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)
05/2010
05/13/2010US20100119047 Telecommunication redirect system and method
05/13/2010US20100118866 Internet protocol transport of pstn-to-pstn telephony services
05/13/2010US20100118864 Hierarchical Data Collection Network Supporting Packetized Voice Communications Among Wireless Terminals And Telephones
05/12/2010CN201457194U Wartime emergency communication command vehicle
05/12/2010CN1968112B IMS-based voice-conference voting system and network device
05/12/2010CN1957626B System and method for intelligent dynamic message addressing
05/12/2010CN1929311B Coder-decoder using single simulation to digital transducer and signal processing method
05/12/2010CN1889611B Real-time speech communicating method and real-time speech communicating system
05/12/2010CN1859518B Cross-gate keeper call processing method
05/12/2010CN1613249B Directory delivery system and method for a digital subscriber line modem
05/12/2010CN1520197B Method and apparatus for implementing call processing in packet telephony networks
05/12/2010CN1476220B Method and apparatus used for supporting centralized voice message box service in distribution type telephone network
05/12/2010CN101707661A IP multi-media access method and system for cable television
05/12/2010CN101707660A Wireless VoIP speech transmission device
05/12/2010CN101707659A Technology of transmitting information on calling number of extension in FxO interface
05/12/2010CN101707658A Method for realizing voice service in domestic information machine
05/12/2010CN101707609A Method and apparatus for connecting packet telephony calls between secure and non-secure networks
05/12/2010CN101707593A Conference system based on tree-shaped servers, PC client sides and telephone terminals
05/12/2010CN101052056B Soft exchanging system and power identifying processing method for call business
05/12/2010CN101047749B Communication system capable of dailing network phone by mobile phone
05/12/2010CN101043558B Communication apparatus and method for avoiding deadlock of terminal equipment
05/12/2010CN101027894B A method and apparatus for multimedia communication
05/12/2010CN101026657B Synchronizing method capable of synchronizing telephone directory content
05/11/2010US7715545 Internationally accessible communications
05/11/2010US7715543 Method for verifying telephone call back information for return calls which are initiated via the internet
05/11/2010US7715421 Third party call control of all phones
05/11/2010US7715413 Multi-network exchange system for telephony applications
05/11/2010US7715412 Decomposed H.323 network border element for use in a voice-over-internet protocol network
05/11/2010US7715375 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
05/11/2010US7715371 Method and apparatus for accessing communication data relevant to a target entity identified by a number string
05/11/2010US7715364 Data sink/data source, data transmission device and data terminal device for a circuit-switched and packet-switched network
05/11/2010US7715332 Determining presence for interaction routing
05/06/2010US20100111284 Synchronization of multiple target system data
05/06/2010US20100111283 Methods, apparatus and articles of manufacture to determine routing for identical virtual private network (vpn) numbers assigned to multiple companies
05/06/2010US20100111078 Method and apparatus for enabling customer premise public branch exchange service feature processing
05/06/2010US20100111077 Method and apparatus for enabling customer premise public branch exchange service feature processing
05/06/2010US20100111076 Method and apparatus for enabling customer premise public branch exchange service feature processing
05/06/2010DE102009051965A1 Netzzugangsvorrichtung und Kommunikationssystem Network access apparatus and communication system
05/05/2010EP2181545A1 Using pstn reachability to verify voip call routing information
05/05/2010EP1606913B1 Method, system and network device for routing a message to a temporarily unavailable network user
05/05/2010EP1166501B1 Base station subsystem and method for handling an increase in traffic volume that overloads a terrestrial link in an internet protocol network
05/05/2010CN1889610B Large-capacity distributing signalling processing equipment and method thereof
05/05/2010CN1852376B User information storage method and system and terminal device
05/05/2010CN1750665B Implementation of linkset-related SS7 network functions based on M3UA messages
05/05/2010CN101702795A System and method for sharing authority enabled user simple files
05/05/2010CN101702749A Dual tone multiple frequency event frame processing method, system and media gateway
05/05/2010CN101702712A Detection technology and voice call backup linkage method and device thereof
05/05/2010CN101702275A Short-wave digital radio station network simulated training system
05/04/2010US7711823 System for establishing and maintaining a connection
