANNEL BEING OPEN AND USABLE

#6
20240323270
2024-09-26

CALL CLASSIFICATION THROUGH ANALYSIS OF DTMF EVENTS

#7
20240305713
2024-09-12

SYSTEM AND METHODS FOR AN AUTOMATED CHATBOT TESTING PLATFORM

#8
20240212679
2024-06-27

Methods and systems for combined voice and signaling

#9
20240195914
2024-06-13

System and methods for automated customer response system mapping and duplication

#10
20240144230
2024-05-02

SYSTEMS AND METHODS FOR TONE TO TOKEN TELECOMMUNICATIONS PLATFORM

#11
20240040040
2024-02-01

REMOTE CONTROL OF A WEB BROWSER

#12
20240015007
2024-01-11

Systems and techniques for authentication and security

#13
20230370547
2023-11-16

System and methods for chatbot and search engine integration

#14
20230328178
2023-10-12

System and methods for an automated chatbot testing platform

#15
20230247136
2023-08-03

AUTOMATED ATTENDANT THAT SPECIFIES AUDIO TRANSMISSION CHARACTERISTICS FOR CALLS

#16
20230245083
2023-08-03

Emoji commanded action

#17
20230026071
2023-01-26

System and methods for automated customer response system mapping and duplication

#18
20220407961
2022-12-22

System and methods for chatbot and search engine integration

#19
20220407960
2022-12-22

System and methods for an automated chatbot testing platform

#20
20220337924
2022-10-20

Call classification through analysis of DTMF events

#21
20220303394
2022-09-22

MAPPING OF TELECOMMUNICATIONS SOFT CLIENT INPUT TO FEATURE ACCESS CODES OF A TELECOMMUNICATIONS SERVICE

#22
20220198428
2022-06-23

Systems and methods for tone to token telecommunications platform

#23
20220180336
2022-06-09

Emoji commanded action

#24
20220086284
2022-03-17

Method for processing voice messages, method for deactivating DTMF coding and method for processing a request to deactivate DTMF coding

#25
20220078375
2022-03-10

CONTROL METHOD CAPABLE OF CONTROLLING MCU AND VIDEO CONFERENCE TERMINAL BY USING USER TERMINAL, AND VIDEO CONFERENCE SYSTEM FOR SAME

#26
20210377494
2021-12-02

Intercom systems and methods using the same

#27
20210364322
2021-11-25

Emoji commanded action

#28
20210281671
2021-09-09

Telephony terminal

#29
20210243307
2021-08-05

Telephone apparatus, method of controlling telephone apparatus, and program

#30
20210152897
2021-05-20

Call classification through analysis of DTMF events

#31
20210092229
2021-03-25

System and methods for automated customer response system mapping and duplication

#32
20210006653
2021-01-07

System and method for integrated CX-AX contact center testing

#33
20200389555
2020-12-10

Remote control of a web browser

#34
20200234271
2020-07-23

Systems and methods for tone to token telecommunications platform

#35
20200195767
2020-06-18

Telephony terminal

#36
20200082826
2020-03-12

COMMAND AND CONTROL OF DEVICES AND APPLICATIONS BY VOICE USING A COMMUNICATION BASE SYSTEM

#37
20200076953
2020-03-05

TELEPHONE SIGNAL PROCESSING

#38
20190356774
2019-11-21

System and method for integrated CX-AX contact center testing

#39
20190342742
2019-11-07

Real-time over the top 9-1-1 caller location data

#40
20190342450
2019-11-07

INTERACTIVE VOICE RESPONSE SYSTEM CRAWLER

#41
20190297193
2019-09-26

METHOD FOR COLLECT CALL SERVICE BASED ON VOIP TECHNOLOGY AND SYSTEM THEREOF

#42
20190238956
2019-08-01

Call classification through analysis of DTMF events

#43
20190182372
2019-06-13

Telephony terminal

#44
20190179780
2019-06-13

Set buffer state instruction

#45
20190149502
2019-05-16

Emoji commanded action

#46
20190095900
2019-03-28

Systems and methods for tone to token telecommunications platform

#47
20190068792
2019-02-28

DOOR ENTRY SYSTEMS AND METHODS

#48
20190037076
2019-01-31

System and method for analytics with automated whisper mode

#49
20190007550
2019-01-03

System and method for integrated CX-AX contact center testing

#50
20180316792
2018-11-01

Centrally provided interactive call menu for a call structure

#51
20180131808
2018-05-10

System and method for analytics with automated whisper mode

#52
20180122381
2018-05-03

Command and control of devices and applications by voice using a communication base system

