227527 ⎘
Substation equipment, e.g. for use by subscribers Interface circuits for coupling substations to external telephone lines
Sub-classes:VoIP analog telephone system
#2Telephony terminal
#3VoIP analog telephone system
#4Telephony terminal
#5VoIP analog telephone system
#6Telephony terminal
#7Mobile-cordless phone systems
#8VoIP analog telephone system
#9VoIP analog telephone system
#10Telephony terminal
#11VOIP analog telephone system
#12Telephone interface
#13Telephony terminal
#14Serial digital interface between an RF transceiver and a baseband chip
#15Telephone switch, call pick-up method therefor, call pick-up program therefor, and telephone system
#16System for providing telephony and data services
#17Method and system for waking up remote devices
#18Mobile terminal
#19System for providing telephony and data services
#20DOCKING DEVICE WITH TELEPHONE EXCHANGE FUNCTION
#21Mobile terminal with the function of wired communication
#22System and method for effecting prearranged notification following placing of a call using a predetermined number
#23COMMUNICATION APPARATUS, POWER CONTROL METHOD THEREOF, AND COMPUTER READABLE MEDIUM
#24CORDLESS TELEPHONE SYSTEM
#25STATIONARY WIRELESS TERMINAL AND SWITCHING METHOD FOR AUTOMATICALLY SWITCHING COMMUNICATION LINES
#26SESSION INITIATION PROTOCOL ENABLED SET-TOP DEVICE
#27Driver Circuit and Method for Driving a Signal
#28Subscriber Line Interface Circuit with DC-DC Converter Current Protection
#29Telephony terminal
#30Separation device and method for transmitting voice signal
#31Customer premises equipment telephone device providing advanced media features
#32SUBSCRIBER LINE INTERFACE CIRCUITRY WITH INTEGRATED SERIAL INTERFACES
#33System, method, and apparatus for facilitating wideband audio over a coil-assisted digital subscriber line loop
#34VoIP line seizure system and method
#35VOIP With Internet Access
#36Adapter for switching a telecommunication terminal, uses and method
#37TELEPHONE INTERFACE CIRCUIT
#38CUSTOMER TERMINATION POINT IN THE SUBSCRIBER PREMISES OF A TELECOMMUNICATION AND/OR DATA LINK AND METHOD FOR CHANGING PROVIDERS
#39Telephone interface circuit
#40Splitter with Active Transient Suppression Circuit
#41Telephone interface circuit
#42Communication terminal device with echo canceller and its echo canceling method
#43Telephone service interface
#44Auto-swap call box device and method for automatically swapping line connection
#45Method and system for locally performing local number portability switching at a media terminal device
#46Maintaining line voltage during reset
#47Subscriber Line Interface Circuitry
#48Subscriber Line Interface Circuitry
#49Multi-stage differential warping amplifier and method
#50Telephone line switching device
#51Telephone-coupled device for internet access
#52Voice-telephone-line multi-point remote access system
#53Telephony terminal
#54Telephone line communication interface
#55VOIP With Local Call Access
#56Systems and methods for an electronic hook switch for customer premises equipment
#57Determining an active line
#58VOIP with Local Call Access
#59Method of configuring interface device and protection device in digital communication system, and the resultant system
#60Driver circuit and method for driving a signal
#61Communication networks that include a high pass filter circuit for connecting communications wiring at a customer premises location to an outside plant loop and methods of operating the same
#62Method and control circuit for generating a supply direct voltage for an analogue telephone
#63Subscriber aggregated power
#64Method and system for adjusting line interface level to compensate for induced loss
#65Session initiation protocol enabled set-top device
#66Session initiation protocol enabled set-top device
#67Maintaining life line packet-switched telephony services
#68Flexible hook switch driver circuit
#69NETWORK PHONE ADAPTER CAPABLE OF UTILIZING A NORMAL PHONE TO SERVE AS A MICROPHONE AND A SPEAKER
#70High performance ADSL line conditioner system and method
#71Device and method for monitoring available calling plan minutes
#72Amplifier for unshielded twisted pair wire signals
#73Communication device with communication circuit control system
#74Direct digital access arrangement circuitry and method for connecting DSL circuitry to phone lines
#75Automatic telephone line switch
#76Method, system, and apparatus for providing wireless identification to standard telephone
#77Terminal device using a public switched telephone network
#78Hybrid circuit for bidirectional frequency division multiplexed communication
#79Subscriber line interface circuitry