05/04/2010US7711109 System and method for subliminal time domain duplexing
05/04/2010US7711103 System and method for intelligent service agent using VoIP
05/04/2010US7711102 Automatically sequentially ringing alternative telephone numbers
05/04/2010US7711099 Method and network structure for moving a call leg
05/04/2010US7711098 Method for call forwarding without hairpinning and with split billing
05/04/2010US7710949 Distributed telecommunication network
05/04/2010US7710945 Method and arrangement for multimedia communication
05/04/2010CA2395574C Improved session initiation protocol (sip)
05/04/2010CA2388938C Terminal-to-terminal communication connection control system for ip full service
04/2010
04/29/2010US20100104085 Method enabling interoperable communication between real and virtual communities
04/29/2010US20100103928 Telephone outlet with packet telephony adapter, and a network using same
04/28/2010EP2180681A1 Method for establishing a communication e.g. by using an image search engine
04/28/2010EP2180678A2 Device and method for adjusting bandwidth in a telecommunications network and accompanying computer program product
04/28/2010EP2180670A1 Telephone systems and communication terminals for use in such telephone systems
04/28/2010EP2179576A1 Path replacement in order to remove server used to initiate call from the resulting communications path
04/28/2010CN1848969B Method and system for realizing comprehensive business network user partial information and parameter compatibility
04/28/2010CN1645835B System and method for providing unified messaging system service using voice over internet protocol
04/28/2010CN1630411B Roaming method, mobile communication system for roaming, system facilitating roaming
04/28/2010CN1555185B IP cell phone
04/28/2010CN1487717B Double-IP telephone and method for telecommunicating with the same telephone
04/28/2010CN101699843A Voice call method and device capable of automatically adapting camel network type
04/28/2010CN101699832A Ip telephone network
04/27/2010US7706817 Provision of group services in a telecommunications network
04/27/2010US7706519 Assembly, and associated method, for telephonic call connection with a virtually-resident telephonic station
04/27/2010US7706511 System and method for sending text messages converted into speech through an internet connection
04/27/2010US7706349 Methods and systems for selecting modulation in an orthogonal frequency division multiplexing system
04/27/2010US7705487 Power restoration system for electrical power network
04/22/2010US20100098241 Local Number Portability for Mobility Management
04/22/2010US20100098224 Method and Apparatus for Automatically Building Conversational Systems
04/22/2010US20100098061 Methods and apparatus for maintaining connectivity with an internet protocol phone operating behind a firewall
04/22/2010US20100098060 method and apparatus for connecting packet telephony calls between secure and non-secure networks
04/21/2010EP2178284A1 Radio communication device, radio communication device, and communication control method
04/21/2010EP2178039A1 Advertisement effect determining method, advertisement effect determining system, and advertisement effect determining program
04/21/2010EP2176995A1 Apparatus, method and system for providing new communication services over existing wiring
04/21/2010EP1678930B1 Conference calls via an intelligent call waiting interface
04/21/2010CN201440680U Video touch screen dispatcher station system
04/21/2010CN1953489B A control method for data package transmission path, network telephone system and wireless network phone
04/21/2010CN1848848B Communication method and real time transport protocol (rtp) audio frequency processor
04/21/2010CN1829265B Method and apparatus for registering multiple phone numbers associated with a frequently called party
04/21/2010CN101697566A VoIP based display system and method of calling/called two-way multimedia ring back tone
04/21/2010CN101697565A Fault detection method and device
04/21/2010CN101175118B Gateway and its signal strength adjustment method
04/20/2010US7702319 Communication apparatus including a mechanism for reducing loss of text telephone information during normal traffic channel preempting
04/20/2010US7702092 Communication system and method of routing calls to a terminating end point
04/20/2010US7702091 Methods and apparatus for interoperating communication networks
04/20/2010US7702079 Adapter unit and method
04/20/2010US7701954 Gateway with voice
04/20/2010US7701927 Method for transmitting communication data in a communication system
04/20/2010US7701926 Multipoint multimedia/audio conference using IP trunking
04/20/2010US7701886 Packet loss concealment based on statistical n-gram predictive models for use in voice-over-IP speech transmission
04/20/2010US7701865 Method and apparatus for configuring an automatic cross connect system at a remote wiring hub
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