#53
20180122380
2018-05-03

Command and control of devices and applications by voice using a communication base system

#54
20180115531
2018-04-26

Method and apparatus for mediating communications

#55
20180084114
2018-03-22

METHOD FOR HOME GATEWAY TO REALIZE IVR SERVICE AND HOME GATEWAY

#56
20180084110
2018-03-22

System and method for secure interactive voice response

#57
20180041823
2018-02-08

Call classification through analysis of DTMF events

#58
20180041642
2018-02-08

METHOD FOR COLLECT CALL SERVICE BASED ON VOIP TECHNOLOGY AND SYSTEM THEREOF

#59
20170374193
2017-12-28

Telecommunication call management and monitoring system with voiceprint verification

#60
20170272577
2017-09-21

Methods, apparatuses and system for synchronizing call media and content

#61
20170215050
2017-07-27

Method of providing DTMF-based interactive text response services

#62
20170214802
2017-07-27

DOOR ENTRY SYSTEMS AND METHODS

#63
20170214801
2017-07-27

Door entry systems and methods

#64
20170201628
2017-07-13

PREVENTING DOUBLE DIGIT DETECTION CAUSED BY IN-BAND DUAL-TONE MULTI-FREQUENCY SIGNALING

#65
20170195485
2017-07-06

Systems and methods for routing user data

#66
20170126890
2017-05-04

Remote control of a web browser

#67
20170099391
2017-04-06

Message sending device and method thereof

#68
20170085713
2017-03-23

Adjustable dual-tone multi-frequency phone system

#69
20170047068
2017-02-16

Command and control of devices and applications by voice using a communication base system

#70
20170047067
2017-02-16

Command and control of devices and applications by voice using a communication base system

#71
20170034330
2017-02-02

Method and Device to Operate Phone with a Single Key

#72
20170026516
2017-01-26

System and method for secure transmission of data signals

#73
20170006163
2017-01-05

Apparatus and method for telephone call processing

#74
20160373586
2016-12-22

Dual-tone multi-frequency digit detection in a wireless communication system

#75
20160352880
2016-12-01

Telephony terminal

#76
20160337831
2016-11-17

Real-time over the top 9-1-1 caller location data

#77
20160337524
2016-11-17

Robust DTMF detection in an unreliable voice-over-IP (VoIP) environment

#78
20160323455
2016-11-03

ALGORITHM FOR DTMF DETECTION

#79
20160309011
2016-10-20

Two Way Automatic Universal Transcription Telephone

#80
20160277576
2016-09-22

Efficient mechanism for customer feedback from a voice call

#81
20160255189
2016-09-01

Telecommunication call management and monitoring system with voiceprint verification

#82
20160232113
2016-08-11

Set buffer state instruction

#83
20160227386
2016-08-04

Method and system for providing informative incoming call alerts

#84
20160227034
2016-08-04

Interactive voice response system crawler

#85
20160219468
2016-07-28

System for efficient recovery of node-B buffered data following MAC layer reset

#86
20160165061
2016-06-09

System and method for secure transmission of data signals

#87
20160043895
2016-02-11

TONING CONTROL METHOD OF WIFI DEVICE SETTING BY SMART DEVICE

#88
20160021243
2016-01-21

Telecommunication call management and monitoring system with voiceprint verification

#89
20160014278
2016-01-14

Secure data entry system

#90
20160014270
2016-01-14

Telecommunication call management and monitoring system with voiceprint verification

#91
20150373429
2015-12-24

Low complexity tone/voice discrimination method using a rising edge of a frequency power envelope

#92
20150358462
2015-12-10

Method and system for providing communication control functionality at a remotely located site using a distributed feature architecture

#93
20150324214
2015-11-12

Interpreting I/O operation requests from pageable guests without host intervention

#94
20150288810
2015-10-08

Telecommunication call management and monitoring system with voiceprint verification

#95
20150229772
2015-08-13

Preventing double digit detection caused by in-band dual-tone multi-frequency signaling

#96
20150221309
2015-08-06

Command and control of devices and applications by voice using a communication base system

#97
20150163363
2015-06-11

Low complexity tone/voice discrimination method using a rising edge of a frequency power envelope

#98
20150117627
2015-04-30

Multicall telephone system

#99
20150058852
2015-02-26

Interpreting I/O operation requests from pageable guests without host intervention

