ClassID:

227777

H04M7/122 - 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 network access arrangements or protocols where the PSTN/ISDN access is used as an access to networks other than PSTN/ISDN

Recent Application in this class:
#1
20260075017
2026-03-12

MEDIA APPLIANCE

#2
20230353682
2023-11-02

SYSTEM AND PROCEDURE FOR REAL-TIME HYBRID VOIP CONNECTIONS

#3
20230022815
2023-01-26

MEDIA APPLIANCE

#4
20210329130
2021-10-21

Relaying device and monitoring method of voice communication

#5
20200084167
2020-03-12

Media appliance

#6
20170180560
2017-06-22

Systems and methods for connecting heterogeneous networks

#7
20170034754
2017-02-02

Call handoff initiation in hybrid networks

#8
20160191714
2016-06-30

Central station connectivity

#9
20160119179
2016-04-28

Transparent PSTN failover

#10
20150215250
2015-07-30

Media appliance

#11
20120258698
2012-10-11

Error correction for DTMF corruption on uplink

#12
20120106718
2012-05-03

Automatic digit map generation for access gateway during call setup

#13
20110244955
2011-10-06

Media appliance

#14
20110235552
2011-09-29

Method and apparatus for placing a long distance call based on a virtual phone number

#15
20110194696
2011-08-11

SECURE PROTOCOL TERMINAL ADAPTER

#16
20110183653
2011-07-28

Error correction for DTMF corruption on uplink

#17
20110117892
2011-05-19

METHOD OF REALIZING AUTOMATIC DIAL-UP CONNECTION TO INTERNET FROM COMPUTER AND COMMUNICATION DEVICE USING THE SAME

#18
20100202599
2010-08-12

Method and apparatus for establishing a data link based on a pots connection

#19
20100146096
2010-06-10

COMMUNICATION SYSTEM

#20
20100135284
2010-06-03

Method and system for routing calls from a standard telephone device to a voice over internet protocol network

#21
20100128865
2010-05-27

METHOD AND APPARATUS FOR PLACING A LONG DISTANCE CALL BASED ON A VIRTUAL PHONE NUMBER

#22
20100086115
2010-04-08

Method and apparatus for providing an audible calling party identification for a call waiting service

#23
20100074154
2010-03-25

Accessing a communications network

#24
20100054159
2010-03-04

METHOD AND DEVICE FOR PROVIDING CALL FORWARDING SERVICE FOR USERS

#25
20090185558
2009-07-23

IP converged system and call processing method thereof

#26
20090086719
2009-04-02

Dynamic initiation of I1-ps signaling in IMS centralized services

#27
20090060150
2009-03-05

Extending originating capabilities of a subscriber to devices in any telephony network

#28
20080226057
2008-09-18

Method and apparatus for placing a long distance call based on a virtual phone number

#29
20080181165
2008-07-31

Method and system for transmitting audio data between computing devices

#30
20080107100
2008-05-08

Method and apparatus for delivering relevant content

#31
20070217589
2007-09-20

VOIP conferencing

#32
20070211698
2007-09-13

SYSTEM AND DEVICE FOR INTEGRATING IP AND ANALOG TELEPHONE SYSTEMS

#33
20070116232
2007-05-24

Call detail record for internet call waiting

#34
20060271808
2006-11-30

Method for processing a connection-mode IP connection according to non-availability situations

#35
20060165057
2006-07-27

Presenting dialup access numbers status information using an automated voice response system

#36
20060147019
2006-07-06

Method and system for routing calls from a standard telephone device to a voice over internet protocol network

#37
20060140380
2006-06-29

Method and apparatus for providing an audible calling party identification for a call waiting service

#38
20060109840
2006-05-25

Method for providing advanced services for traditional PSTN residential endpoints

#39
20060104290
2006-05-18

Data transport between a media gateway and server

#40
20050265320
2005-12-01

Communications system and communications method

#41
20050180408
2005-08-18

VoIP wireless telephone system and method utilizing wireless LAN

#42
20050175166
2005-08-11

Emergency call completion for VoIP based on location of call originator

#43
20050175165
2005-08-11

Method and apparatus for placing a long distance call based on a virtual phone number

#44
20050053052
2005-03-10

Client-server architecture for the delivery of broadband services

#45
20050008030
2005-01-13

Procedure for exchanging useful information generated according to different coding laws between at least 2 pieces of user terminal equipment

#46
15414334
2017-09-19

Methods and systems to facilitate conferencing using mobile device