Patents
Sitemap › H04 - Electric communication technique › H04M - Telephonic communication › H04M 7 - Arrangements for interconnection between switching centres
Patents for H04M 7 - Arrangements for interconnection between switching centres (24,777)
08/2012
08/21/2012US8249241 Call routing through an access node shared by multiple networks by using a double-network identifier
08/21/2012US8249236 Network call back to add conference participants and/or media capabilities
08/21/2012US8249082 System method for a communications access network
08/21/2012US8249061 Network switching system with asynchronous and isochronous interface
08/21/2012US8249059 Method for performing gate coordination on a per-call basis
08/21/2012US8248957 System and method for voice over internet protocol (VoIP) and facsimile over internet protocol (FoIP) calling over the internet
08/21/2012CA2446091C Service level agreements based on objective voice quality testing for voice over ip (voip) networks
08/16/2012US20120207134 Method and system for extended network access notification via a broadband access gateway
08/15/2012CN202385161U Gateway device for realizing DTMF (dual-tone multi frequency) flow transmission in VOIP (voice over internet protocol) network
08/15/2012CN1473424B Internet protocol end to end voice using legacy switching system
08/15/2012CN102640482A Route select service
08/15/2012CN102638627A Default gateway, terminal equipment and networking protocol speech signaling switching method
08/15/2012CN102638626A Method for connecting internet telephone
08/15/2012CN102638452A Calling method and device based on VoIP (voice over internet phone)
08/15/2012CN101729394B Methods and device for judging service state switching
08/15/2012CN101204076B Resilient regisration with a call manager
08/14/2012US8244876 Providing telephony services to terminals behind a firewall and/or a network address translator
08/14/2012US8243911 Failover mechanism based on historical usage data
08/14/2012US8243723 System and method for instant VoIP messaging
08/14/2012US8243720 Voice-over-IP hybrid digital loop carrier
08/14/2012US8243717 Providing telephony services using intelligent end points
08/14/2012CA2489910C Management of do-not-call databases in predictive dialing call centers
08/09/2012WO2012104712A2 Method and apparatus for providing a user with charging-related voice service
08/09/2012US20120201369 Method and System for Performing Communication Transfer Service for Access Gateway Control Function User
08/09/2012US20120201239 Multi-Line Telephone Calling
08/08/2012EP2484081A1 System and method for controlling a communication session in a terminal of a local area network
08/08/2012EP1900173B1 Method, server device and a converting device for setting up a user data connection
08/08/2012CN202374464U Emergency command platform communication system
08/08/2012CN202374320U Integrated touch screen dispatching desk
08/08/2012CN102629962A Method for realizing voice message function based on message wait event in EPON system
08/08/2012CN102629961A Method for realizing audio signal recording and playing on EPON gateway terminal equipment
08/08/2012CN102629960A Distributed voice conferencing
08/08/2012CN101883192B Data transmitting method and relay
08/08/2012CN101742008B Media stream proxy method, voice exchanger and communication system
08/08/2012CN101610269B Method, device and system for establishing link bearing data service
08/08/2012CN101605188B Method, system and front plugboard supporting hot plug
08/08/2012CN101552820B Network telephone system and network telephone operating method
08/08/2012CN101552767B Method, device and system for processing signal tone in media stream
08/08/2012CN101547259B VoIP test method based on analog data flow
08/08/2012CN101523864B System and method for accessing features offered by an application server
08/08/2012CN101247444B Sound output setting system for sip terminals
08/07/2012US8238380 System controlling use of a communication channel
08/07/2012US8238330 System and method for transmitting a telephone call over the internet
08/07/2012US8238328 Telephone system having multiple distinct sources and accessories therefor
08/07/2012US8238264 Hierarchical data collection network supporting packetized voice communication among wireless terminals and telephones
08/02/2012US20120196632 Intelligent Delivery Agent for Short Message Distribution Center
08/02/2012US20120195307 Method and System for Providing to a Second Party, Computer-Network Related Information about a First Party
08/02/2012US20120195306 Method and System for Providing to a Second Party, Computer-Network Related Information about a First Party