#100
20150036553
2015-02-05

SYSTEMS AND METHODS FOR PROVIDING ENHANCED TELEPHONE SERVICES

#101
20140365372
2014-12-11

Method and apparatus for mediating communications

#102
20140226802
2014-08-14

SYSTEM AND METHOD FOR PROVIDING TELEPHONIC ACCESS TO AN AUDIO STREAM

#103
20140219427
2014-08-07

Eliminating false audio associated with VoIP communications

#104
20140192779
2014-07-10

System for efficient recovery of Node-B buffered data following MAC layer reset

#105
20140169550
2014-06-19

Robust DTMF detection in an unreliable voice-over-IP (VoIP) environment

#106
20140169364
2014-06-19

Telephony terminal

#107
20140169228
2014-06-19

INTERACTIVE CONTROL OF ALARM SYSTEMS BY TELEPHONE INTERFACE USING AN INTERMEDIATE GATEWAY

#108
20130305247
2013-11-14

Interpreting I/O operation requests from pageable guests without host intervention

#109
20130268571
2013-10-10

Methods and apparatus for efficient tone detection

#110
20130242978
2013-09-19

SYSTEM PREVENTING DOUBLE DIGIT DETECTION CAUSED BY IN-BAND DUAL-TONE MULTI-FREQUENCY SIGNALING AND METHODS THEREOF

#111
20130089191
2013-04-11

Methods, systems, and devices for providing voice-call services responsive to a dialed sequence

#112
20130064240
2013-03-14

Systems and methods for multiple mode voice and data communications using intelligently bridged TDM and packet buses

#113
20130022057
2013-01-24

Communicating tone information in a network

#114
20130012169
2013-01-10

Dual Tone Multi-Frequency Signal Transmission Method and Device

#115
20130010940
2013-01-10

Method and system for providing communication control functionality at a remotely located site using a distributed feature architecture

#116
20120282923
2012-11-08

System and method for the synchronized transmission of tone sequences

#117
20120275588
2012-11-01

Interactive control of alarm systems by telephone interface using an intermediate gateway

#118
20120258698
2012-10-11

Error correction for DTMF corruption on uplink

#119
20120249723
2012-10-04

Systems and methods for multiple mode voice and data communications using intelligently bridged TDM and packet buses and methods for performing telephony and data functions using the same

#120
20120216198
2012-08-23

Interpreting I/O operation requests from pageable guests without host intervention

#121
20120148036
2012-06-14

Systems and methods for handling calls associated with an interactive voice response application

#122
20120011146
2012-01-12

System and method for efficient call management for directory assistance services

#123
20110317591
2011-12-29

Presence based DTMF signaling enablement of voice communication controller and method

#124
20110286585
2011-11-24

Telecommunication call management and monitoring system with voiceprint verification

#125
20110263223
2011-10-27

Systems and methods of synchronizing ring tone cycles and delivery of DTMF tones

#126
20110261808
2011-10-27

Server Apparatus and DTMF Notification Method

#127
20110228765
2011-09-22

Telephony terminal

#128
20110202350
2011-08-18

Remote control of a web browser

#129
20110202347
2011-08-18

Communication converter for converting audio information/textual information to corresponding textual information/audio information

#130
20110200179
2011-08-18

Providing of presence information to a telephony services system

#131
20110184746
2011-07-28

SYSTEM AND METHOD FOR PROVIDING COUNSELING SERVICE

#132
20110183665
2011-07-28

System and method for the synchronized transmission of tone sequences

#133
20110183653
2011-07-28

Error correction for DTMF corruption on uplink

#134
20110173615
2011-07-14

Interpreting I/O operation requests from pageable guests without host intervention

#135
20110142033
2011-06-16

Eliminating false audio associated with VoIP communications

#136
20110135084
2011-06-09

Call completion via instant communications client

#137
20110129197
2011-06-02

Method, system, and device for controlling media play

#138
20110080906
2011-04-07

Method for collect call service based on VoIP technology and system thereof

#139
20110055251
2011-03-03

System and method for efficient call management for directory assistance services

#140
20100329367
2010-12-30

DTMF tone monitoring apparatus and method of identifying a DTMF tone

#141
20100329286
2010-12-30

Method and receiving unit for synchronizing a packet-oriented reception with a calculated tone signal