08/02/2012US20120195184 Systems and methods for orthogonal frequency divisional multiplexing
08/01/2012EP2482586A1 Switching system and method of ringing session with crbt
08/01/2012EP2481205A1 Method for configuring the ringtone of a terminal and device suitable for implementing said method
08/01/2012EP1310060B1 A multimedia communication control unit as a secure device for multimedia communication between lan users and other network users
08/01/2012CN202364283U Security gateway backup device
08/01/2012CN102625191A Electronic device and method of dialing VOIP telephone in television screen
07/2012
07/31/2012US8234360 System for processing messages to support network telephony services
07/31/2012US8233934 Method and system for providing access via a first network to a service of a second network
07/31/2012US8233612 Network apparatus capable of canceling far-end-crosstalk and network signal processing method thereof
07/31/2012US8233603 Method and apparatus for communicating with one of plural devices associated with a single telephone number
07/31/2012US8233485 Network interoperability
07/31/2012US8233476 SCP-controlled overlay between GSM and IMS
07/31/2012US8233472 POTS extender for voice fallback in a subscriber line
07/26/2012US20120188330 System and method for initiating a conference call
07/25/2012EP2479970A1 Method for voip instant call
07/25/2012EP2479969A1 A network abstraction gateway and corresponding method to abstract an endpoint
07/25/2012EP2479950A1 Method for conversion between session initiation protocol message and integrated services digital network user part message and conversion device thereof
07/25/2012EP2478689A1 Method for notifying communication in progress to terminals connected to domestic gateway
07/25/2012EP1123626B1 Ip roaming number gateway
07/25/2012CN202353602U Emergency communication system for mine
07/25/2012CN102612827A Method and node for routing a call which has services provided by a first and second networks
07/25/2012CN102611811A Interactive voice response system and method
07/25/2012CN102611810A Communication method, application platform and communication device
07/25/2012CN102611591A Hybrid fiber-coax accessing system capable of replacing ONU (Optical Network Unit)
07/25/2012CN101969526B Three network fused set top box
07/25/2012CN101547222B Method for transmitting SIP request history information in VoIp Network
07/25/2012CN101453500B Integrated network telephone apparatus and setting method thereof
07/25/2012CN101366257B Service chaining
07/25/2012CN101247385B Method , terminal and system for establishing VolP communication by digital video broadcasting network
07/25/2012CN101184047B Message routing method, equipment and system
07/24/2012US8230111 Method for transmitting signaling messages using alternate path
07/24/2012US8229401 Technique for providing personalized information and communications services
07/24/2012US8228951 Method and system for preventing data loss in a real-time computer system
07/24/2012US8228905 CTI control system
07/24/2012US8228879 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
07/19/2012WO2012097127A1 Identifying public safety answering point (psap) callbacks in internet protocol (ip) multimedia subsystem (ims) emergency services
07/19/2012US20120182987 Xml based transaction detail records
07/18/2012EP2477424A1 Method, apparatus and system for intelligently rectifying dialing of prepaid roaming subscriber
07/18/2012EP2476243A1 Route select service
07/18/2012CN1805575B Method of managing multimedia data and mobile communication terminal
07/18/2012CN101557445B Analog processing device for data transmission device
07/18/2012CN101541035B Mobile communication system
07/18/2012CN101472020B Method, device and system for implementing network telephone business
07/18/2012CN101155227B Method, system and device for providing context control in inter-person communication
07/18/2012CN101035092B Information processor, method
07/17/2012US8224395 Auditory spacing of sound sources based on geographic locations of the sound sources or user placement
07/17/2012US8223952 Routing based upon origin of a call
07/17/2012US8223951 System and method for alternate path routing and redundancy based on cost sensitive network selection
07/17/2012US8223950 Dual network telephone device
07/17/2012US8223949 Method, apparatus and software for providing communications between a packet switched network and a public switched telephone network
07/17/2012US8223942 Conference endpoint requesting and receiving billing information from a conference bridge
07/17/2012US8223757 Methods and apparatus to perform call screening in a voice over internet protocol (VOIP) network
1 ... 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 ... 248