#142
20100322231
2010-12-23

VOIP DEVICE AND METHOD FOR ADJUSTING INTERRUPT TIME THEREOF

#143
20100248687
2010-09-30

Methods and systems for encoding and decoding audio signals

#144
20100215159
2010-08-26

Secure feature access from an off-PBX telephone

#145
20100202398
2010-08-12

System for efficient recovery of node-B buffered data following MAC layer reset

#146
20100177879
2010-07-15

APPARATUS AND METHOD FOR PROVIDING ENHANCED TELECOMMUNICATIONS SERVICES

#147
20100157852
2010-06-24

Systems and methods for multiple mode voice and data communications using intelligently bridged TDM and packet buses and methods for performing telephony and data functions using the same

#148
20100118866
2010-05-13

Internet protocol transport of PSTN-to-PSTN telephony services

#149
20100091767
2010-04-15

Methods, systems, and devices for providing voice-call services responsive to a dialed sequence

#150
20100076767
2010-03-25

Text to speech conversion of text messages from mobile communication devices

#151
20100020962
2010-01-28

Method and apparatus for transmitting signaling tones over a packet switched network

#152
20090310771
2009-12-17

Systems and methods for providing enhanced telephone services

#153
20090274281
2009-11-05

Method and system for providing communication control functionality at a remotely located site using a distributed feature architecture

#154
20090262727
2009-10-22

Communication system

#155
20090168769
2009-07-02

Methods and apparatus for dual-tone multi-frequency signal analysis within a media over internet protocol network

#156
20090132256
2009-05-21

Command and control of devices and applications by voice using a communication base system

#157
20090122785
2009-05-14

VoIP adapter, IP network device and method for performing advanced VoIP functions

#158
20090097627
2009-04-16

APPARATUS AND METHOD FOR PROVIDING ENHANCED TELECOMMUNICATIONS SERVICES

#159
20080320479
2008-12-25

TELECOM ADAPTER LAYER SYSTEM, AND METHOD AND APPARATUS FOR ACQUIRING NETWORK ELEMENT INFORMATION

#160
20080310607
2008-12-18

Presence based DTMF signaling enablement of voice communication controller and method

#161
20080304652
2008-12-11

System and method for amplifying attenuated DTMF signals in a packet based network

#162
20080304636
2008-12-11

System and method for providing telephonic access to an audio stream

#163
20080298347
2008-12-04

METHOD AND SYSTEM FOR PLAYING PACKETIZED ANNOUCEMENTS TO TELEPHONE NETWORK END OFFICE SWITCHING SYSTEMS FROM A CENTRALIZED DIGITAL RECORDED ANNOUNCEMENT UNIT

#164
20080279359
2008-11-13

System and method for restricting and monitoring telephone calls

#165
20080260044
2008-10-23

FFT-BASED MULTICHANNEL VIDEO RECEIVER

#166
20080228972
2008-09-18

Systems and methods for multiple mode voice and data communications using intelligently bridged TDM and packet buses

#167
20080212747
2008-09-04

Method and apparatus for serializing an asynchronous communication

#168
20080192904
2008-08-14

SYSTEMS AND METHODS FOR PROVIDING ENHANCED TELEPHONE SERVICES

#169
20080192657
2008-08-14

SYSTEMS AND METHODS FOR PROVIDING ENHANCED TELEPHONE SERVICES

#170
20080192656
2008-08-14

Systems And Methods For Providing Enhanced Telephone Services

#171
20080192655
2008-08-14

Systems And Methods For Providing Enhanced Telephone Services

#172
20080192623
2008-08-14

METHODS AND DEVICES FOR DUAL-TONE MULTI-FREQUENCY (DTMF) SIGNALING

#173
20080130847
2008-06-05

System and method for efficient call management for directory assistance services

#174
20080088750
2008-04-17

Display Device with Speaker Grill

#175
20080051120
2008-02-28

Mobile device for sending text messages

#176
20080049913
2008-02-28

Voice communication system

#177
20080010355
2008-01-10

System and method for sending text messages converted into speech through an internet connection

#178
20080008163
2008-01-10

System, method and mobile device for remote control of a voice mail system

#179
20080008158
2008-01-10

Internet protocol-private branch exchange for providing internet messenger function and internet terminal for use therewith

#180
20070274474
2007-11-29

System and method for unified messaging in inter/intranet telephony

#181
20070273790
2007-11-29

Television apparatus

#182
20070248106
2007-10-25

Method for implementing resources reservation in access configuration mode in next generation network

#183
20070230371
2007-10-04

Data communications over voice channel with mobile consumer communications devices

#184
20070217437
2007-09-20

Method and apparatus for communicating with one of plural devices associated with a single telephone number during a disaster and disaster recovery

#185
20070140115
2007-06-21

Method for selection of an available transmission channel by sending a negative decision value and an additional positive decision value and corresponding base station, mobile terminal and mobile radio network

#186
20070133526
2007-06-14

Remote access communication system and control method thereof

#187
20070123201
2007-05-31

Telephony terminal

#188
20070121855
2007-05-31

System and method for restricting and monitoring telephone calls

#189
20070094362
2007-04-26

Method for automatically configuring terminal equipment

#190
20070064679
2007-03-22

Jitter buffer management in a packet-based network

#191
20070058579
2007-03-15

Method for processing calls from multiple communication networks and equipment thereof

#192
20070047518
2007-03-01

Methods, systems, and devices for providing voice-call services responsive to a dialed sequence

#193
20070046512
2007-03-01

Data conversion system

#194
20070045551
2007-03-01

Camera module apparatus with IR-cut-coated window glass

#195
20070045550
2007-03-01

Miniature camera module with lens containing image sensor

#196
20070025331
2007-02-01

Systems and methods to send and receive encrypted DTMF digits in a data flow

#197
20060288277
2006-12-21

Communication apparatus and display method

#198
20060279663
2006-12-14

Arrangement for and method of projecting a level image

#199
20060269012
2006-11-30

Digital television transmitter and receiver for transmitting and receiving dual stream using 4 level vestigial side band robust data

#200
20060245574
2006-11-02

Systems and methods for handling calls associated with an interactive voice response application

#201
20060222169
2006-10-05

Method and system for dialing type conversion in a packetcable CPE device

#202
20060221924
2006-10-05

Mobile communications terminal for transmitting data frames in wireless lan and method thereof

#203
20060212903
2006-09-21

Moving picture processing device, information processing device, and program thereof

#204
20060203970
2006-09-14

Method and apparatus for monitoring telephone status

#205
20060203969
2006-09-14

Method and apparatus for monitoring device status

#206
20060203968
2006-09-14

METHOD AND APPARATUS FOR MONITORING TELEPHONE STATUS

#207
20060192894
2006-08-31

Moving picture processing device, information processing device, and program thereof

#208
20060182246
2006-08-17

Maintenance information communication terminal, image forming apparatus provided with same, maintenance information management host, and communication method

#209
20060181631
2006-08-17

Moving picture processing device, information processing device, and program thereof

#210
20060160545
2006-07-20

Methods and apparatus for identifying asset location in communication networks

#211
20060153176
2006-07-13

Computer-based multifunctional personal communication system with caller ID

#212
20060140600
2006-06-29

Image sensing apparatus with camera shake correction function

#213
20060140350
2006-06-29

Method and apparatus for monitoring telephone status

#214
20060139493
2006-06-29

Displaying apparatus and control method thereof

#215
20060133581
2006-06-22

Method and apparatus for monitoring telephone status

#216
20060125690
2006-06-15

Methods and apparatus for identifying asset location in communication networks

#217
20060114315
2006-06-01

Mixed media telecommunication call manager

#218
20060083368
2006-04-20

Method for upgrading access equipment in a telecommunications exchange and an upgraded telecommunications exchange

#219
20060083220
2006-04-20

Transport of DTMF tones over VOATM/VOIP networks

#220
20060072552
2006-04-06

Data network and PSTN telephony system

#221
20060059507
2006-03-16

Method for storing and transmitting data generated by security module

#222
20060047516
2006-03-02

Method for processing audio data on a network and device therefor

#223
20060045072
2006-03-02

Method of managing telephone calls over a data network, telephony station, server and telephony system supporting said method

#224
20060044623
2006-03-02

Apparatus, method, system, and computer program for managing image processing

#225
20060025168
2006-02-02

Synchronizing push to talk service in wireless communication system

#226
20060002537
2006-01-05

Communication networks including flash hook detectors and methods of operating the same

#227
20060002478
2006-01-05

Coding image signal

#228
20060002381
2006-01-05

Signaling for Internet end stations

#229
20050289432
2005-12-29

Read enable generator for a turbo decoder deinterleaved symbol memory

#230
20050289246
2005-12-29

Interpreting I/O operation requests from pageable guests without host intervention

#231
20050243872
2005-11-03

DTMF tone signal transmission method and DTMF tone signal transmission system

#232
20050242860
2005-11-03

FFT-based multichannel video receiver

#233
20050219564
2005-10-06

Image forming device, pattern formation method and storage medium storing its program

#234
20050218294
2005-10-06

Image sensor

#235
20050180404
2005-08-18

Method for collect call service based on VoIP technology and system thereof

#236
20050169248
2005-08-04

Method and apparatus for providing in-band location information in an emergency response network

#237
20050169244
2005-08-04

Control of packet network-based service servers using in particular dtmf signals

#238
20050165923
2005-07-28

Transmitter device and relay device for performing data transmission control

#239
20050157739
2005-07-21

System and method for transporting a call in a telecommunication network

#240
20050152521
2005-07-14

Apparatus and method for providing enhanced telecommunications services

#241
20050140667
2005-06-30

Connection device capable of converting a pixel clock to a character clock

#242
20050138462
2005-06-23

System and method for managing protocol network failures in a cluster system

#243
20050128216
2005-06-16

Connection device capable of mixing an RGB graphics signal and a YUV video signal and related method

#244
20050128202
2005-06-16

GRAPHICS CARD FOR SMOOTHING THE PLAYING OF VIDEO

#245
20050117564
2005-06-02

System for sending text messages converted into speech through an internet connection to a telephone and method for running it

#246
20050078942
2005-04-14

Information processing apparatus and method program, and recording medium

#247
20050074114
2005-04-07

Do-not-call compliance management for predictive dialer call centers

#248
20050074111
2005-04-07

Enhanced call feature service

#249
20050074109
2005-04-07

Integrated personal call management system

#250
20050074101
2005-04-07

Providing of presence information to a telephony services system

#251
20050069104
2005-03-31

Call management service

#252
20050066101
2005-03-24

Method and device for connecting sensors or actuators to a bus system

#253
20050058120
2005-03-17

Methods and apparatus for suppressing signaling tones in telephony signal

#254
20050055551
2005-03-10

Interactive protocol for remote management of access control to scrambled data

#255
20050053208
2005-03-10

Process, arrangement, devices for seizure of a shared telephone line

#256
20050050202
2005-03-03

Application instance level workload distribution affinities

#257
20050046600
2005-03-03

Robust system for transmitting and receiving map data

#258
20050025302
2005-02-03

Virtual private switched telecommunications network

#259
20050021345
2005-01-27

Webcall

#260
20050015489
2005-01-20

Apparatus, method, and computer program for managing resources in a communication system

#261
18588261
2025-02-18

Dual compatibility phone system

#262
18475429
2024-12-17

Audio tokens for multi-factor authentication

#263
18093070
2024-03-19

Dual compatibility phone system

#264
17484341
2023-01-31

Dual compatibility phone system

#265
17475920
2023-10-31

Audio tokens for multi-factor authentication

#266
17061597
2022-03-29

Appointment monitoring and tracking system

#267
16773058
2021-10-19

Dual compatibility phone system

#268
16406136
2020-01-21

Telecommunications system

#269
16381463
2021-10-19

Audio tokens for multi-factor authentication

#270
16261503
2020-05-26

IVR engagements and upfront background noise

#271
16251824
2020-02-11

Dual compatibility phone system

#272
16039981
2019-12-03

Automated telephone host system interaction

#273
15934047
2019-03-05

Dual compatibility phone system

#274
15599092
2018-10-02

Device and method for synchronizing data associated with a vehicle test

#275
15380498
2019-01-08

Systems and methods for tone to token telecommunications platform

#276
15242473
2017-10-24

Remote control of a mobile device

#277
15231987
2017-06-06

Enterprise conferencing with dual mixing

#278
15051930
2017-10-10

Protecting sensitive information provided by a party to a contact center

#279
15051292
2017-06-27

Device and method for synchronizing data associated with a vehicle test

#280
15000772
2016-05-17

Mobile device authentication and call routing using dual-tone multi-frequency signaling

#281
14793358
2018-04-24

Dual compatibility phone system

#282
14525468
2015-08-18

Enterprise conferencing with dual mixing

#283
14011815
2018-12-04

Detection and identification of synchronizing signals embedded in voice or data

#284
14011813
2015-06-09

Recovery of DTMF tones in the presence of periodic interference and obstruction

#285
13947461
2015-07-28

DTMF circuit and method of relaying DTMF digits in a DTMF circuit

#286
12873957
2017-11-07

Dual tone multi-frequency transcoding server for use by multiple session border controllers